Roman nj.

An engine light on my dash came on yesterday. It idles rough and the exhuast smells funny. I checked the codes and they say it's running lean and is misfiring. Could it be air intake problem (leak) maf or fuel pressure ? I put the stock tune back and same problem still exists. Can any one help?

02r1

check for air leaks around the intake and check your plugs....thats were I would start

Roman nj.

Thanks, I'll give that a try.

05JUDGE

iTrader: (26)

Sounds like an air leak for sure. Check all the vacuum lines, brake booster hose, etc.

Roman nj.

Didn't find anything loose. I cleared my codes then got another later. lean and o2 sensor no activity bank 2 sensor 1 . Maybe bad o2 sensor? cleared them again and ran it a few miles no more trouble codes so far.

Roman nj.

Trouble code P0154. Somthing else about heating circuit?

05JUDGE

iTrader: (26)

Sounds like you might have a bad 02 sensor.

killa in progress

bad o2 or u burned up your cat. exhaust smells like rotton eggs then u may have burned up your exhaust for sure

cyclerage

iTrader: (59)

Could just be a bad O2. Swap the two front O2's. If the sensor is bad your code will change from p0154 to p0134. If its a wiring problem with the car the code will remail the same

Firebird67

iTrader: (1)

Rotten egg smell is not always the case for a bad cat... Link

Roman nj.

Thanks will give it a try.

TAtoad

iTrader: (22)

can a rear o2 work as a front 02?

Roman nj.

Found the problem. The wire from the passenger side front O2 sensor was torn in two places. I must have ran something over because it tore the plastic anchor clip away and was unclipped. Thanks for the tips guys. I'm also lucky it was on the passenger side because the drivers side has alot of stuff in the way.