Engine code P2196
Banned
Joined: Jan 2018
Posts: 2,327
From: Pennsylvania
Bank one, sensor one, reading a stuck rich condition, nut can be for a lot of
reasons:
Oxygen (O2) or A/F ratio sensor or sensor heater malfunction
Open or short in O2 sensor circuit (wiring, harness)
Fuel pressure or fuel injector problem
Faulty PCM
Intake air or engine vacuum leaks
Faulty fuel injector(s)
Fuel pressure too high or too low
PCV system leak/fault
A/F sensor relay faulty
MAF sensor malfunction
ECT sensor malfunction
Air intake restriction
Fuel pressure too high
Fuel pressure sensor malfunction
Fuel pressure regulator malfunction
On some vehicles that have been modified this code may be caused by the modifications (e.g. aftermarket exhaust, headers, etc.).
reasons:
Oxygen (O2) or A/F ratio sensor or sensor heater malfunction
Open or short in O2 sensor circuit (wiring, harness)
Fuel pressure or fuel injector problem
Faulty PCM
Intake air or engine vacuum leaks
Faulty fuel injector(s)
Fuel pressure too high or too low
PCV system leak/fault
A/F sensor relay faulty
MAF sensor malfunction
ECT sensor malfunction
Air intake restriction
Fuel pressure too high
Fuel pressure sensor malfunction
Fuel pressure regulator malfunction
On some vehicles that have been modified this code may be caused by the modifications (e.g. aftermarket exhaust, headers, etc.).
Thread Starter
Joined: Apr 2018
Posts: 48
From: AZ
Bank one, sensor one, reading a stuck rich condition, nut can be for a lot of
reasons:
Oxygen (O2) or A/F ratio sensor or sensor heater malfunction
Open or short in O2 sensor circuit (wiring, harness)
Fuel pressure or fuel injector problem
Faulty PCM
Intake air or engine vacuum leaks
Faulty fuel injector(s)
Fuel pressure too high or too low
PCV system leak/fault
A/F sensor relay faulty
MAF sensor malfunction
ECT sensor malfunction
Air intake restriction
Fuel pressure too high
Fuel pressure sensor malfunction
Fuel pressure regulator malfunction
On some vehicles that have been modified this code may be caused by the modifications (e.g. aftermarket exhaust, headers, etc.).
reasons:
Oxygen (O2) or A/F ratio sensor or sensor heater malfunction
Open or short in O2 sensor circuit (wiring, harness)
Fuel pressure or fuel injector problem
Faulty PCM
Intake air or engine vacuum leaks
Faulty fuel injector(s)
Fuel pressure too high or too low
PCV system leak/fault
A/F sensor relay faulty
MAF sensor malfunction
ECT sensor malfunction
Air intake restriction
Fuel pressure too high
Fuel pressure sensor malfunction
Fuel pressure regulator malfunction
On some vehicles that have been modified this code may be caused by the modifications (e.g. aftermarket exhaust, headers, etc.).
I'm taking it to get the diff fluid changed tomorrow (I couldn't get the fill plug out!!) so I'll poke around under the car a bit while it's on the lift (if possible). It does have an aftermarket exhaust and the exhaust is kinda jacked up, so that is a possibility.
I'll look into it! Thank you!
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cowman79
4.6L (1996-2004 Modular) Mustang
15
Jun 30, 2013 07:47 PM