engine light help please
 

hello, i have an 89 deville that i just picked up for 250 bucks at an auction and would be a bargain at 4 times the price, but it does have a few quirks... the check engine light is on, and i tried to use one of those diagnostic computer dealies but it wont transmit. i was hoping that someone here could tell me how to pull the codes with the paper clip trick. i have seen it done before, i just dont know what holes to put the paper clip in. any help would be welcome. thanks

RE: engine light help please
 

This link is one of the best, I think it has a schematic on what you want to do.

http://myweb.accessus.net/~090/toc.html#cad

RE: engine light help please
 

well thank you. that is very helpful

RE: engine light help please
 

well i pulled the codes, and i got e22, (open throttle position sensor circut) e52 (ecm memory reset indicator) e67 (shorted set or resume circut) and then f8 (spark plug advance xx degrees) then e9.5. anybody know what that means?

RE: engine light help please
 

F8 - bcm. no codes, 9.5 ecm overrides

RE: engine light help please
 

so is any of that stuff serious?

RE: engine light help please
 

E22 ....is it a 4.5 or 4.5 pfi?

RE: engine light help please
 

thats a good question... i'm not sure. i will take a look when i get out there next