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Discussion Starter · #1 · (Edited)
I have an 88 5.0 that I did a MAF conversion. I followed the instructions on corral.net and stangnet.com to a T. I've double and triple checked the wiring and its correct. I'm using an A9L computer and when I try to start it it will turn over hit about 1500 rpm and then die. If I unplug the MAF sensor it will start up idle at 1200 - 1500 for 2-3 seconds and then jumps up to 2000-2500 rpm and stay there. Giving it gas just bogs it and or kills it. I've tried getting the error codes from the STO STI but it gives me a constant five volts. I'm not sure what that means. I have two A9L computers and they both give me the exact problem for everything.
*edit* I finally got some error codes I'll start to track those down but any info you have would be great*
Thanks in advance for any help you can give.

Mike
 

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what meter are you using? maybe its the sensor itself
 

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Discussion Starter · #3 ·
It was a stock Ford MAF sensor. I just replaced it went out and bought a new one with no change.
 

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Did you verify continuity of your new MAS harness, with a meter? Maybe the splice didn't make connection. Check continuity from the big EEC connector to the small MAS connector. Sometimes the connector pins will move up a little and don't make good connecting with the EEC.
 
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