Category: Air & Fuel Mixture Control

Here we will discuss codes related to the air-fuel mixture control systems. The ECM (Engine Control Module) uses sensors such as the mass airflow, manifold absolute pressure sensor, oxygen sensors, and A/F sensors along with many more in order to monitor and adjust how the engine is running. It then uses this information to precisely inject the proper amount of fuel and air and then ignite this mixture at the proper time in order to maximize performance and increase fuel mileage to its peak. In newer cars, this is perfected even further by adding variable camshaft timing, multiple camshaft and crankshaft position sensors, and direct fuel injection.

Chrysler P0128 – Meaning, Causes, Symptoms, & Fixes

Chrysler Code P0128 Definition Coolant thermostat temperature below regulating temperature Chrysler  Code P0128 Meaning The powertrain control module (PCM) tracks how long it takes for the engine of your Chrysler to reach and maintain the correct operating temperature. When the correct engine operating temperature is reached, the powertrain control module orders the fuel system to enter “closed...

P0128
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