Finished getting my Camaro back together. Had a P2176 on initial start up got that sorted - idle was fine. Then had fast idle issues. I thought that my ported throttle body might be the cause. I swapped the stock TB back on and recorded these two attached logs.Through both runs scanner detected no DTC's.
First start idle went to 1300 but settled down to ~900. Engine warmed a bit. Gave it some revs and idle went to 1600 and would not settle back down. Tried it a second time and idle went to 1900 then settled to 1600... Secondary O2 sensors are tuned out. but are still connected with no cats.
Reply With Quote