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1G Trnasmission stuck in limp mode

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90_AWD_Thunder

Proven Member
45
4
Jan 18, 2015
Madison, Wisconsin
Ok, just got link and installed that get ready to tune and found my trans is in limp mode. When I hook up a scan tool to pull the codes to see if there is a problem there I cant get any communication to the tcu but I can link up with my ecu. Checked the fuse it is good (replaced it anyway just in case) now I am led to a broken/shorted wire or bad tcu. I pulled the tcu and there is some corrosion around one of the capacitors leading me to believe that the tcu is junk (it actually looks like the cap leaked. So, I don't know where to go from here and I will ask if anyone has a good tcu as I cant find any place that can repair them. Any help would be appreciated.
 
Have you asked Thomas at ECMLink about repairing your TCU? I don't know if he does but he is very knowledgeable and might know someone if he can't repair it.
 
I would just remove the TCU and get a sift box from road surge. From what I have seen in the pass it will cost more to have the TCU repaired then just getting the shift box:thumb:
 
Yes I did check with ecm link and no he can't repair it. And I did think about the shift box but I want to have the option of full auto and manual where the shift box would only give me manual
 
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