The powertrain dominion module, otherwise recognized as the PCM or personal computer, is essentially your vehicle's brain. The PCM in your vehivle or Motor lorry is designed to containment and administer all of its functions and parts. Problems in the machine can advance to grave problems with nearly every angle of your machine or Motor lorry through the personal computer has to occupation properly in form for everything else to supersede suit.
Running Poorly
The PCM is what basically controls and regulates your fuel development. The PCM's functions include positioning the crankshaft and controlling the ignition spark and timing. If there are problems with how the PCM performs these functions, the vehicle will not run and may even incur damage.
Dashboard Error Lights
Whether it is not getting enough fuel, it will cough, choke, sputter and may even stall. If it is getting too much fuel, your fuel economy will decrease and your exhaust emissions will increase.Will Not Run
In some cases, a PCM problem will cause the vehicle not to run at all. Contradistinctive sensors in the engine letter the PCM facts approximately what the engine is doing. The PCM then adjusts the fuel mixture based on this info. Provided the PCM is not working properly, odds are that the fuel assortment Testament not be hold together. The vehicle may be receiving besides much fuel or besides cramped.
If your PCM is malfunctioning, you can expect to see almost every error light imaginable appear and disappear at some point. The PCM controls and interprets sensor readings, so if it is not doing this properly, you can expect to see your "Check Engine" light, your "ABS system" light and a variety of others flash on and off.
Emissions
The PCM controls your vehicle's fuel and emissions system. If your PCM is not functioning properly, your car may fail its emissions test, emit too much smoke, emit colored exhaust (white, blue or black, depending on the issue) and may smell like fuel.
