Cold start and running problems with 02 1.8T Passat

I posted some time back about the cold start problems we've had with our

2002 1.8T Tiptr "Checked to confirm customer's concern, tech installed reader to check DTCS and found 3 fault codes P0300, P0301, P0302 called techline talked with Fred Eldorado, run test and then clean upper intake, completed fuel clean, cleared DTCS and test drove to ensure repair."

FWIW, they did a 20012940 "Clean fuel system."

It ran fairly well for a few days and then the startup miss returned. The miss was usually subtle, but now the big problem was that when my wife pulls out of the driveway in the AM on the way to work, the engine loses power and cuts out as soon as she hits the accelerator to move out into the traffic. You know the feeling... you step on the gas and the car slows down instead of speeding up. Classic fuel starvation, I assume. The check engine light flashes and now is on permanently. Yesterday she was driving back from a hilly part of the state and said the the car would miss going up hills even with the engine warm.

Anybody got any ideas that might help out the service dept? This dealership is very friendly and accommodating. So far they haven't charged us anything, either. However, they are a relatively new dealership with what I think are inexperienced technicians. In my opinion, they ought to replace the thermosensor just to remove that variable especially since it's an inexpensive part. And, it's a 160 mile round trip to get there and back so this is getting tiresome, especially if we have to leave the car. FWIW, we've always put high test Shell or Chervron gas in it, and it's had all the routine service at the dealer.

Bill

78 Rabbit...10/77 - 4/02 82 Convertibles(s)...since 93 95 Golf GL...since 11/99 02 Passat 1.8T Tip GLS...since 4/02

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Reply to
William Maslin
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Couple things come to mind I would check it's in our shop.

1-see if ECM needs flashed with latest software 2- vacuum leak in one of the hoses 3- P0301 & P0302 are for cylinders #1 & #2. 4-If all the ECm data looks within spec then I would try and replace them 2 coil as an educated guess.

Reply to
Lost In Space/Woodchuck

Ran into something odd on older VW, same symptoms as yours. Turns out there was garbage in the gas tank. As the vehicle went on an incline, the garbage headed for the pickup tube. Similar when accelerating. Only cure is to pull the gas tank and flush it out, and dry it for 24 hours. If there's a good amount of rust, suggest replacing the gas tank.

Reply to
Jonny

VW tanks are plastic.

Reply to
Lost In Space/Woodchuck

How is that Cabby running these days? Greetings from another old timer :)

best regards, Peter T> I posted some time back about the cold start problems we've had with our

Reply to
Peter Tong

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