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Car Forum / Volkswagen / Water Cooled Volkswagen Cars / December 2006Passat Cutting Out
I have a 2002 2.0L petrol passat which suddenly cut out on me whilst driving home today. Fortunately I managed to pull over to the side of the road but after that every time I tried to start the engine it would run ok for about 1 or 2 seconds and then cut out again. When the RAC eventually arrived they couldn't figure out what was wrong. No fault codes were showing up and no problems with the fuel supply were evident. Thus, I had to be towed home. The really annoying thing is that I only had it serviced yesterday with a VW dealer which included a cambelt change. I don't know whether this is related or just a coincidence since the 10 mile drive home after the service was just fine. Any ideas what could be wrong before I contact the dealer first thing on Monday? > it would > run ok for about 1 or 2 seconds and then cut out again. That sounds like it could be an immobiliser fault. Could be the key or the pickup coil for in near the ignition switch. That's exactly what you get if you try to start the car with a key not coded to the immobilzer: It will fire, run, then die. >> it would run ok for about 1 or 2 seconds and then cut out again. > [quoted text clipped - 3 lines] > That's exactly what you get if you try to start the car with a key not > coded to the immobilzer: It will fire, run, then die. If the key is not recognised the car will not start at all. It will beep at you and flash the immobilser light. Also the immobaliser functionality should be disabled when the engine is running to prevent the car cutting out mid journey. Your problem almost sounds like a blocked exhaust pipe. Get someone to check the exhaust for the brief period it does run. May be the cat has broken up inside. But I would have thought the AA man would have spotted that. Paul >>> it would run ok for about 1 or 2 seconds and then cut out again. >> That sounds like it could be an immobiliser fault. Could be the key or the [quoted text clipped - 13 lines] > > Paul Might be different on the Passat, but with our Lupo, I have a key which is physically cut but the transponder chip isn't coded (long story...). With this key the car will start and run for about 1 second. Not long enough to drive away though, so there isn't a safety issue. Put one of the coded keys in and it starts and runs as normal. Blocked cat is possible though, as might be a dodgy fuel pump or relay. If the pump primes as normal when the ignition is switched on, but doesn't then run as it should once the engine fires, the loss of fuel will stop the engine. > I have a 2002 2.0L petrol passat which suddenly cut out on me whilst > driving home today. Fortunately I managed to pull over to the side of [quoted text clipped - 7 lines] > the 10 mile drive home after the service was just fine. Any ideas what > could be wrong before I contact the dealer first thing on Monday? In the end it turned out to be a problem with a vacuum hose that had become detached. |
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