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ECU retards ignition without knock

Posted: Fri May 08, 2015 6:24 am
by IceManPL
Hi
Strange thing ...
At WOT , ECU retards ignition until 4k RPM, and then at EXACTLY 4k RPM it adds 4-5 deg.
After that timing is almost value from the map, but i think still 1 deg retarded on 3-4 gear.
I removed knock sensing from the map.

Map and log attached.

Re: ECU retards ignition without knock

Posted: Fri May 08, 2015 5:59 pm
by Matt
If you disconnect your knock sensor do you get the same issue?

Its like the ECU is pulling knock still (which it can do even with knock flags disabled. Normally those cells with knock sense enabled are used for pulling liming in knock limp mode, and the area used to determine if to switch to knock maps)

Re: ECU retards ignition without knock

Posted: Wed May 13, 2015 4:52 am
by IceManPL
Heh, didn't have a chance, engine blown :roll:
Propably one of valves broke down.