I've been trying to track down this probem I've been having after the BBK ceramic coated longtube header install. The car would idle like it had a huge vacuum leak half the time and it would buck and pop up to 3000 rpm, and then after it hit 3k rpm all the sudden run fine! I've tried just about everything (and I mean everything!, even put in new engine harness) until last night i unplugged the O2 sensor harness, and wham idles smooth as silk and doesn't buck or pop. What gives?
Scott
Scott