Installed Catback, now motor stutters.

[peetiewonder]

so i installed my catback system last night. after i did, the check engine light came on, and now the motor sputters at idle. and the higher i rev it, the lower it drops after coming down until it stalls. my friend told me to unplug the battery for a few hours to reset the ecu. does anyone else have any other suggestions?

[projectRDM]

What kind of car? And you did nothing else to it? There's no possible way for an exhaust to cause an engine to hesitate unless it's clogged up.

[peetiewonder]

91 s13 coupe, kade motor. nothing else done. it was fine last night and started doing it this afternoon. its a 3" catback. im going to check the ecu codes and see what that does. i dont think its clogged, but i could be wrong. is there any easy way to check?

[DMaxUSA]

maybe you damaged the o2 sensor in the downpipe?

[peetiewonder]

ill look into that.

[peetiewonder]

also if the O2 sensor is the problem, the ecu will give me a corresponding code right?

[steve shadows]

da tak si yah asso

[peetiewonder]

da tak si yah asso

is there some great wisdom in this statement that i am missing?

[aoiken3]

^^you and me both

[cc4usmc]

da tak si yah asso

I think that's like 4 different ways to say yes, with an ass at the end. Or maybe the yah is ya, or you... so it would be 3 ways.