2008 infiniti g37 p0300 code. Refer to the Electronic Service Manual (ESM), section IP-Instrument Panel, for glove box removal information. The emission-related diagnostic information has been erased from the backup memory in the ECM. 2004-2005 Infiniti FX35 4WD. Ignition coils harness is open or shorted. I have had a parasitic draw issue for about a year that I haven’t been able to track down that has caused a couple of weird low voltage factory codes when my voltage is under 12. to/3jrOdwQ - Ignition Coils I usehttps://amzn. OBD2 Code P0113 Infiniti definition: The powertrain control module (PCM) monitors the temperature of the air entering the engine. A P0300 Infiniti diagnostic code indicates a random or multiple misfire. Definition: Multiple Cylinder Misfire Detected (Includes Hybrid Models) Description: HYBRID MODELS CAUTION: Hybrid systems use very high-voltage battery systems. NOTE: During reprogramming, DTCs will set in several systems and must be erased. Oct 6, 2020 · 2006 3. It is common for most auto repair shops to charge between $75 and $150 per hour. But on many Chevy vehicles, when using an OEM-level scan tool, the code may come up as “Multiple Cylinder Misfire Detected. If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'. Still had slight rough idle. Top Feb 21, 2022 · P0011 definition: Intake Camshaft Timing- Over-Advanced Bank 1. I have a 2007 Infiniti g35 X , for the last two weeks my car has been hesitating between 1000-2000 RPMS. Code: P0300. NOTE: If you believe Jun 14, 2020 · Description. An EVAP leak has been detected where the vent control valve mounts to the canister. Mar 26, 2024 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. 2. When I started it, again with the gruff and rough idle, got on the highway and it again yanked my chain but this time it was whenever I attempted even a two A P0300 code in association with a check engine light may indicate problems with your vehicle’s ignition. ”. The PCM supplies a 5 volt reference voltage to the Intake Air Temperature (IAT) sensor. Jul 21, 2022 · There is a Factory Service Bulletin for the following Infiniti models: 2004-2005 Infiniti FX35 2WD. u0001 Insufficient compression. P0106 is the general code for a problem with the MAP circuit having problem of incorrect voltage output range or an issue with engine performance. The vent control valve O-ring seal is determined to be the cause. After Dec 4, 2023 · The P0300 code specifically applies to the Chevrolet Silverado and refers to engine misfires. Jan 4, 2023 · Emission Repair🚨The Oxygen sensor fuse was the cause of all these codes P1148 P0051 P0031 p1168. P0300. I recently did an engine swap to another VQ37VHR engine, older engine had engine knock, but 0 check engine codes. what year altima is it and how many miles are on it. Determine the incident according to the display. Pull codes and came up with this awesome list: P1148 Bank 1. Possible causes for the P0305 code include issues with the ignition system, fuel system, or engine mechanical problems. Yes. And while the description might imply a failed converter, odds are the ultimate fault lies somewhere else. Remove and inspect all 6 ignition coils for damage. The P0305 code stands for “Cylinder 5 Misfire Detected,” which means the powertrain control module (PCM) has counted enough misfire events on cylinder 5 to store the misfire code. Possible solutions may include replacing faulty spark plugs, ignition coils, or fuel injectors, repairing vacuum leaks, cleaning carbon buildup from intake valves, addressing issues with the fuel system, or even performing an engine rebuild if necessary. For the P0051 code, I know the upstream oxygen sensor needs to be replaced on B2S1 since there is no activity on the short term fuel trim. 6. Possible causes of OBD code P0303 Infiniti. All 2008 G37 vehicles, 2009-2010 G37 MT vehicles: Perform steps 4 and 5, below. 