Why are they different? I'm logging both and getting different results????
Why are they different? I'm logging both and getting different results????
Anybody?
Below are the maps of both pids from a recent log with differing results. Max values.
I think GM.KR is the required pid, with GM.KNKRET picking up the same knock and more??
GN.KR
GM.KNKRET
Heres a stab in the dark, could GM.KR be spark reduction as a result of data recieved from the knock sensor and GM.KNKRET be spark reduction as a result of data recieved from the knock sensor combined with other PCM calculated knock reduction?
This makes sense as there is a band seen between 3600rpm and 4800rpm with the common value 3.87
Last edited by Gelf VXR; March 8th, 2008 at 06:33 PM.
GM.KNKRET pid is the amount of retard to prevent burst knock from from i think {B1914} and its effect seen on this log, just after a change in TP. No GM.KR either.