I have a 2001 VW golf auto with a 1.8L turbo engine. it starts and runs fine for about 5 to 10 seconds and then starts running badly and dies. when running badly, it does not respond to an increase in the accelerator pedal. i suspect the ECU is malfunctioning, but the dealer states it can't be tested for malfunction, only eliminating all other sensors and probable causes. if those appear good, then it must be the ECU and replace it. This does not sound like a good engineering solution. Surely, a test exists for the proper operation of a ECU. can someone help? Also I have confirmed the engine speed sensor ,camshaft sensor, coolant temperture sensor, intake air sensor are all o.k. I have ordered a MAF sensor as a last ditch effort to fix this problem short of buying the ECU/ cost of $500 or more. again i need HELP.