Very strange

[GMTECH12002]

Got in my car Friday and drive it to work, car ran fine. Left work Friday at 5 and I noticed it wasn't running very good, loss of power on hard accel and I seen my wideband hit 17:1 on accel in 2nd gear this is on e85, so I figure I gotta fuel pump issue, but just to be safe I went into my chip settings with my scanmaster 2.1 to up the wot overall fuel and found the bl setting at 107, since I had this 5.7tt chip it has always been ran at 134 for this setting but somehow mysteriously it changed itself to 107, I changed it back to 134 and now the car is running like it should, hope it stays!!! Anybody else seen this?


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[Eric Stage I]

The settings for 5.7 chip are held inside the ECM's memory. The ECM's memory can get corrupted from voltage supply problems, low battery, battery chargers, or a bad ECM.
Eric

 

[GMTECH12002]

Ok that makes sense, but is this pretty common, I mean It kinda worries me now, I'm already OCD enough now I will be checking my tune all the time!


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[Eric Stage I]

No it's not terribly common, but it does happen. If you would rather not figure out the cause, I can change the chip to be non adjustable, and permanently "freeze" your settings.

 

[GMTECH12002]

I think I would rather have the tune ability, I will just keep an eye on the tune, and check the battery


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