ECU PROGRAMMING:I drive a passat 1999 1.8T; with a faulty ECU (8D0 907 558 E) D03, I have tried to programme a new ECU (8D0 907 557 P) D02 into the car; but the car starts and shut down immediately. What am i not doing correctly please? Do u think the two ECUs are compatible? Must i get an exact ECU for my car to work again? Please help me out

SOURCE: VW Passat Key Programming

U just have to re program your key, that is the normal thing that happen when u try to star the car with some key with the same code that the car.No worry is not any problem engine.

John Weathers

• 409 Answers
• Posted on Dec 29, 2008

SOURCE: My 99 Passat wagon turns over but will not start (cold weather)

Pull out your spark plugs and check for fuel fouling. If they are fouled replace them. If it was badly flooded you may have to shoot a little oil into the spark plug holes then turn the engine over with the spark plugs out. Reinstall plugs and it should fire off. Good luck.

SOURCE: Same problem

throttle is probably going out you can try to clean it but they are usually bad when the epc light is on

Bobby G

• 212 Answers
• Posted on Aug 07, 2009

SOURCE: CAR STARTS BUT IMMEDIATELY DIES. CHECKED FUEL

Please turn the ignition on (not onto the start position just on to get the ignition lights to come on) and observe the yellow immobiliser light on the dashboard when you first turn the ignition on - Does it come on and stay on or does it come on and flash or does it come on and then go out? This sounds like an immobiliser issue, the ignition key has a chip inside it that has a code which is recognized by the engine ecu and if this recognition does not happen it will fire up and immedialtely cut out. The batteries in the key are for the remote central locking only. The chip is electronic.Try a spare key if you have one

SOURCE: low pressure exhaust sensor faulty on passat 57

If you have low pressure in the exhaust manifold, then there would an exhuast leak somewhere from the exhaust manifold to the tail pipe. These leaks tend to get bigger over driving time. It may be the exhaust manifold gasket, or a crack in the manifold. Give a good listen for a sputtering sound. Part of the exhaust pipes have to be removed for access to the manifold. A good spray of PB breaker will help a lot with the bolts here.
Escaping gas is bad for the environment. This also causes gas to enter the manifold and make its way to the valves. The temperature of the incoming air is very cold compared to the combustion chamber and can cause damage the your valves by stressing them.
If you find no leak, then you may consider the sensor may be faulty or the leak is very small.
Good Luck.