high idle on start up, shut off, now wont start

[in2thenightaudi]

This morning I started my car and let it warm up for a minute or two, then drove about 4 minutes home from my girlfriends. About 45 minutes later I go back out to my car to head to work and I start it. Starts fine, but after a few seconds of normal idle, the rpm's jump up to about 1250. They stay there for about 30 seconds, then drop down to about 1000 for a few seconds then go back up to 1250 or so. I put it in 1st, start to let out the clutch and the car shuts off.

Now the car wont start. Don't know if this is the proper terminology, but its trying to turn over, it just never starts. The volt-meter is showing 12v's. I've had a CEL for a few weeks and had it read saying it has a bad EGT and coolant sensor. Could this be related to that?

I don't have vag-com myself, had to take it to Pure-MS to get read. Guessing I need to get it towed back there to have them take a look at it. But any help in the mean time would be greatly appreciated.

[A62TURBO]

It seems like a CTS issue, you should replace that first and take it from there.

[in2thenightaudi]

Thanks Greg. I'll swing by the stealership (or maybe Pure has them in stock) and grab the $20 part. Hopefully that will get it running again, even though I'll still need the EGT's at about $400 or so. Heard they are a PITA to replace, so might have Pure handle the EGT.

[A62TURBO]

No problem, from the sound of the problems you're having it's most likely the cts. Hopefully that gets you up and running again.

[Siricospeed]

I had the same problem when the throttle body failed. a quick scan should enlighten you.

[A62TURBO]

He did have it scanned and bad CTS and EGT codes came up.

[Siricospeed]

He did have it scanned and bad CTS and EGT codes came up.

Darn, I have to pay more attention!

[in2thenightaudi]

replaced the CTS and the car started! talked to Mike at PureMS when I picked up the CTS and he said that a bad CTS shouldnt cause the car not to start. he mentioned spark plugs and i looked through my records of the car and dont see spark plug replacement on any of the receipts. then again, i couldnt really read half of the items on the receipts from the previous owner. might want to replace them soon.