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1984 720 ECU


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I just thought I'd post some pictures of the 1984 ECU my friend picked up from the junkyard recently. It's pretty simple on the inside, with what appears to be through-hole components throughout. Also, these early ECUs seem to have the inspection light toward the rear. Basically, you have to look from behind the driver's seat to see the light. 

 

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That's for a May '83 to May '84 California emissions King Cab and will have the ECC carburetor. This is as close as a carburetor can get to EFI.

 

The inspection light may only be an indicator that the unit is on. Later Z24i which DID have TBI had a diagnostic mode and stored fault codes that were saved could be accessed to help diagnose running problems.

 

 

 

 

 

 

 

 

 

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