Computer problem
 

Took my 89 5.0 to the shop to see if it was throwing any codes. They hooked it up and nothing.....they tried two different systems and still no response from my computer, as if it was not there. I bought the car recently and was runnig down the idle problem. Any ideas why my computer is not being recognized?

RE: Computer problem
 

Possibilities:

- Bad ECM
- SIGRTN wire open
- Wiring problem (STO circuit)

You might want to check the problem description and how to check for a "No Codes" condition at http://fordfuelinjection.com/index.php?p=44 ....the results of the tests will give you the information to ID what's at fault. My 2¢.

RE: Computer problem
 

well i had this problem also swapped ecms now everything works....go figure huh?

RE: Computer problem
 

This should do the trick, thanks for the link.

RE: Computer problem
 

Where did you get the replacement ECM?

RE: Computer problem
 

lol junk yards and swap meets.

RE: Computer problem
 

BAD ECM


Send it out for repair !

$49-60 repair, takes 5 days to get back.

RE: Computer problem
 

where the hell is this at?....ford only part,and yes they still control the part number i have asked many ford shops

RE: Computer problem
 

Do I have to match the same year, or can I use any 5.0 Fox?


Who does the repair?

RE: Computer problem
 

if auto any auto mass air car...manual any auto/man mass air car...89-93....88 cali...no 94/95's