cruise issue
I hope the solution is still working for you. That was the first thing I assumed.
Also... nice set up! I bet you are very happy that you didn't get out of the evo game now
Also... nice set up! I bet you are very happy that you didn't get out of the evo game now
tephra-
that last set of logs, were those in a steady state of driving (flat tps) or were you accelerating/braking (even moderately)?
If you were accelerating/braking, it seems like the load transitions such that accelerating chooses MAF, while cruising/decelerating chooses MAP.
Or conversely, if this is a steady tps, it seems like the ecu chooses MAP for load when it registers the AFR's as being too rich.
EDIT: after re-reading, this only occurs while in cruise control (people actually use that
). Seems like AFR's are getting too rich; since the fuel trims are all in line, I'd say the airflow anticipated v. actual is the culprit. I'm having the same problem in low load/rpm (cruising). Try setting the MAP tables back to stock values in the sub-80 load x sub-2500 rpm range. This seems to have temporarily fixed my problem, but ultimate it's a band-aid. I mentioned something about that here:
https://www.evolutionm.net/forums/ec...met-issue.html
that last set of logs, were those in a steady state of driving (flat tps) or were you accelerating/braking (even moderately)?
If you were accelerating/braking, it seems like the load transitions such that accelerating chooses MAF, while cruising/decelerating chooses MAP.
Or conversely, if this is a steady tps, it seems like the ecu chooses MAP for load when it registers the AFR's as being too rich.
EDIT: after re-reading, this only occurs while in cruise control (people actually use that
). Seems like AFR's are getting too rich; since the fuel trims are all in line, I'd say the airflow anticipated v. actual is the culprit. I'm having the same problem in low load/rpm (cruising). Try setting the MAP tables back to stock values in the sub-80 load x sub-2500 rpm range. This seems to have temporarily fixed my problem, but ultimate it's a band-aid. I mentioned something about that here:https://www.evolutionm.net/forums/ec...met-issue.html
Last edited by sstevojr; Jan 27, 2012 at 09:42 AM.
How do you log MAP_calcs and MAF_calcs? I got an ETS 3" FMIC a few months ago and ever since installing it it feels like what you described when I'm cruising at highway speeds. Especially when going up a slight hill - it feels like the car has less torque almost - yet at WOT I've gained almost 30tq. When I'm on the highway going up slight hills I noticed that I have to press the pedal further to maintain speed. Before I could maintain speed up a slight hill at -8 vac, after the new FMIC it takes about -4 vac to maintain speed on that same hill.
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