Idle control - anti stall/idle recovery problem
Hi All,
I have been having a problem with my nismotronic causing a high idle after the engine nearly stalls, and not dropping back down if the car is moving. The idle will return to normal after I stop, but until then, the AAC duty is very high, and causing the engine to accelerate the car while in gear with the throttle closed. I have had a play around with the IDLE RECOVERY settings, but it doesnt seem to be the root cause. It seems as though the ecu doesnt exit IDLE ERROR and return to IDLE RECOVERY correctly if the car is moving. I also get a very high idle when turning the ignition off and back on again while the car is moving (I know this bad, but it used to be my only way to reset my MTX-L when it showed an error). I have uploaded a .TCD and a .TCL for everyone to have a look at. Things I focused on are TPS, AAC%, vehicle speed and RPM. At the start I'm just putting more load on the engine to intentionally bring it into the anti-stall range (I did stall it at first). It sometimes does this with just normal driving, as my clutch has a lot of bite and can drop engine RPM quickly if I get it slightly wrong. After this, the AAC duty goes to 88.5%, where it only needs to be at 50% to meet the target idle. This makes the engine push, and revs up when im changing gears, making it horrible to drive. The IDLE RECOVRY has a Min Speed of 8kph, but there doesnt seem to be a max speed for the IDLE ERROR? Or am I missing a setting somewhere?
I am also having this problem on a friend's car that is also running a nismotronic board. Any help will be greatly appreciated.
Thanks,
Kevin
I have been having a problem with my nismotronic causing a high idle after the engine nearly stalls, and not dropping back down if the car is moving. The idle will return to normal after I stop, but until then, the AAC duty is very high, and causing the engine to accelerate the car while in gear with the throttle closed. I have had a play around with the IDLE RECOVERY settings, but it doesnt seem to be the root cause. It seems as though the ecu doesnt exit IDLE ERROR and return to IDLE RECOVERY correctly if the car is moving. I also get a very high idle when turning the ignition off and back on again while the car is moving (I know this bad, but it used to be my only way to reset my MTX-L when it showed an error). I have uploaded a .TCD and a .TCL for everyone to have a look at. Things I focused on are TPS, AAC%, vehicle speed and RPM. At the start I'm just putting more load on the engine to intentionally bring it into the anti-stall range (I did stall it at first). It sometimes does this with just normal driving, as my clutch has a lot of bite and can drop engine RPM quickly if I get it slightly wrong. After this, the AAC duty goes to 88.5%, where it only needs to be at 50% to meet the target idle. This makes the engine push, and revs up when im changing gears, making it horrible to drive. The IDLE RECOVRY has a Min Speed of 8kph, but there doesnt seem to be a max speed for the IDLE ERROR? Or am I missing a setting somewhere?
I am also having this problem on a friend's car that is also running a nismotronic board. Any help will be greatly appreciated.
Thanks,
Kevin