Ok I’m about to give up on that. Maybe someone will solve it. I have an automatic golf 2003 2.0 gaz. I bought it a month ago. The seller told me that he changed the battery and the starter, seems to be true it looks brand new. The day after that the car is not starting. It’d crank and crank and crank but nothing. But it was nice crank! No starter or battery issues. Than I do it again!.. nothing …after 4 time cranking for 10 second it seems to be catching up but than nothing. And thaaaan the car start but stall immediately… I try again and it finally catches. After that I barely press the gaz pedal and it stalls again. I start right up the engine no problem and let run for 2 minutes befor living and everything is fine I can use my car 2 hours later it will start. The next morning I bring my car to a garage (car didn’t start) i had to call a towing… and they tell me that there’s a problem with the fuel pump and it’s better to bring it to scrap he also told that the car has not catalytic. So they took a propane tank and spread it in the engine, and turn the key the car start right up! So easily!!! As the guy was towin the car, a friend of mine calls me. expert in vw cars tells me not to put it to scrap that he would check it! He scanned it and there was these codes
In this order:
02 sensor heating circuit bank 1 sensor 2 short
02 sensor bank 1 sensor 2 heating circuit malfunction p0141
Load calculation cross check upper limit exceeded p1143
Coolant temperature sensor signal too high p0118
Intake air temperature sensor signals too high p0113
Mass airflow sensor signal too low p0102
Random multiple cylinders misfire p0300
Miss fire in cylinders 1,2,3
Camshaft position sensor not a plausible signal
Engine rpm sensor not a plausible signal p0321
Sooo my vw expert friend told me immediately that it was the crank sensor (rpm sensor)! I bought one, he installed it. It didn’t solve the problem. Than I changed the fuel pump and the fuel filter. It didn’t solve the problem. I changed the maf!!.. it didn’t solve the problem… than we scanned the car again and all the codes was still there even if I changed the rpm sensor and the maf sensor. It was ridiculous. Than an other guy working in a car parts shop told me that it was a domino effect… if the camshaft position sensor doesn’t works the rpm and the maf wont work neither! So I changed it to! And alllll misfires codes and maf codes and rpm sensor codes and coolant shit codes EVERYTHING was gone but 02 sensors. Due to the fact that I dont have a catalytic on the car. BUUUUT it didn’t solve the problem neither… the next morning I experienced the same annoying problem. The car would start if the temparatur was no that cold but after 20 cranks.
My vw expert guy came to my house to change the spark plug. The car didn’t move in a week when he came. Before he changes the spark plugs, By curiosity I sit in the car and crank the engine…VROUUUMM one shot it started!! I was confused!! Than he changes the sparkplug and right after I sit again in my car and…nothing …same problem… seems that the car was happy that day but not for long but… after a week parked?? He was just as confused as I was. He never saw something like that, oh and important to mention. Everytime I tried to start the engine I did the "key dance "thing. Turn on ignition on and off several time to built a pressure in fuel line but…nothing. this morning I unplugged the fitting on the fuel line right beside my engine and turned the ignition on and a nice and clean splash of fuel popped up from it.
And here I am today!! Almost giving up on that! Maybe the coil pack? but I have no misfire left now since the new camshaft position sensor. Maybe a leaky fuel injector I’ve been told and maybe a bad ecu… can someone help me???I’ve headaches just thinking about it.