Rick's Free Auto Repair Advice

Posts Tagged: wiring harness

P0120, P0220, P1516 – Chevrolet Tahoe 5.3L

Fix codes P0120, P0220, P1516 – Chevrolet Tahoe 5.3L Chevrolet Tahoe vehicles may experience a performance issue where they will not go over 15MPH and show trouble codes P0120, P0220, P1516. The vehicle may appear to be in “limp-in” mode, giving just enough power to get you to a shop. The codes indicate a problem with the throttle position sensor circuits and throttle actuator performance. Do NOT start replacing parts. Shops report a pattern failure in the electrical harness to these sensors. Chevrolet has issued a revised replacement harness to … Read More


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