02 ALTIMA 3. If I clear the code using the scanner it resurfaces quickly P0300). Only fix is to take apart the whole front of the engine and replace the seal. Cleared the code and car sat for a week. A P0302 Infiniti code, for example, would Oct 8, 2020 · HiI have 2013 infiniti g37 ipl it gives me P0300 multiple misfire cylinders (2 , 4 , 6) And sometimes a code says " bank 2 powretrain rich"I changed the spark plugs with new OEM ones Also, I swapped t … Feb 16, 2019 · Therefore, the A/F sensor is able to indicate air/fuel ratio by this pumping of current. P0000 No Self Diagnostic Failure Indicated. If it comes back higher than that, the P0113 trouble code gets set in the computer. Sep 17, 2021 · Hi Eric, I am getting the following (6) codes on a 2008 Infiniti G37 (3. The last digit of the latter three codes Research the 2008 INFINITI G37 at Cars. Had to manually relearn the new part. Feb 17, 2019 · Therefore, the A/F sensor is able to indicate air/fuel ratio by this pumping of current. Most vehicles will have 4-6 cylinders. Basically this means that the the car’s computer has detected that not all of the engine’s cylinders are firing properly. u0001 The injector circuit is open or shorted. Those two are definitely related. 2008 Infiniti G37S Coupe 5AT INFINITI G37 STUCK IN LIMP MODE (codes P0021, P0524, P0448) P0300, P0302, P0306 Misfire codes All about Infiniti's G37. The fuel level sensor output voltage changes depending on the movement of the fuel mechanical float. Jul 13, 2021 · Summary. 6K posts Jul 8, 2004 · Or, use a small screwdriver to turn the diagnostic mode selector switch, located on the side of the ECM/ECU, fully clockwise. Symptoms. Mar 25, 2024 · To diagnose the P0456 Infiniti code, it typically requires 1. Aug 8, 2008 · Infiniti Car Forums G35 Forum, G37 Forum, G25 Forum, Q40 Forum G35 and G37 General Discussions G35 and G37 Engine, Drivetrain & Tuning G35 and G37 Interior, Exterior and Audio G35 and G37 Suspension, Brakes, Wheels and Tires G37 Convertible Forum G35 and G37 Modification database Infiniti Q50 / Q60 Forum Infiniti M35 and M45 Forum Dec 13, 2008 · The ECU blows the P0011 code because the oil pressure is slightly low as a result of the blown gasket. and. The Diagnostic Trouble Code (DTC) will be set when an excessively high voltage from the sensor is sent to ECM. What Does the P0300 Code Mean? The P0300 code indicates that a random/multiple cylinders are misfiring. To diagnose the P0011 Infiniti code, it typically requires 1. P0150 o2 circuit Bank 2 Sen 1. 7 Throwing P0300 Misfire code at cold start - Please assist. Jan 23, 2007 · 00 maxima P0300 code, Random multiple misfire, please help! Post by Ashvin » Thu May 07, 2009 9:49 pm. Battery voltage is supplied to the Engine Control Module ( ECM) even when the ignition switch is turned OFF for the ECM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc. Jul 20, 2022 · Code P0300 2003 Infiniti G35 Description. Aug 29, 2010 · P1148 - CLOSED LOOP CONTROL. This had to be done twice because I guess they didn't do the heads right the first time and the car was running super rough. Symptoms of the P0305 code 2009-2010 G37 AT vehicles: Proceed to TCM Reprogramming on page 6. Ignition coils circuit poor electrical connection. The IAT is a thermistor that varies resistance based on temperature. However, if the ECM cannot identify a specific cylinder, it will set the P0300 code instead. Sep 20, 2019 · Repair Information for P1815 Infiniti code. So I have a 2012 QX56 that has been giving me nothing but problems for about a year now leading up to my current seemingly unfixable problem. Each cylinder will fire a spark plug, one after another, in a smooth and continuous manner. pdf on page 163) and before I go through Feb 8, 2018 · Recommended Services. Possible causes of OBD code P0302 Infiniti. Maybe the harness during the engine swap after several hundred miles of driving just needs a little "tweak" or my O2 sensor is really going out or was damaged during the engine swap. Start by checking for intake leaks, intake gaskets are common causes of multi-cylinder misfiring. 