Runs rich on start up

[Kordain]

Hey all,

Noticed a while back but forgot to mention it, do all IV GTIs run very rich on start up. Noticed mine was leaving a big black mark in the snow when it was fired up. Soon as the engine gets a little warm it clears up and is perfectly clean when revving etc. Figured its just a rich misture to help starting but thought id ask.

Just curious.

Cheers

[Kor]

Re: Runs rich on start up

Do you have any mods? I don't think it should run richer on startup but I could be wrong.

[Kordain]

Re: Runs rich on start up

well im not sure if its been rechipped or not, it suprised me how rich it was , that led me to think it may have been chipped

Ive only had the car a few weeks and its been in my garage in need of a clutch so i havent even driven it really.

[stefan]

Re: Runs rich on start up

a good chip shouldn't cause it to run rich at start up... i don't think.

[DeanerF]

Re: Runs rich on start up

Probbly a bad MAF ...

Run the codes?

[VAG_Tech]

Re: Runs rich on start up

All cars run rich when they're cold. Black on the snow, normal. ECT sends message (resistance value) to ecm and ecm provides outputs to injectors etc. It's all good

[gtx]

Re: Runs rich on start up

All cars run rich when they're cold. Black on the snow, normal. ECT sends message (resistance value) to ecm and ecm provides outputs to injectors etc. It's all good

whats an ECT....or an ECM..

[stefan]

Re: Runs rich on start up

ect = engine coolant temp sensor
ecm = engine contol module... or electronic countermeasure

[Kordain]

Re: Runs rich on start up

All cars run rich when they're cold. Black on the snow, normal. ECT sends message (resistance value) to ecm and ecm provides outputs to injectors etc. It's all good

Thanks for that, I guess its just more noticeable on this as the exhaust points down rather than straight from the back so i saw it in the snow.

Cheers
K..