No codes
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Joined: Nov 2005
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From: Mountain Home AR
No codes
Last week my 86 4+3 started running bad, and my service engine soon light came on. I put it away in the garage and that night I started it up again. Run fine, and no service engine soon light. I used the paper clip to A-B two different times and both times all I got was SERVICE ENGINE SOON. As far as I know, I did it right!!!! Put the clip in A+B ---turned the key to on----and waited each time for a few minutes. Why not any codes. Is somthing wrong with my ECM or what???
Team Owner
Joined: May 2002
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
So... you jumpered A to B
OOOOAB
OOOOOO
And then turned the key on. And the light didn't flash morse code at you? The electric fan didn't come on, or the overdrive light come on?
Sounds like your jumper wire isn't making contact.
OOOOAB
OOOOOO
And then turned the key on. And the light didn't flash morse code at you? The electric fan didn't come on, or the overdrive light come on?
Sounds like your jumper wire isn't making contact.
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From: Mountain Home AR
No code
SORRY----My fan----OD light----and door ajar is on, plus the SERVICE ENGING SOON LIGHT blinks on and off. That is all that happens. I just went out and checked it again??? So it sounds like my ECM?? What now?? How do you tell if the lights are working? Dave
Last edited by Dave-B; Jan 7, 2006 at 01:27 AM. Reason: Forgot somthing
Team Owner
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
That's what it's supposed to do.
Watch the flashes.
flash flash pause flash is code 21.
It'll do that three times then flash each trouble code three times.
flash flash flash pause flash flash is code 32, and so on.
When it flashes 21 again, it's done. The codes will repeat after that. Also, code 21 is not a trouble code.
Watch the flashes.
flash flash pause flash is code 21.
It'll do that three times then flash each trouble code three times.
flash flash flash pause flash flash is code 32, and so on.
When it flashes 21 again, it's done. The codes will repeat after that. Also, code 21 is not a trouble code.
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Joined: Nov 2005
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From: Mountain Home AR
Now I get it!!!! I was looking for numbers, not the amount of flashes!!!! I had code 12---34, and 42. I know the last two is what I'm looking for. I'll get the book out tomorrow and see whats up. Thanks for setting me stright on this. Dave
Drifting
Joined: Mar 2005
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From: GA
Originally Posted by CentralCoaster
That's what it's supposed to do.
Watch the flashes.
flash flash pause flash is code 21.
It'll do that three times then flash each trouble code three times.
flash flash flash pause flash flash is code 32, and so on.
When it flashes 21 again, it's done. The codes will repeat after that. Also, code 21 is not a trouble code.
Watch the flashes.
flash flash pause flash is code 21.
It'll do that three times then flash each trouble code three times.
flash flash flash pause flash flash is code 32, and so on.
When it flashes 21 again, it's done. The codes will repeat after that. Also, code 21 is not a trouble code.
looking for 21.
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From: Summerland B.C. Canada
Team Owner
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by Morley
Not to nit pick but...code 12 is the one he is looking for to begin and end the sequence......we'll get him all looking for 21.
looking for 21.I wouldn't know because my car never breaks down.
Le Mans Master
Joined: Dec 2004
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From: Myrtle Beach SC
St. Jude Donor '05-'06
Mine never flashed for some reason.Still waiting for some one else that is the same.No biggie I'd rather use the Digital any way it breaks the codes down into modules.