unreported misfire at idle

**02bluegtss** · 05-28-2011

Hey everyone,

here are the details : 02 gp with the ssm90 3.8 pulley, tb spacer, zzp stage 1 tb, fuel logs, autolite 103's, zzp 10.2mm wires, zzp 2.5" downpipe with high flow cat, k&n cai.

my issue: every once in a while, not all the time, i will come to a stop and the car will be idling. i will get what feels like a misfire, some of my passengers have even commented on it, above idle everything is ok. Now with a scan tool there are no codes reported.

does anyone have any ideas? kind of annoying when your sitting in the car

thanks

Mike

**Fivefingerdeathpunch** · 05-28-2011

These car are well known to misfire at idle when modded. Its pretty normal for it to happen.

**01gpgt01** · 05-28-2011

X2, mine did the same till I started tuning myself. You really need a Plog for that 3.8 pulley. Id just get headers since you have that tiny downpipe aswell.