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What unit controls the fuel injectors?
Powertrain control module (PCM)
What is the dc voltage from the pcm to the fuel injectors on a 2004 Chrysler pacifica?
The injectors receive a 12 volt feed from the auto shutdown relay.
What controls the firing of the injectors on a 1999 Chrysler sebring?
The PCM, engine computer, controls the fuel system.
Why does your 92 Buick Roadmaster wont fire after changing the fuel injectors?
make sure the pcm fuse isant blown
What does the fuel rail do?
It is the connection between the fuel lines and the injectors.
What is the main difference between port fuel injectors and direct injection injectors?
The main difference between port fuel injectors and direct injection injectors lies in where the fuel is delivered in the engine. Port fuel injectors spray fuel into the intake manifold, mixing it with air before it enters the combustion chamber. In contrast, direct injection injectors inject fuel directly into the combustion chamber at high pressure, allowing for more precise fuel metering and better combustion efficiency. This difference can significantly affect engine performance, emissions, and fuel economy.
What does PCM stand for pertaining to cars?
PCM is an acronym for Powertrain Control Module. The powertrain control module (PCM) performs many functions on your car. The module accepts information from the engine sensors and computes the required fuel flow necessary to maintain the correct amount of air/fuel ratio necessary for the engine to perform properly. Based on the information that is received and programmed into the the memory the PCM generates output signals to control relays, actuators, and solenoids PCM also sends out a command to the fuel injectors that meters the appropriate quantity of fuel. The PCM automatically senses and compensates for any changes in altitude.
When 1991 Cherokee cuts out there is no spark no fuel?
Spark and fuel are controlled by the PCM (Power Control Module), the PCM grounds the ASD relay (Auto Shut Down) which in turns sends power to the ignition coil and to the fuel injectors, the injectors open upon receiving a ground signal from the PCM as well as the ignition coil fires a spark when it gets the ground signal from the PCM, now none of this will happen if the PCM does not get a signal from the CKPS (crank position sensor) this sensor tells the computer the engine is spinning as well as where is the piston located at that instant of time in order for the PCM to give the ground signal to the coil fuel injector or the ASD which gives the juice to those components.This sensor is located in the rear of the engine is a 3 wire plug and it sends its signal from the presence of windows in the flywheel.
What makes the injectors pulse on a 1988 f150 It has fuel pressure and is firing but will not crank?
The crank and cam sensors send signals to the pcm primary control Mogul and the pcm make them open and close if the wiring is ok. hope this helps you.
What would cause an engine to be starved of fuel the filter is clean it pumps plenty of fuel when turned over the tank is vented it starts and idles?
This condition can be caused by a few things. As in clogged fuel injectors or the PCM has failed and is in a limp mode
Your 2000 neon pcm was replaced at lit bc the tech couldn't communicate and program a new coded key for you now the pcm works but there is still a problem and the car will not start it just cranks.?
It could be your injectors, check them with a multimeter, or try checking the wiring that runs from your PCM to the engine. Also make sure the fuel pump is pumping fuel to the engine, it could be a relay too...
What Is Wrong if a 1994 Acura Integra Doesn't get no fuel?
depends, could be fuel pump, fuel regulator, or fuel filter. depends where in the system it is losing fuel, work from the engine back. if there is fuel up to the injectors, then it could be your harness to the injectors..rarely do all the injectors go bad at once, unless a massive power spike hit them, that could fry, try a digital multimeter from the ground side to the positive side when cranking check for voltage, never ever use amperage as that could fry your pcm.
