Please, I need an electrical diagram of an ECU (ECM) Engine Cummins 4 cylinder. I have to install the electrical wiring of this electronic injection engine. I need to know the proper pin. This module electronic injection is the same team that the dodge ram. Sorry, I can not speak English properly. This wiring diagram can be sent in PDF to my email email@example.com. Thank you, friends. (Samuel Lucena - Brazil).
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ecm goes bad it will go in limp mode, vechicle will run poorly check engine light will stay on vechicle wont start.you need to use a code scanner check for ecm fault code, if check engine light not turning on when you start vechicle could have blowed ecm fuse or wiring problem, could have loose connection at ecm electrical connector or ecm getting poor ground but first check for a defective ecm using a code scanner.
P1607 Engine Control Module (ECM)/Powertrain Control Module (PCM)
Internal Circuit Malfunction.
aquire the appropriate pinout diagram for your ecu's plugs. then proceed
to verify each of the ecu's power wires have the correct voltage. then
proceed to perform a continuity test on all ecu grounds. this means
checking voltage from the ecu plug to the ground location that the wire
goes to. you should find your problem somewhere within there if you have
already swapped out with a KNOWN GOOD ecu.
The Engine Coolant Temperature (ECT) sensor is mounted in the water
outlet on the back side of the head. If you vehicle still has a
original VW part it will be black in color with a four terminal
connector. This device signals the engine management system with the
current coolant temperature, the ECU takes this information and uses it
to control other such circuits as the idle speed, knock control system,
oxygen sensor circuit, exhaust gas recalculation, and fuel tank
venting. It is also important to note that if at any time ECU does not
receive a signal from the ECT it will substitute a value of 176°F
The Engine Coolant Temperature sensor is mounted in the thermostat
housing. The body of the sensor will be blue and the sensor will be
blue and have
two terminals if it is an original factory VW part.
The engine coolant temperature gauge uses a heat sensitive sending
unit to transmit an electrical signal to the gauge. The sending unit is
a heat sensitive variable resistor that is located on or near to the
cylinder head and threads into an engine coolant passage. The sensors
are a Negative Temperature Coefficient (NTC) type. As the temperature
increases, the electrical resistance of the sensor decreases. As the
coolant temperature changes, so does the resistance of the sensor. The
gauge is calibrated within the operating range of the sensor and
interprets the resistance value to display the coolant temperature.On models produced prior to 1994, the engine coolant gauge temperature sensor is a single wire terminal sensor.
Beginning with model year 1994, the engine coolant gauge and the Engine
Control Module (ECM) temperature sensors were combined into one sensor
with 4 terminals. The basic operation remains the same in that their
resistance decreases as the coolant temperature increases, however the
actual resistance values of the 2 sensor circuits are different. The
electrical connector of the 4-wire terminal sensor (1
2) is keyed to prevent improper connection of the sensor's electrical circuit.
WARNINGWhen trouble shooting electrical components, always consult a
wiring diagram for the particular year, make and model to ensure proper
test equipment connection and diagnosis. Failure to use suitable test
equipment and testing methods could permanently damage the electrical
Fig. Beginning with model year 1994, the Engine Coolant
Temperature Sensors combined the sensors for the ECM and the gauge into
one sensor-1997 2.8L V6 sensor shown
Fig. The electrical connector for the combined temperature
sensors is keyed to avoid improperly connecting the sensor's
wiring-1997 2.8L V6 connector shown
I hope help you with this, good luck (remember rated this help).
sorry never done one so i havent a clue,in the good old days the tach connected to the coil wire but now with all this fancy electrics ,Well what happens is they call it vehicle security so they dont have to release the diagrams and this is done to stop people like myself from by passing the immobilisers when we service a vehicle.Because no doubt as you are aware on new cars that if you drop the oil the immobiliser cuts in.Change the battery and the same thing happens.So what happens to keep the dealers in work ,yes you have guessed it no wiring diagrams ,multilayered circuit boards and wires all the same colour to stop people like me from soldering the two outside legs together of a big switching transistor together to make the vehicle general mechanic friendly.Also encrypted software is used to stop the fault codes from being read ,they throw up the wrong code ?? try asking dealer to install then post where he connected too .,best of british with it