5 cents performance mod

[Viperoni]

It's debateable, some ECU's won't advance the timing and only add fuel with a colder IAT reading, but some like the Insight will do both.

That being said, running 11.5-12.0 AFR is too rich, especially when it used to run 12.0-12.5... but heck getting 5 degrees more timing ain't half bad (assuming the knock sensor doesn't kick in).

[Yaross]

Originally Posted by Viperoni

It's debateable, some ECU's won't advance the timing and only add fuel with a colder IAT reading, but some like the Insight will do both.

That being said, running 11.5-12.0 AFR is too rich, especially when it used to run 12.0-12.5... but heck getting 5 degrees more timing ain't half bad (assuming the knock sensor doesn't kick in).

honestly, I do not know what AFR my car is running right now. but as you said, it is possible that I will not see any improvement if the knock sensor kick in.

only one way to find out...