2001 Cadillac DeVille "efficant" Questions

2001 Cadillac diagnostic intermittent code points to catalytic converter but car rides smooth. no indication of problem with catalytic converter. the problem could be that the convertor is no longer ...

catalyst efficency below threshold please define this trouble code; catalyst efficency below threshold bank 1 sound like a injector problem The code Im assuming is po420, or po430. In either case it ...

I'm getting error code 72 - right rear (or just) catalyst efficency failure. Can anyone help with this There is an oxygen sensor (o2 sensor) in front of the catalytic converter, and another one behind

parking brake efficency too low parking brake The parking break is a stand alone cable that can be adjusted if you climb under the vehicle. depending on your parking break location in the cab will ...

i have a 2003 silverado 6 cyl. it reads a codePO430 CATALYST SYSTEM EFFICENT BELOW THRESHOLD {BANK2} Either you have a bad O2 sensor or the screen in your CAT could be clogged.

had code po420 po132 and replaced co sensor the check engine light came back on p0420 is cat below efficency have you checked the cat to see if your emissions are in spec ? if they are it could be the

spark plug gap i need the most efficent spark plug gap for my geo metro 1.0 .045

oil filter for 4.2 6 cylinder engine what is the most efficent and cheap oil filter for a 4 2 engine 6 cylinder Tests seem to indicate WalMart Oil filters are the best filters made

the car excelerates then feels like it short off and shuts down code reader gave me this code p305 p420 P0305 is a misfire on cyl. # 5 P0420 is catalyst efficency below threshold

I am changing an o2 sensor on my 1997 nissan pathfinder. Where is the plug located? (it's the driver side rear oxygen senor) then we are talking the catalytic efficency monitor, it is located behind ...