0302 (egr system high/low flow)... not sure where the egr valve is... or what to check for. i read the sticky, but didn't help me much. anyone know a possible cause for this? or if any particular mods could trip this? any help would be appreciated. oh, could a test pipe cause this... i also had a 0702 code the the o2 sensor (caused by the test pipe). but the strange thing is that neither code tripped the CEL... while before the 0702 code would trip it by itself.

 

did you use the scanner to find that code?
if so the p0302 code mean cylinder number 2 is misfiring.
but if you use the light method it is an isufficeiet or excessive flow detected. haynes manuel just wanted to used it to help the forum for the first time

 

light method.... and i've already defined the code... i was just wondering why it was there

 

hey your test pipe mad your check engine light go one?

 

yeah, it has come on twice with it... but for some reason the last 2 times i've checked my codes, the 0702 code flashes, but the light was not triggered. oh, and i've figured out why i had the egr prob. so the moderators are welcome to delete this.

 

did u search... and u did read the ecu codes defined thing i made?