Poor Starting and Hesitation

[GeorgeS2UK]

Back on the road now for a few weeks after a top end rebuild and I have a few new problems

1. Cold Start up is awful, lumpy and wont idle properly.
2. Once running power seems fine but tick over varies from 1100 -1300 rpm at idle.
3. When cruising she seems to hesitate, and just does not feel right.

I suspect its all down to sensor info to the ECU, bit I have cleaned the MAF and the ISV, boost seems fine 1bar and 1.1 overboost, vacuum seems fine -600

Any thoughts anyone

George
.

[BRY]

Re-Check all the hoses.
Swap the ISV and see if that sorts it.

[ducattigezzer]

sound's like the problem i had after i had a top end rebuild

turned out to be temp sensor on the back of the head

hope that help's a bit

ray

[daxyz]

Well - for what it's worth I had very uneven idling and very hesitant acceleration - leading my to think that my ISV was faulty AND that I had a boost leak (usual sympoms of accelerating to a certain point then 'bang' cut out and panic)!!

After much investigaton and trial and error I took of the coil packs and high tension connectors to take a peek - low and behold there was a small deposit of what looked like light oil on each metal to metal electrical contact.

Cleaned it off - re-built.......and runs like new!!

No idea where this oil is coming from as the plugs and engine area are dry as a bone!!

But ever 2-3 weeks I have to do this and then all is well!

May not be any use - but easy to check for big results if it works!!

D.

[GeorgeS2UK]

sound's like the problem i had after i had a top end rebuild

turned out to be temp sensor on the back of the head

hope that help's a bit

ray

Thanks for that Ray

Unplugged, Cleaned and refitted and so far seems better, maybe just not seated correctly after the rebuild, I will know for certain tomorrow on the next cold start

George