Ok my car is running rich and im getting black smoke when blipping on idle.

today i noticed a nice black damp spray on the ground where my drivers side exhaust is not so much on the passenger side. which means im getting loads of unburnt fuel spraying out.

 

 

I just changed the 555 chip to JD one and now it seems to be miss firing on boost

 

I also get hesitation when blipping throttle which makes it hard to pull away

 

 

Ive had it on conzult (thanks Vjay) and lambdas were buggard so ive changed those, everything else seemed ok, running temp etc. tps i think is reading fine.

 

Ive done a boost leak test and all is fine.

 

I havent done a fuel pressure test tho.

 

 

Would it be worth removing the carbon canister as these can sometimes get blocked although i doubt this has anything to do with my problem.

 

 

 

So what else to check/do?

Okay, i noticed before you said Scott gapped these, they should already be pre gapped and ready for fitting.

Am thinking that if the car is perfectly alright except on boost, possibly a plug or coil pack is breaking down. The PTU when warm/hot fails most and reduces the voltage to one or more coils.

If your happy the car runs well except this, why not when time allows take a trip to see a Zed specialst who knows what all snesors/connectors etc should be doing and when.

Knwon guys here to spend days/weeks trying to solve a niggly problem which has then quickly spotted by a specialst easily.

smithy

 

Thats a good idea, once i get my mot and tax next week i probably will.

Thanks for the advice smithy.

hey mate just a thought youve probably already tried it but how about your IACV? when mine died it ran very rich and lumpy

hey mate just a thought youve probably already tried it but how about your IACV? when mine died it ran very rich and lumpy

 

I dont think its dead, it wouldnt idle properly if it was??