My Ecu is done where can I get another. I went to dealership they are out indefinitely. Looking to get some guidance. I contact a few places that does cloning but I'm not sure if that is the right move. Please any help need to get car on road again.

I believe ecu is done because car is jerking bad no gauages are working. Car is running rough.

Thanks guys in advance

 

Has the dealership definitely diagnosed it as an ECU issue? Are you tuned?
ECU is not a common part to go "bad". It's a lot more likely to have bad wiring, blown fuses, and other electric issues, before your ECU.
Have you checked junk yards?

 

As mentioned, the ECUs are generally very reliable. The symptoms you describe have many possible causes.
Do you know what any of the trouble codes are?

If you do need an ECU, I am 99% certain Eugene at Enthusiast Auto Care (https://www.yelp.com/biz/enthusiast-auto-care-concord ) will have some used ones in stock and can even program it for you.

 

I did not get a diagnostic thru the dealership. Doing some research and asking people and the dealership confirm it may be the ecu.

All of the systems being gauges not working, car jerks in in all gears. Starts jerking aT 2500rpm. The car has a really rough hesitation battery drain. I had taken out the ecu and noticed some dry white stuff on the ecu as it looks like water had gotten to it. I lifted up the passenger carpet and it was a puddle of water under there.

 

I checked all fuses and they are good. The dealership told me that I needed the exact serial/part number in order for it to be a replacement which I am not sure about.

Also the car is hard to start. I had to hit the start/stop button several times before the car would even shut off.

 

I have good news and bad news for you:
• Good news: Your ECU is fine!
• Bad news: Your BCM (body control module) may be damaged from getting wet. (sunroof drain leak)

If you have an OBD scanner, the codes would be helpful for us to try to help further.

When you say you "checked all fuses" does that include all three fuse locations?
• Driver's side floor well (on left "wall") Behind a small plastic door (aka fuse block / junction block)
• The 10 amp fuse 4 is what powers the gauge cluster
• On the battery positive terminal
• On the IPDM/ER tucked beside the battery

 

Thank you for your reply. Yes I checked all my fuses. At all three locations. I have found a bcm online with my serial number I am going to buy it and hope it fixes the problem. I will update you guys. Again thanks for input.

 

Nice... Not many G37 owners seem to know about all three locations.

The replacement BCM will need to be programmed with your existing "intelligent" keys or it won't start.
If you do a search here, you will find a post of someone who used NDSIII to program the keys, saving a trip (tow?) to the dealer or locksmith.

 

Good job, men. Well done here.

 

Any updates?

 

I can send you an ecu if you end up needing one. PM me

 

I had the same issue with water, car jerking, christmas lit up dashboard etc! Any help?

 

just read what’s been said up bro… check your BCM on the passenger side. And don’t forget to investigate where is the water coming from if it also got damaged that way