ecu help!
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New User
Joined: May 2016
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ecu help!
hello, 1994 bronco witha 5.0 to 5.8 swap from previous owner. the ecu is the suspect on a diag. its shutting the engine off when a test light was hooked up and a code was told that a ground in the ecu was gone. my question is do i get a 5.0 or 5.8 ecu or it does not matter? thanks so much this is driving me nuts!!
Fleet Mechanic
Joined: Dec 2006
Posts: 1,925
Likes: 10
From: Phoenix, AZ
If you have the 5.8 engine in the truck, you'll need to get the 5.8 computer. The previous owner most likely had a 5.8 computer in there but I suppose it's possible he could have have the 5.0 computer tuned to run the 5.8. However, tuning that would be way too much money and effort. Probably quite a bit more expensive than just getting a 5.8 computer. If there are any identification numbers on the computer, you should be able to look it up and see what motor it is for.
So yeah, if you know it's a 5.8 motor, look for a 5.8 computer to get!
So yeah, if you know it's a 5.8 motor, look for a 5.8 computer to get!
Fleet Mechanic
Joined: Aug 2002
Posts: 1,563
Likes: 33
From: Swansea SC
I am sure if it is still on the truck there is a white tag near the door hinges that gives the original computer info. Also you can use the vin number to code what engine. Since it was swapped to a 5.0 Rock auto sells them and BEWARE!!!!!!! if you use one from a salvage yard, check the capacitors for CORRISION. They have cause many of us grief including myself.Good luck TR
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