willysink

hi guys, i have just fitted a de-cat down pipe to my sti version 7, the engine managment light comes on briefly now and again!!
is this normal due to the de-cat pipe??
will it affect the running of the car??
cheers

bpm1588

a lot of scooby drivers wouldn't fit a de-cat wothout a re-map so i would be carefull till you get it looked at.at the very least make sure your running on good fuel just incase it is doing harm causing the engine to knock.

dunx

iTrader: (3)

Mine came on a stayed on, cat efficiency as there wasn't one. Your car may be overboosting or who knows what, drive it like Grandma till you get it mapped.

IMHO

dunx

will_wrx

It will be overboosting. Driving it hard will kill it after time. You need to get a map.

TonyBurns

iTrader: (3)

They really dont like being decatted (STI's), it needs a remap asap to run safely otherwise you will be 2.5-3k out of pocket for that engine rebuild

Tony

Midlife......

iTrader: (2)

As tonyburns has mentioned, the UK Bugeye STi does not like being de-catted as the turbo produces boost spikes and therefore det

If you can't afford a re-map there is the option of changing the restrictor pill which will dampen down the boost response...........which sort of defeats the object of the de-cat

I'm an old git and remember all the problems when a certain John Banks de-catted his bugeye STi in about 2002 LOL

Shaun

willysink

thanks guys, i have just rebuilt the engine (for the second time) so will be driving it like a ***** until i get it remapped, i'm not gonna let the turbo spool up, hope it will be ok, 6 weeks till andy forest remap

dunx

iTrader: (3)

Mine was fine for months, just don't go getting excited....

LOL

dunx

willysink

thanks for that i will be driving slowly, don't want another engine rebuild!!!