3 Causes and Fixes P0121 Code Chevy Silverado
A Chevy P0121 Code Silverado is a “Throttle Position (TP) Sensor 1 Performance.” Common causes include a faulty throttle body, bad throttle position sensor, and wiring. Symptoms include the engine running badly, rapid RPM changes, and possibly limp mode. If you have a Chevy Silverado and get a P0121 error code, there is a problem… Read More »