P1516 Diagnostic Trouble Code Discussion for May 2026
TAC Module Throttle Actuator Position Performance
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Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P1516
| Help Request | Posted | |
| 1998 Chevrolet Corvette 5.7L No Start, Broken gears in T/B P1516: Commanded vs actual TP Performance. What a mess! I'm retired but am helping a guy out with an LS1+ 6 speed swap into an old car. on first start attempt, it immediately set the three codes and will not fire. I believe PCM is preventing start because it can not control throttle. I used my DSO ... |
May 21, 2026 |
