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2G 4g63 no start, possible ecm failure.

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Mrjelks92

Probationary Member
9
0
Oct 5, 2013
Breese, Illinois
Noobie to 4g63 here.
Long story short, bought a barn find tsi awd. Installed new clutch and transfer case and started driving. Few hundred miles down the road motor mount breaks and engine drops, no biggy right. So while I'm in there I do both timing belts and replace the mount and now she wont start.
Simple: Timing/fuel/spark testing. So I started by double checking my timing, she is all good, couldn't figure out how to check fuel pres. so I skipped to spark. I have no spark so I did some research got pin outs on the CAS and ECM. I have got my 12V supply to the CAS and good ground but my signal is at 9V!? Very strange seeing as it should be a 5V ref. Unplugged the ecm and ohmed my wires for any shorts to power and found none. So I'm thinking my ecm is internally shorted. But I'm no dsm god by any means, so any input before I go on the hunt for a new ecm would be greatly appreciated. thanks guys.
 
I hooked up my scan tool to it, and it wont detect the ecm, which is why I'm leaning more that way at this point. I'm going out today to borrow a buddy's ecm from his 97 gsx. Really hoping that I am wrong and not in need of a new ecm.
Thanks for the advice.
 
Thanks a million for that link. I turned the key on and never got my engine light on. Followed a few more steps and long story short my ecu is on it's way from Michigan.
 
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