Hi guys, i need some help understanding knock strategy behind Ford's ECUs
The car is a 2019 Ford Mustang 5.0 GT, it is completely stock, it still has the stock map, and i logged it at WOT in 4th gear using 97oct gas, but it pulled serious timing: At 5000 rpm, it was pulling more than -8.0 degrees.
Is this normal or am i missing something?
Log is attached
No. Knock Retard at -8.0 degrees is +8.0 additional degrees of advance totalling 26.x degrees. It's working fine.
Read my signature
Knock Retard is the reduction or prevention of knock by lowering ignition timing:
(+) Adding Knock Retard = Reducing Timing. PCM is seeing knock.
(--) Lowering Knock Retard = Increasing Timing. PCM isn't seeing knock.
__________________________________________________ ________
2014 Mustang GT Premium. VMP Gen2R Supercharged with an FTI 3000rpm Converter. JLT, BMR, Steeda, Viking, etc.
Don't fix it if it ain't broken | Maximum effort gets maximum results
Ok, thank you very much for the answer.
Laughing hard at the fact that you even have this on your signature. Must be a very common misinterpretation i believe?
No problem bro and yeah all the time haha.Originally Posted by victorscn
Knock Retard is the reduction or prevention of knock by lowering ignition timing:
(+) Adding Knock Retard = Reducing Timing. PCM is seeing knock.
(--) Lowering Knock Retard = Increasing Timing. PCM isn't seeing knock.
__________________________________________________ ________
2014 Mustang GT Premium. VMP Gen2R Supercharged with an FTI 3000rpm Converter. JLT, BMR, Steeda, Viking, etc.
Don't fix it if it ain't broken | Maximum effort gets maximum results
on the 18+ cars you might want to look at knock per cylinder, so you will be logging 8 PIDs for knock. In that case negative is retarding spark, and positive is advancing spark.
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