Ignition Question w/EFI

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put a new/used EEC and wire harness the junk yard said it worked when tha take it off of the car,for my 90 mustang lx 5.0 i had a problem with it stall out after flooring the gas padle, and run rich all the time after replacing the coolant temp. sensor, think it will solve my problem, now the engine will start and run at high idle for about 3 second then cut off

posted by  mustang90LX50

What is a new/used EEC?

posted by  srober32

eec is ford computer.

posted by  thongsai

How is it new/used, it is either new or used.

posted by  srober32

I'm just guessing here, but maybe he means... used-- from junkyard but.. new to his vehicle-- in other words, not HIS old one.
Why is it we have to figure out what somebody is saying???
Seems like they would just say it themselves. :screwy:

posted by  thefonz

It might be bad from the boneyard, take it back get your money and buy a new one or better yet have them both tested to see for sure. Lots of parts stores do testing on electronics for free 'cause they want you to buy parts from them. BTW make sure the chips are the same color.

posted by  srober32

Dude, did you check out what I told you to? You posted about the MAP sensor earlier and I told you to make sure you have the proper ECM...I'm guessing my advice went right out the window.

posted by  Sick88Tbird

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