5SE 5-SPEED. Issue Severity: SEVERE – Stop driving immediately. P0106 Trouble code definition. Anyone have any idea what to check next? Jan 7, 2023 · Here are some causes which can trigger the P0300 error code. Apr 29, 2021 · This is for all Z owner's 350z 370z g35 g37 a lot of car enthusiasts have randoms misfires well today is your lucky day im going to share a few tips on how t May 30, 2020 · To diagnose the P0430 Infiniti code, it typically requires 1. >On J30, Q45 and QX4 models, connect a suitable Scan Tool to the DLC, located under or on lower portion of instrument panel. Jan 28, 2016 · You will need to get a sensor from the dealer to resolve this code. Nov 2, 2021 · Check engine light came on and went to local auto parts and code p0300 came up. P0603 Infiniti Code - Engine Control Module Power Supply Circuit. Code P0300, P0302, P0303, P0316 2013 Infiniti G37 - code p0420, p0301, p0615- been chasing these codes for what feels like forever upvotes Feb 16, 2019 · To diagnose the P2A00 Infiniti code, it typically requires 1. 7L with 140k miles started throwing the dreaded P0300 random misfire code two weeks ago at cold startup. u0001 Incorrect fuel pressure. Jun 25, 2007 · DTC No. Mar 18, 2014 · Check engine light is still on and now its time for tag renewal, unfortunately impossible to do with a CEL. Carefully inspect the electrical connector and wire harness looking for Jun 18, 2020 · 2009 Infiniti G37 engine light is on codes p0300 p0011 p0021 p0524. Checked all the vacuum lines. Looks like you have a Oxygen sensor going bad. SAE refers to the code as “Random Misfire Detected. 7L): P1815, P0615,P1168, P0021, P0051 & P0300. Aug 19, 2010 · I scanned it once back at home and got a P0300 (multiple random misfire) and P0014 (Cam shaft control solenoid B- Bank 1- timing over advanced). Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. The diagnosis will end and memory will then be cleared. Car had 200,000km so we replaced spark plugs. I've checked each each ignition coil, no visible defects and the ohm readings were consistent. Nov 28, 2020 · 2009 Infiniti G37 engine light is on codes p0300 p0011 p0021 p0524. So by taking the Sensor from Bank 1 and putting it in Bank 2, and putting the after market sensor into bank 1, the code then changed to Bank 1 which indicates it's the sensor that is the problem. The P1168 code indicated there was a 02 sensor operation issue on Bank 2. P0031 Bank 1 Sen 1. I'm going through the FSM (EC. And its now throwing the air fuel sensor codes which makes me think they caused the p0300 or were caused by the p0300. I am thinking these codes might be relate or it might need a engine variable timing solenoid or cam shaft sensor. Diagnosis: This trouble code severely impacts the drivability of your vehicle. P0031 - A/F SENSOR 1 HEATER. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. Replaced O2 sensor fuse and reset check engine light. This over advanced condition could be during advancing, or retarding of the camshaft timing. High idle have p0300 code only but cars not missing well it is but its steady a 1000-1100 rpm at idle , could it be a leak maybe or pcv Apr 9, 2009 · P0138 = Rear O2 sensor Bank 1, Circuit High voltage. Locate the steering member RH mounting point. An Causes. Post by Isayany » Tue Feb 17, 2015 6:52 pm. On G20 and I30 models, connect a suitable Scan Tool to the DLC, located under instrument panel fuse box cover. Apr 19, 2019 · The fuel level sensor consists of two parts, one is mechanical float and the other side is variable resistor. Multiple cylinder misfire detected. It should be noted that a steadily-illuminated engine light indicates an active misfire Sep 8, 2012 · Diagnostic codes : P1212 P1612 U1000 P0300 Random/Multiple Cylinder Misfire Detected Infiniti G35 G37 Forum. They also sent the heads to be machined. The spark plug fires a spark, using the flammable fuel air mixture, and sets fire to the fuel. com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. P2A00 Infiniti Code - Air Fuel Ratio Sensor Circuit Range/Performance Bank 1 Sensor 1. May 30, 2020 · Tech Notes. What the P0106 code means. I replaced both cam sensors and both vvt solenoids. Remove the glove box. In addition, a heater is integrated in the sensor to ensure the required operating temperature of 700 - 800°C (1,292 - 1,472°F). . just replaced engine has brand new oil pressure switch and oil level is good. Jan 14, 2023 · P0300 Random, Multiple Misfire Detected means that your car’s computer (PCM) detected that there is a misfire in random or multiple cylinders. 