Questions & Answers for: Oldsmobile Alero p0420 code

1999 Olda Alero My service engine soon came on and there was an evaporator code and a TPS code. What do these codes mean. evaporative emission control system malfunction. tps code is you got a circuit

Have code to unlock radio on Olds Alero don't know sequence of keys to push first There is a code to get from the radio, then a Technicians will call GM to get the actual unlock code. Only takes a few

...code P0420 Does anyone know what that means. try this site: http://www.obd-codes.com/p0420 Yeah, likely the cat converter needs to be replaced. But check out that rear O2 sensor first. Also, another ...

...code p0420, catalyst system efficiency below threshold, bank 1, I replaced the o2 sensor by the catalytic converter and it still runs poor no power i would say you are probably gonna have to replace ...

p0420 code on my 2001 alero and now when I reset the light I am getting a p1133 code. I did put gas treatment into the full tank of gas and then the p1133 code came on. any suggestion on what is going

ABS CODES B1221,B1221,B1223 WHAT ARE THEY? ABS CODES WOULD BE C CODES B CODES ARE BODY CONTROL SYSTEMS. C1221 C1223 WHAT YEAR MODEL TYPE CAR WORKING ON.

Service Engine light, ABS light, and Traction light keep coming on and will not clear I have had to change out my left front hub assembly three times due to faulty speed sensor code. However, this ...

2001 Oldsmobile Alero Service Engine light, ABS, and Traction light keep coming on. No code, only history. Can not get the history to clear?? Have replaced the front drivers side hub assembly 3x now. ...

what is code pd1441 what part do i need to fix this code? The pd means the code is pending, (or intermittent, stored code). Here is what the code means----this DTC indicates that an evap system purge ...

what to fix on 2004 Olds Alero brake sensor code, traction is off, ABS off brake sensor code ???? What brake sensor code ? Can't help you without knowing what code .