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Hi guys,
History of the car : Vw Golf 2005 2.0l n/a BLX motor.. customer went to hes mechanic and replaced the altenator 2 months ago due to bearing noise. 2 weeks later no start in the morning - battery drained . they replaced the battery with a new one and 2 days later it drained the battery again, so the owner jump started it but the car never started ever since. hes mechanic played around with it and he also got a electrician that couldnt find the problem. I was told by his mechanic that it has blowen that 200amp fuse ( alternator fuse ) and that he has jumped the fuse with his screwdriver but the car doesnt start..
I have found 2 battery drains : 1gloves box light stayed on and 2 the wires going into the drivers door where broken and shorting out.
there is a 5v reffernce circuit
no spark
check powers and ecu grounds and found okay
I sended the ECU to a electriacin that backyard repairs because I quoted me less than the others and he was the only guy that told me that he needed only the ecu and not the key - key reader and cluster as well
ecu came back to me , pluged it in and once I turn ignition on I heared a pop in the ECU a the car still doesnt start
This time I have open it my self and I saw that it had bloow up a transistor.
I send it back for another repair and 10 days later he brings it back, we pluged it , no funny sounds this time but still no start..
The electrician suggested to replace ECU - KEY - KEY READER - CLUSTER - BCM, because as he says it can be anything..
I just cant buy that idea!
I am thing of maybe sending the ecu to another repairer to get it checked out . I am loosing my sleep over this one...
Am I missing something? Any suggestions?
this photo is after the 1st repair right after I plugged Ecu on and turned ignition on. what I noticed is that the part numbers are different, that means he put different parts both times
Wow that looks horrible I think you should look for a used ecm as that thing is probably fried from solder cross bridging onto other circuits someone used way to big of a soldering iron for that repair!
Yes that was a horrible repair when done right it's hard to tell the difference from factory your repairman had no business in an ecu that might fly in a old tube tv but not an ecu!
I would try and communicate and see what modules you can connect to. if you can't connect to any them unplug the ECU and try communicating again with all other modules. The ecu controls the check engine light however another module can stop it from working if its messing with k line or maybe the can lines. Replacing the ecu is easy but getting the Skc from the old ecu or cluster/ immoblizer box requires vag k+can or vagtacho You will need the skc out of the old and new/used ecm and Vcds to login into to the module and do the adaption. I would also wonder if the Alternator is bad from it all starting from the replacement of it.
Another option is buy a used ecu from ebay and there is also a guy on there who will swap the old eeprom chip into the used ecm for $60 which will make it plug and play or he can turn the immobilizer off.
Hi guys, car is running now. It was the ecu as I first thought! the guy that done the ecu repair had no idea what he was doing which turned me into the wrong direction thinking I missed something. Pretty much I have striped the whole trying to find a ghost. ..
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