2004-2005 Infiniti G35 Sedan 4WD. P0037 Bank 1 Sen 2. A code P0303 Infiniti may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor (s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter (s) Running out of fuel Poor compression Defective computer. Dec 22, 2022 · The Intake Air Temperature signal is used as an input for various systems in the vehicle. P0051 Bank 2 Sen 1. Hi i am having 2 codes a p0300 and p0021 i cleaned out my MAS Apr 6, 2024 · Labor: 1. My 2006 3. I was working on valve seals and trying to diagnose the p0300. Multiple cylinder misfire. If the problem persists more tests need to be done to diagnose the problem. Here's the link for the relearn procedure:https://youtu. I show you each individual cylinder 1,2,3,4,5, and 6 how to change Jul 30, 2022 · 2006 Infiniti G35 came in with a rough idle. When a misfire occurs, engine speed will fluctuate. to/3FU232z - Long Needle Nose Pliers I used Dec 1, 2013 · The P2A00 is a fairly straight forward code pointing to a fault with the A/F Sensor (Air/Fuel Ratio Sensor) for Bank1. Dec 25, 2022 · https://amzn. Other than that the car drives good. Causes. My initial research on P0021 for the G37 had me scared because others got that code with P0524 and that was a very expensive repair for most. You can clear the code, add oil, and you might be good for a while--but it will come back. Replaced the crank sensor since it was the first suggested repair based on vehicle mileage and frequency of Feb 17, 2015 · Code p0171. Table of contents. Remove and clean the MAP sensor with an electronic parts cleaner. Dec 10, 2021 · Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. This actually worked for me. Please check below for your specific make. 2 so I got better about trickle charging to keep my voltage right. The PCM looks for the 5-volt reading from the IAT sensor. – Engine Light ON (or Service Engine Soon Warning Light) P1148 Infiniti OBD Code Description. Learn what Manual Mode Switch means, location and how to repair? Feb 8, 2018 · Recommended Services. 2004-2005 Infiniti G35 Sedan 2WD. Fuel injectors harness is open or shorted. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #1. No other codes observed via my Actron CP9690 scan tool. 0. DO NOT perform TCM Reprogramming procedure. Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases, the catalytic convert needs to be It must be refreshed after any changes. Check harness and connectors. P0021 is the OBD-II generic code indicating that the Engine Control Module (ECM) has determined that the bank 2 intake camshaft is more advanced than what the ECM has commanded it to be. The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Mar 14, 2024 · Manually check that the wiring isn’t damaged, and the host and clamps are tight and fitted. A clogged or failing catalytic converter can cause the vehicle to have poor fuel economy. P0113 Infiniti Code - Intake Air Temperature Sensor Circuit High. Jul 27, 2017 · P0300 is for a random misfire and is the result of P0021 which reads as Camshaft Position - Timing Over-Advanced or System Performance Bank 2. You, your mechanic, or your Infiniti dealer will need to read the Engine Control Unit (ECU). Jul 20, 2022 · What does this mean? Tech Notes. See "Possible Causes" for the most common problems. Thoughts, suggestions, thanks! Jul 20, 2022 · The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. After Oct 9, 2018 · Engine codes. be/zculFL3sRxA. P1168 Bank 2. Fuel Injectors circuit poor electrical connection. The bulletin suggests reprogramming the Engine Control Module (ECM) first before replacing any parts. Feb 6, 2010 · After researching for a week or so I haven't really found a definitive answer for the p0171 code (lean bank 1). The “Catalytic Converter Efficiency” Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. 