Have a prob at the mo where it coughs and splutters as soon as i floor it. If i increase teh revs slow and steady without boost it runs fine.

 

I have checked the timing with a strobe as conzult was reporting wrong and no change...about to search on here for boost leak after i've pulled the coil packs and checked the plugs, but assume as she runs sweet at tickover and right up to 3.5 /4k revs with no boost that boost leak is the way to go...??

 

Any thoughts anyone?

I'm not exactly sure what the problem was as I've re-done a few things, but Andy Duff's Advice about the TPS 'closed Throttle' was good and led me to clean all the connectors on this as they were a bit green and the clip on the TPS is broken, so could be causing connection probs (Got a small cable tie on this now). I also checked that the 'TPS closed' sensor opens and closes from idle when opening the throttle. After a clean up i re-checked (using Conzult) and all was OK. (out of interest if this was not working would it cause the throttle not to open properly causing air starvation at higher revs???)

 

Anyway, I then re-set the TPS to 0.46V and then Base idle to 750rpm. TPS was at 0.42 and I've gone back to the advised .45-.5V

 

Next was the timing. I was getting different readings from the timing using the PTU lead (open clamp) so I set the clamp around No.1 Cylinder (near oil cap) and (closed clamp) and re-set the timing. It was severely retarded to about 5degerees BTDC and off the markings. I adjusted the CAS with the engine off and re-starting a couple of times to get it to sit at 15 degrees BTDC at idle. Conzult now reads the same at idle and both conzult and the strobe light showed an advance to 30+degrees when increasing revs.

 

Just come back from a bit of a blat and she's purring like a kitten again!!

 

Thanks to all concerned for your helpful assistance, especially Andy for his helpful attention which pointed me in the right direction!..Roll on 29th June to Brecon!!!:hyper:

having the same problem as you with one slight variation. its fine within the first 20mins then gets progressivly worse untill it struggles to take off from a stop after about 2 hours driving. The coil pack plugs do seem to work them selves loose, not helping the problem, but this dosn't seem to be the only reason. With no knowledge of conzult can you offer any advise as to how i should approach a garage?

 

cheers, jamie.

Sounds like the temp sensor connector needs a good clean. Front of the engine on the upper metal coolant pipe, yellow connector. No need at all for a garage :)

nice one will give that a whirl