Injector PW cycles on-off
#1
Injector PW cycles on-off
Im running MS-II v3.0 relay box EDIS and ITBs. Car has been running good until today. The injector PW dies and reads 0.0 every 2-3 seconds and it cycles constantly causing the rpm to oscillate. I didnt do anything out of the ordinary. I tried putting the same value in all the cells on the VE table to stabilize the idle but the injector PW cycles on its own. Ive attached a datalog and my msq
Im very confused. TIA
Im very confused. TIA
#4
I had a problem where overrun fuel cut would activate during a high idle (esp during warmup) and it would cause all of the symptoms and would prevent closed loop idle from working, and RPM would bounce over and over. I don't know of anything else that cuts fuel during running conditions. Did you change your settings or disable overrun fuel cut?
#6
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Your overrun fuel cut settings are way too aggressive. It's triggering fuel cut while idling. You need to move the kPa and tps values down. Here's the info:
http://www.msextra.com/doc/ms2extra/...rsion.htm#orun
http://www.msextra.com/doc/ms2extra/...rsion.htm#orun
#8
It's not. Overrun fuel cut is strictly for conditions where the engine rpm is dropping and there is no throttle input -- such as when coasting to a stop. It's strictly a fuel economy thing.
Decel fuel amount is under your acceleration enrichment settings. Raise your TPS%/s and kPa/s to really high values (like 500) and see if that eliminates your problem. You might be adding in unintended AE with small changes in MAP and that will throw off your AFR and idle. AE info here: http://www.msextra.com/doc/ms2extra/...ual.html#accel
Decel fuel amount is under your acceleration enrichment settings. Raise your TPS%/s and kPa/s to really high values (like 500) and see if that eliminates your problem. You might be adding in unintended AE with small changes in MAP and that will throw off your AFR and idle. AE info here: http://www.msextra.com/doc/ms2extra/...ual.html#accel
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