On the surface, GM's Tuned Port Injection had everything going for it: style, good looks, and superior breeding (resulting, as it did, from the marriage between Rochester Products and Chevrolet ...

Some Chevy Malibu owners may notice that their vehicle has reduced engine power. Now, a possible cause for this issue has been identified, as has a possible fix to be performed by a GM technician.

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 ...

Imagine a turbocharger trying to pressurize a carburetor with its small venturis and finicky floats and you can get some idea why electronic fuel injection opened the door to big boost, big power, big ...