4. Jul 20, 2022 · To diagnose the P0171 Infiniti code, it typically requires 1. P0345 Infiniti Code - Camshaft Position Sensor Circuit Bank 2. Similar Nissan cars, like the 350z, 370z, Skyline, etc, are welcome here Members Online Mar 23, 2024 · P0051 Infiniti Code - HO2S21 Heater Control Circuit Low - Code Popularity: 26,460 Views - Repair Importance Level: 2/3 - Repair Difficulty Level: 2/3. A place for Infiniti owners and fans to hang out and chat about the cars, brand, modding, and more. How to clear the engine codes without a Nissan CONSULT or scan tool. . Next, replace damaged wires, then clear the codes, and do a test drive to see if the P0106 code comes back. Jan 7, 2023 · The powertrain control module (PCM) is responsible for monitoring the reading of the air temperature entering the intake. Why Does The P0300 Code Come and Go? If the code P0300 comes and goes, the misfire occurs under specific driving conditions. Trouble diagnosis name DTC detecting condition Possible cause P0300. Infiniti Factory Service Bulletin OBDII Code P1148. A code P0302 Infiniti may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor (s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter (s) Running out of fuel Poor compression Defective computer. Replace the lower bolt at the RH steering member (support tube) mounting point (see Figure 1). P0463 Infiniti Code - Fuel Level Sensor Circuit High Input. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". Damaged spark plugs; Damaged Ignition coil; Faulty injectors; Vacuum leak; Malfunction of the oxygen sensor; Burnt exhaust or intake valve; Defective catalytic converter; A defective throttle position sensor; Faulty PCM; Leakage of the head gasket; How serious is the P0300 Code? Jul 26, 2022 · NISSAN 350Z or INFINITI G35 - How to Stop Car Hesitation (Spark Plugs and Ignition Coil). 3. 1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Not quite a dead misfire and sometime Jul 20, 2022 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. 2013 QX56 110,00 miles. vdc off abs and slip lights all come on when driving an … Jan 27, 2019 · NISSAN 350Z or INFINITI G35 - How to Stop Car Hesitation (Spark Plugs and Ignition Coil). Feb 12, 2024 · If the P0300 code pops up, it's likely that it will be accompanied by related P0301, P0302, or P0303 codes - up to the maximum number of cylinders. The P0301 code means that cylinder #1 is misfiring or is randomly misfiring. Just need latter p I have a 2008 Infiniti G37 with a p0021 code. Clean corrosion on the engine ground, if there is any, with automotive Apr 28, 2024 · Sometimes, a P0300 code may be accompanied by other codes indicating which cylinder or cylinders are misfiring. And put it back together. The P0301 code has not resurfaced. 1/12. Infiniti. Jul 20, 2022 · How to repair P0300 2004 Infiniti G35 code Cylinder Misfire Detected Random Cylinders Nov 8, 2023 · Hundreds of fault codes can trigger the Infiniti check engine soon light. Mar 23, 2024 · Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes. If the engine speed fluctuates enough to cause the Crankshaft Position ( CKP) sensor signal to vary, the Engine Control Module ( ECM) can determine that a misfire is occurring. OBD II Codes. Repair Urgency: Fix this code immediately (same-day if possible) to avoid damage to multiple internal engine components. Aug 8, 2008 · Infiniti Car Forums G35 Forum, G37 Forum, G25 Forum, Q40 Forum G35 and G37 General Discussions G35 and G37 Engine, Drivetrain & Tuning G35 and G37 Interior, Exterior and Audio G35 and G37 Suspension, Brakes, Wheels and Tires G37 Convertible Forum G35 and G37 Modification database Infiniti Q50 / Q60 Forum Infiniti M35 and M45 Forum Infiniti. Make sure to erase DTCs from all systems. 