Help I screwed up!
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Joined: Aug 2004
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Help I screwed up!
I forgot to disconnect the battery cable when I was checking an egr connection on my 1992 f150. I accidently grounded out the connector and now when I try to start the engine it will not start. I must have blown a fuse or relay but I dont know how to find out since the check engine light will not come on and I am unable to pull codes either. I hope I didn't fry the computer Unfortunately my truck is stranded in a parking lot in an undesirable location. Any help appreciated!
Moderator
Joined: Jan 2001
Posts: 56,984
Likes: 2,738
From: Virginia
Here's a diagram for your truck if you have a 5.0 or 5.8. It shows you have maxi fuses which should be in a fuse box under the hood.
http://www.autozone.com/images/cds/g...3d800a3a54.gif
http://www.autozone.com/images/cds/g...3d800a3a54.gif
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
I'll assume you have a "Cranks but does not START" condition.
Probably lost PCM power since the CEL won't come on. Fuel pump likely isn't running either at initial key-on.
Focus on maxifuses "I" and "U" and the PCM POWER relay first.
Since you did short out the EGR line, I'd suspect maxifuse "I" first, then the relay.
Steve
Probably lost PCM power since the CEL won't come on. Fuel pump likely isn't running either at initial key-on.
Focus on maxifuses "I" and "U" and the PCM POWER relay first.
Since you did short out the EGR line, I'd suspect maxifuse "I" first, then the relay.
Steve
Problem fixed
