Questions & Answers for: bank rich lean

RICH BANK 1. CODE PO174 SYSTEM ADAPTIVE FUEL TOO LEAN BANK 2. CODE PO175 SYSTEM ADAPTIVE FUEL TOO RICH BANK 2. ALL CODES COULD BE CAUSED BY AIR LEAKS AFTER THE MASS AIR FLOW SENSOR OR LEAKS IN THE PVC

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Question about 2001 Econoline

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...Rich to bank one P174 Lean to bank two P175 Rich to bank two. These are conflicting codes. I would suspect that you have a bad MAF sensor. take it out and try and clean it before you replace it. It ...

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Question about 1996 F150 Regular Cab

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...the pistons are angled, More commonly known as a Bank, Now Bank 2 lean would mean that the righthand side as you look at the engine will be Bank 2, Lean means that bank is running rich, using more ...

Question about 1996 F150 Regular Cab

1 Answer

...Rich Bank 1 Sensor 2 P2272 O2 Sensor Signal Stuck Lean Bank 2 Sensor 2 P2273 O2 Sensor Signal Stuck Rich Bank 2 Sensor 2 P2274 O2 Sensor Signal Stuck Lean Bank 1 Sensor 3 P2275 O2 Sensor Signal Stuck ...

...P0171 P0174 Lean Codes P0172 OBD II Trouble Code System Too Rich Bank 1 YourMechanic Advice https://www.obd-codes.com/p0175 P0304 OBD II Trouble Code Cylinder 4 Misfire Detected YourMechanic ...

Question about 1996 Thunderbird LX

1 Answer

...bank two being too rich. The computer tries to keep the fuel mixture switching back and forth between rich and lean. If the sensor is "lazy" the computer will make the mixture too rich or lean trying ...

...rich wasbelow a determined number. troubleshooting p1133. Bank 1 sensor is for the exhaust outlet that includes cylinder 1. Bank 1 sensor 1 is the one located before the catalytic converter on the ...

Question about 2005 Endeavor

1 Answer

...rich bank 2 p0171 p0174 PO 171 Bank 1 too lean PO 174 Bank 2 too lean Why ? The front O2 Sensors need to be replaced at 100,000 miles or sooner, if they have actually failed They are reading too lean ...

bank 1 and 2 running too lean. The engine has compensated as rich as it can go, and it is still to lean. This does not necessarily mean your mixture is bad, but something (a sensor) is telling the ECM

Question about 2003 Malibu

1 Answer

...Lean (Bank 2) fuel trim is system to modify injector pulse if system go lean it will go rich when the system is too much lean and is max.rich it code look for 02 sensor bank 1 and 2 data hope it ...

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