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P1518 and car won't start

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Old Nov 19, 2023 | 05:56 PM
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St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Default P1518 and car won't start

Purchased an 02 ZO6 a couple months ago

Car has some really nice mods but needed some TLC. I was having intermittent issues with car cranking but not starting until 3-4 times. The car always showed P1518 and I could not clear it but it didn't seem to affect much

I have had the car in the air for 1.5 weeks doing cosmetic and suspension stuff. Also removed the WOT box 2 step that was on the car. Now the car will not start at all, I am getting immediate reduced engine power,and P1518 is the only code present. The battery voltage is good and the car cranks hard, just won't start.

​​​​​​Thoughts? Thanks




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Old Nov 19, 2023 | 08:30 PM
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P1518 is a code releating to the TAC module " throttle actuation control". The module resides underneath the PCM in the passenger fender well and controls the throttle blades it also receives throttle position information from the TPS. I would check the wiring harness and connectors at the TAC module.
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Old Nov 20, 2023 | 07:42 AM
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Originally Posted by mmartinez
P1518 is a code releating to the TAC module " throttle actuation control". The module resides underneath the PCM in the passenger fender well and controls the throttle blades it also receives throttle position information from the TPS. I would check the wiring harness and connectors at the TAC module.

Did that. No evident issues with TAC module, connection, wiring etc. Thanks
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