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Geo Metro ECM puzzle



 
 
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  #1  
Old October 29th 05, 10:30 PM
Steve
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Default Geo Metro ECM puzzle

I picked up a '92 Geo Metro 5 spd (cheap) that had been partially stripped.

It seemed like a simple matter to "Put Humpty Dumpty" together again since
there seem to be plenty in the wrecking yards.

This was true until it came to the ECM computer. I have no idea which
computer should be in this car. The all look the same, except for the
Letter/Number designation. I first tried a '91 (I think) 5 spd "A-3" ECM
from and found that the plugs are not the same. Went back looking for some
thing newer and found only a '94 Swift 5 spd with a "L-3" ECM. The plugs are
the same but I'm not getting any signal to the coil. (coil is hot and OK but
the distributor doesn't fire the coil. Changed distributor pickup units but
now change.)

I'm wondering if I still have the wrong module.

I see an ECM on ebay that is suppose to be from a '92 5spd and that module
designation is "B-8" . I'm going to bid on it if I think that might solve my
problem..

Anyone have any constructive thoughts/Ideas on this..

Steve


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  #2  
Old October 29th 05, 10:39 PM
Bret Ludwig
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Default Geo Metro ECM puzzle

There is a Yahoo group on using these engines on experimental aircraft.
Someone there will know. You could also convert to aftermarket ECM
(MegaSquirt) or if there is a way to hang a distributor, to a carb and
do away with the ECM.

  #3  
Old November 1st 05, 02:36 AM
plainoldmechanic
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Default Geo Metro ECM puzzle

call your local chev/geo dealership and provide them wiyh the vin to
your new hoopty and they can provide you with the proper ECM #'S you
are searching for.

  #4  
Old November 1st 05, 02:59 AM
Professor
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Default Geo Metro ECM puzzle

Right on...

Professor
www.telstar-electronics.com

plainoldmechanic wrote:
> call your local chev/geo dealership and provide them wiyh the vin to
> your new hoopty and they can provide you with the proper ECM #'S you
> are searching for.


 




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