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Old 05-11-2019, 12:44 AM   #7
tomm.brz
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Quote:
Originally Posted by toast View Post
The AFR drops to 12.4 with no throttle input while the command is 14.7 and the engine stalls. That's not weird?

Anyway, it happened again after work, so before the fast idle even died down I shut the car off and disconnected the battery. After the ECU reset everything is fine and car drives normally again. I think my tune is somehow walking itself into a bad spot after several weeks of running, that is why it is fine once it warms up. Whatever table is getting bad must reference coolant or oil temp.
but in the log there is accelerator pedal input, like 2 very short blips during the afr drop
you didn t touch the pedal? did you connect something like a wideband on the rear o2 connector? i d check also ground connections on di ecu as steve said
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