Motor clatter after loading 2nd e-tune
#1
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Motor clatter after loading 2nd e-tune
I just got Uprev for my Z and the car feels better already. The first e-tune went great but when I sent my logs in for the 2nd e-tune Uprev said I was running rich and the 2nd e-tune should help fix that. I loaded the 2nd e-tune and the car seems to run great but when I turn the car off I get clatter from the motor (just a bit) from the time I turn the key off and the time where the motor stops. Is this a problem? I never had it before I loaded the 2nd e-tune. When I send my next log in I will tell them about the clatter in the email. Is this clatter something that could hurt my motor? Should I just load the first e-tune back and drive it untill I get my next e-tune? This Z is my baby and I dont want to see it hurt Thanks
#3
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The ECU remains powered up for a few seconds after you turn the key off. Put your ear close to the throttle body and see if that is what you are hearing - it sweeps open and closed when you turn the car off as a self-test before the ecu shuts down. This is more of a high pitched whine than a clatter, and should not have changed with the etune - maybe you are just noticing now? Can you better describe the noise or get a video?
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