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New ECU won't change gears.

7K views 1 reply 2 participants last post by  onryboy 
#1 ·
I have a 95 ranger with a 2.3L, I4, 2wd, auto trans (I know it's the Mazda engine). I had a problem with a faulty fuel injector, but tracked it to the ECU. So I changed it, well now my tranny is stuck in 3rd gear. (didn't have the problem before) I looked up the part number from 4 different auto parts stores and all have the same part number. (cardone #78-5961). I tried two different ECU's and same issue. On a lite note though, my fuel injecter problem is fixed. Is there a version for auto trans? Or can someone know the correct part for my problem?
Thank You
Doug
 
#2 ·
Hi Doug,

A-1 CARDONE Part # 785961 {[Engine Control Computer] Remanufactured. Requires VIN reprogramming at installation}
w/Calibration 5-49A; Parameter Reset May Be Req'd After Install if Modified Vehicle.;Emission Calibration\Tear Tag On Front Door Jams, in Trunk, or Under Hood.;Calibration Pre-Flashed at Factory.

Time for a trip to the dealer for VIN reprogramming
 
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