TCCoA Forums - View Single Post - Chasing that pinging/rattling

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post #26 of (permalink) Old 04-17-2017, 11:23 AM
Rayo's Avatar
Join Date: Nov 2008
Location: Ohio
Posts: 3,671
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..


1991 Ford Thunderbird Sport

"If you don't know where you're going..Any road will take you there."George Harrison
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