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only the code 12 flashes

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Old Nov 7, 2018 | 2:12 PM
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Reggordo
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Default only the code 12 flashes
1993 chevy blazer s10, runs rough, changed distrib, ignition pack,plugs and wires. Even the ECM computer module, still runs terrrible. Stuttering and undrivable.
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Old Nov 7, 2018 | 2:50 PM
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This might help.
GM OBD I Diagnostic Trouble Codes¦ Complaints Possible Causes,Corrections
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Old Nov 7, 2018 | 3:25 PM
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From: kevinkpk
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I was thinking code 12 is there with key on not running. How about the fuel filter, pump ect.?
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