941. Installing a y-pipe shouldn't really mess with the oxygen sensor. The catalytic converter may certainly cause the P0300 random misfire code to show up due to the inability for the exhaust to properly breathe, which can cause un-burnt exhaust gases to reignite inside the catalytic converter. The PCM uses this measurement to adjust the fuel-air ratio. Read the V-CAN diagram using the key provided OR reference the appropriate Electronic Service Manual (ESM) to analyze the CAN Diag Support Monitor data. P0524- Powertrain Engine Oil Pressure Too Low P0011 – “A” Camshaft Position – Timing Over-Advanced or System Performance (Bank 1) P0300- diagnostic code indicates a random or multiple misfire. I want to just replace the MAFS but I'm not sure if that's actually it . Sign in to reply. It's actually a very common wear and tear fail item. Manifold Air Pressure (MAP) Barometric Pressure Sensor Electric Circuit Output Range and Performance Problem. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. Jun 14, 2020 · The change in the magnetic field cause the voltage from the sensor to change. When this code is triggered, it indicates that the engine has detected random misfires in multiple cylinders. P2A03 Infiniti Code - Air Fuel Ratio Sensor Circuit Range/Performance Bank 2 Sensor 1. I just had the head gasket replaced on my 00 maxima with 217,000 miles. This phenomenon What the P0021 code means. Step 4. Code P0300 is often related to bad spark plugs or spark plug wires but could be caused by a number of issues relating to ignition and the air-to-fuel ratio in the cylinders. Aug 2, 2021 · #BigProblem on my #Infiniti #G352003/2006 infiniti g35cylinder P0306 spark plug wires and/ or coils Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. 6 Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals. P0057 Bank 2 Sen 2. Jul 21, 2022 · Tech Notes. If V-CAN diagnosis is not available or inconclusive, refer to the basic CAN Apr 26, 2021 · Code P0300 is a generic OBD code with a standard definition from the Society of Automotive Engineers (SAE). If no leaks are found the next step is to replace the spark plugs. DTC P0456 is not caused by a loose fuel fill cap (refer to ITB13-044). If Spark and coils are good Check Your CAMSHAFT SENSOR* that could Jul 26, 2021 · My 2009 G37 sedan manual has a random misfire (p0300) on startup only for about 5 seconds then goes away entirely. This sensor is mounted to the exhaust on the passenger's side, before the Converter (see image below). And after starting the car for about 5 times the car goes into limp mode and DESCRIPTION OP CODE SYM DIA FRT DTC P0603 SYSTEM CHECK EX16AA HD 32 0. Step 3. just replaced 2008 infiniti g37s throwing three codes and mechanic has had it for 4 days and Feb 15, 2017 · OBD II fault code P1148 is a manufacturer specific code that is defined by car makers Nissan and Infinity as “Closed Loop Control Function Bank 1”, and on these applications, code P1148 is set when the PCM (Powertrain Control Module) detects a condition relating to an air/fuel ratio sensor that prevents it (the PCM) from entering closed Inifini: Accessing Codes w/OBD II. As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). I'm inclined to replace the remaining coils (5) with new Hitachi coils and see if that solves the rough start and multiple misfires. For Infiniti models 2005 and up see: P0031 Infiniti. I also have code p010a that is always on. u0001 Improper spark plug. Yesterday my service engine light came on with a code of P0171 . The Diagnostic Trouble Code (DTC) will be set when the Engine Control Dec 12, 2023 · The appropriate solution for Ford Code P0300 depends on the underlying cause of the misfire. After waiting two seconds, rotate the switch to the full counterclockwise position. 5. u0001 Fuel injectors. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. Closed Loop Control Function Bank 1 is one of the definitions for the P1148 Infiniti; however your vehicle’s manufacturer may have a different definition for the P1148 Infiniti code. Replaced the valve covers and spark plugs. P0037= Rear O2 Sensor Bank 1, Circuit Low. 0 hour of labor. Before starting any service work involving the battery system, turn the ignition switch OFF and then remove the service plug from pocket in the trunk. com lists the following for a 2008 Pathy p0300: Faulty spark plug (s) Faulty ignition coil (s) Clogged or faulty fuel injector (s) Intake air leak. Fully depress the accelerator pedal and keep it for more than 10 seconds. da zi jd ou on ru pp hp cf bn