please help
Thread Starter
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New User
Joined: Nov 2010
Posts: 1
Likes: 0
please help
i have a 91 ford f250 5 speed and the check engine light stays on so i ran the ecc test and it came out as 998 126 118 i have no idea where to start looking for the problem the codes read
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engine control system running in failure mode for 998
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map preasure sensor voltage to high for 126
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engine coolant sensor voltage to high for 118
i am really hoping to not replace the ecc if thats what is wrong someone please help explain whats wrong
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engine control system running in failure mode for 998
/
map preasure sensor voltage to high for 126
\
engine coolant sensor voltage to high for 118
i am really hoping to not replace the ecc if thats what is wrong someone please help explain whats wrong
Elder User
Joined: Jul 2010
Posts: 506
Likes: 0
Check all your grounds. There are several of them and check all leads going into the computer. I had a bronco once that was spitting all kinds of codes, and I found an inline fuse to the ECU blown, and corroded grounds.
