Mitsubishi 3000GT During it's production run, and after, the 3000GT was a pure sports car offering forced induction and all wheel drive, as well as smooth aerodynamic styling.

ECU won't communicate

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  #1  
Old 03-28-2008, 08:25 AM
lord_of_biscuits's Avatar
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Join Date: Dec 2007
Posts: 15
Default ECU won't communicate

I have a 92 non-turbo and I had a lot of trouble with different thinks not working right. Like the cooling fans never came on and the idle was about 2700rpms. So I replaced the ECU and everything started working great. But for some reason once it warms up and idles at 800rpms the check engine light comes on. I sent it to the shop and they said the ECU won't communicate. Anyone ever had this problem?
 
  #2  
Old 03-29-2008, 09:20 PM
Join Date: Jan 2008
Posts: 13
Default RE: ECU won't communicate

I have a 94 stealth that once it got warmed up it would shut down. once it cooled off it would start again but once it warmed up it would quit running. After having carefully checked out it turned out to be the ECU. I had it rebuilt and all has been fine since.
 
  #3  
Old 03-31-2008, 10:23 PM
jgbrules's Avatar
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Join Date: Feb 2008
Location: houma, louisianna
Posts: 346
Default RE: ECU won't communicate

hello!! did you have the ecu replaced with a rebuilt unit?? those things are pure crap!! i have installed rebuilt ecu's out of the box and car wouldnt crank, or had idle probelms, check engine light on.ect,ect,ect.... save your money and buy a factory unit. save you ALOT of headache!! if you can get a code out of it, more than likely it will be #41 injector. classic sign of craped out rebuilt ecu!! good luck!! greg...
 
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