Having problems with your 1993 GMC Sierra K1500 ?

How do u set the timing on a 93 gmc sierra 1500 350 ?

Posted / edited by AnonymousUser on : 12-03-2018

Answers :

You can set the timing but the ecm, engine control module will reset it back to specs. So it useless to try. Good luck dont forget to rate
You have to unplug set timing wire under hood or dash , ecm acts as an advance , 20 degrees back or forward but timing should be placed at spec , if you check timing with wire still plugged in it will jump around due to constant advance or retardation
Repair Help & Product Troubleshooting for 1993 GMC Sierra K1500

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