Stage 1 with Dual exhaust Problem

[go-vair]

Had a Stage 1, performed perfect with stock exhaust. I put on a custom dual straight thru resonator--no muffler. Since I put on the new exhaust, car will not start as well, and performance is very sluggish. Seems to have extreme turbo lag. Anybody run into this problem??[:I][:I]

[Cal Cruzer]

Have you tried running codes? Checked for vacuum leaks? Exhuast should not cause hard starting unless the system has some sort of obstruction (you didn't leave a shop rag in there did you?). You may loose just a little bottom end but you would not really notice it. It might show up on a dyno run as a loss of a little power down low but the Seat-of-the-pants dyno would not really feel it a bunch. I don't like to bog my engine down low anyhow.

[bigdogdad]

Far out of my knowledge but from what I read maybe something like disconnecting the battery or maybe you have to go through all the learning steps for the tranny again?

[Punch]

did you bust an O2 sensor?

[ptcruzin42]

my 02 sensor got messed up when my exhaust got installed, caused backfiring problems and lsuggish response, cracked a spark plug to, check that out.

[COP TZER]

backfiring and sluggishness, hmmmmm... do you have an air-fuel or EGT gauge??? You may be runninig very rich,you may have blown out a plug.. try resetting your computer. If anything your car should spool faster than with the stock exhaust...