My 1992 940 turbo wont start -intake hose problem?

TomR · Post by **TomR** » 11 Feb 2006, 12:08

My 1992 940 turbo wont start after some minor maintenance. While replacing a vacuum line on my 940 I noticed the bottom of my air supply hose was kind of thin and creased along the bottom. This is the hose that goes from the air cleaner box, through the AMM and connects to the what I believe is the wastegate. I could not see if there was a hole in it or not. I don't have a hose to replace it yet so I taped it up the best I could. After finishing this, the engine will not start.

I've tried cleaning and reconnecting the electrical connection that plugs into the AMM and the other one near it but this hasn't helped. The engine runs very rough or wont start at all.

What did I do to keep my car from starting? Did I break or bump something that could have caused this? Any ideas what could have gone wrong here?

Thanks,
Tom

Kmaniac in California USA · Post by **Kmaniac in California USA** » 11 Feb 2006, 20:46

Try starting the car again with the AMM disconnected. This will set the computer in limp mode. If it seems to run better, something may have broke in the AMM during your fix. Beyond this I can offer nothing more.

TomR · Post by **TomR** » 11 Feb 2006, 23:43

Kman-
I'll try it and hope that it works because I'm pretty baffled. Thanks for the input.
Tom

TomR · Post by **TomR** » 12 Feb 2006, 20:55

Engine wouldnt start with the AMM disconnected. Tried starter fluid but no help. I do have spark and the plugs are wet. I took the throttle body intake hose off and the engine started but ran very rough.

What next???

TomR · Post by **TomR** » 13 Feb 2006, 21:36

Not sure what I did but it's running now. Poked, prodded, and checked a lot of different things and the car runs fine now. Cleaning the AMM may have helped the most. When I took it off and looked inside, something fell out. It looked like a small piece of wire so I thought the element had broken and that was the cause of the engine not starting. Turns out it was a very small twig. It got inside the AMM somehow and perhaps was resting on the wire element inside. ........I don't know but the engine runs fine now.