Has anyone had idle issues when fitting a decat to there car??
Mines my97 sti and have only had this problem since fitting a decat downpipe. Ive changed lambda sensor, temp sensor, spark plugs, icv yet still my problem persists. Driving me cookoo

 

hi i have a 98 type r put a blitz nur spec on with decat idle was up and down and when i got to junctions it cut out! i tried everything then i realised it needs to be remapped as it is kickijng out more fuel .
so mayne you will have to get it remapped

 

I got blitz aswell. Thanks for that. Mine cant get remapped so looks like I gota get rid of the downpipe
boo hoo