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Subject says it all really..... it seems to happen within ten mins of starting, speedo shows zero for a few mins, then returns to normal and stays OK. There is a loss of power when the speed indication drops and the MPG indicator shows a decrease in MPG (as you'd expect I guess). The power loss isn'...

I'm very grateful for all the help I've had on this. To round it off, this is what I think has been happening - I bow to experience so please correct me if I'm wrong! I think the MAF sensor was unable to tell the ECU the actual amount of air passing it. I think that because it was dirty it under rep...

Posting to my own thread again! Before swapping the MAF sensor with one I located at the scrapyard I thought I'd dismantle the current one, save time struggling in the mud at the scrappy - took the sensor off, and it looked OK, but obviously not sure what I'm looking at. Nothing to lose by giving it...

Thank you Legoless..... Here we go: The large flexible boost pipe does indeed swell when revs increase. I can feel it pushing if I squeeze it. Hmmmm. I disconnected and blanked off the EGR solenoid as you suggested - very little difference if any. I removed the MAF sensor connector - big difference....

The turbo effect was produced at higher and higher revs - then not at all. It still drives, but as you'd expect - sluggish. No warning lights; no oil used; no horrid noises; no smoke from exhaust. The car drives normally until the point - around 1800rpm I believe - where the turbo should actuate, bu...