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post #26 of (permalink) Old 04-17-2017, 11:23 AM
Rayo
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Join Date: Nov 2008
Location: Ohio
Posts: 3,630
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The ECU will always advance timing with the SPOUT connector plugged in..

Remove the SPOUT connecter, and retard your timing 5°
Then after you do that, reinsert the SPOUT connector and go for a "spirited" drive..

Basically, you want to duplicate the same driving conditions you had before..When you heard the *pinging

Your ECU is advancing the timing too much for the octane of fuel you're using, so compensate..

If for some reason, after you've retarded the timing 5°..You're still getting the *pinging, retard it a few degrees more..

It's imperative, that when you set the timing..The SPOUT connector is removed

I suspect your Harmonic Balancer has slipped on you, and you're running more timing than you think..

Report back, with your findings..






Rayo..

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1991 Ford Thunderbird Sport

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