service engine codes
Thread Starter
Teching In
Joined: Feb 2004
Posts: 4
Likes: 0
service engine codes I currently installed KN high flow lid and filter, granatelli high flow mass air sensor, 80mm bbk throttle body, ppc long tube headers, random tech high flow cats and american thunder flowmaster system. I am getting po171 and po174 service engine codes. What should I do to correct this problem, the car seems to run fine and the service engine light is going off at times. The car is a 2001 camaro ss with Ls1.
11 Second Club
Joined: Jul 2002
Posts: 1,426
Likes: 0
From: Beaver Falls, PA
throw the MAF in the trash. 171 is fuel trim system lean and 174 is fuel trim system lean bank 2. your PCM may still be getting used to your new setup but sounds like a leak in your passenger side header.
