ecu capacitor corrosion?
Fiya3000GT
05-12-2005, 04:27 PM
I've been having very random engine stalling in my 92 3000gt SL. It will run for a few days problem free. After the car stalls and fails, the engine will crank and sound normal, but I have observed that there is no spark from the coil. Letting the car sit for 15 minutes or so will remedy the problem, but the car is more likely to stall again the less time it is left to rest. The failure always occurs while driving, never at stop.
I opened up the ecu and discovered the following corrosion:
http://www.my-rdas.com:81/rdas/logo/temp/ecucloseup.jpg
It's small, but could it be the culprit? The corrosion seems quite minimal compared to the examples I've seen. Could the problem be triggered by heat? I'm good with a soldering iron and could easily replace capacitor.
Thanks
I opened up the ecu and discovered the following corrosion:
http://www.my-rdas.com:81/rdas/logo/temp/ecucloseup.jpg
It's small, but could it be the culprit? The corrosion seems quite minimal compared to the examples I've seen. Could the problem be triggered by heat? I'm good with a soldering iron and could easily replace capacitor.
Thanks
Fiya3000GT
05-13-2005, 03:15 AM
Update:
I took it out for a test ride with the computer sitting on the floormat (to test if it was failing due to heat). The car ran for about 10 minutes before it failed. Needless to say the computer was very cool. Also, unplugging/resetting the computer did not remedy the fact that I could not start the engine again.
Thanks.
I took it out for a test ride with the computer sitting on the floormat (to test if it was failing due to heat). The car ran for about 10 minutes before it failed. Needless to say the computer was very cool. Also, unplugging/resetting the computer did not remedy the fact that I could not start the engine again.
Thanks.
CHRIST75
05-14-2005, 12:10 PM
I don't remenber where i red it but Capacitors don't have to get to leak to get bad , it could looks good but starting to have problems, leaking is just a sign that it's about die already .
I'd change them all three right away, even if they are not the problem,
those capacitors don't have not much life left and they could damage your comp .
http://www.stealth316.com/0-frames.htm
Under ECM Removal and Inspection in the
Mitsubishi 3000GT/Dodge Stealth
on the garage section shows you the values of caps, 3si sells them too.
Chris
I'd change them all three right away, even if they are not the problem,
those capacitors don't have not much life left and they could damage your comp .
http://www.stealth316.com/0-frames.htm
Under ECM Removal and Inspection in the
Mitsubishi 3000GT/Dodge Stealth
on the garage section shows you the values of caps, 3si sells them too.
Chris
Igovert500
05-16-2005, 08:53 PM
Don't know if this will help or if you already have all this figured out, but I'll post it anyway:
http://monninengineering.com/ECUrepair.html
http://www.tmo.com/howto/ecu1g/caps.htm
http://monninengineering.com/ECUrepair.html
http://www.tmo.com/howto/ecu1g/caps.htm
talskinyguy
05-16-2005, 10:04 PM
Replacing the capacitors should be fairly easy, but it looks like you will need to repair the traces on the board as well as replace the capacitors. I dont know how to do that or I would offer more info.
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