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Thread: Loss of mpg

  1. #1
    Member bwing's Avatar
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    Default Loss of mpg

    I have a 2003 Z06 and after a recent drive I filled it up and recorded 20 mpg when it had been getting 29-31 mph for the same drive. I have an active code of P1516 which is saying it's the Throttle Actuator Control. Does anyone have any knowledge of this problem? I only have 40,000 miles on the car. Thanks for any help.

  2. #2
    Member bwing's Avatar
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    I checked the throttle body wiring and while doing so saw that the carbon fiber air-bridge was cracked. Replaced it with the OEM air-bridge and everything is working ok.

  3. #3
    Loss of mpg jrbartholomew's Avatar
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    2003 Electron Blue Coupe and 2003 Yellow Coupe
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    glad that was easy !!!
    Red 87 Vert gone... Black 04 Coupe gone... 03 Electron Blue Daily Driver

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