This overview illustration will help you place many of the different sensors used in a multipoint fuel-injection (MPFI) engine such as a 5.0L Ford or GM tuned-port-injection (TPI) 305 or 350. One ...

I remember sitting in auto shop listening to Mr. Curtis explain the virtues of fuel injection, circa early '80s. Even then, the term was far from new, and yet fuel injection was all but unobtainable ...

The P2135 code indicates that the engine control module (ECM) has detected a mismatch between the voltage signals of Throttle Position Sensor (TPS) A and TPS B (image below). These dual sensors work ...