If the timing belt slipped several teeth then the camshaft AND distributor rotor may both be retarded. If the rotor was too retarded then the coil can create the spark… but if the rotor isn’t on a dizzy cap terminal then you won’t get spark routed to the plug wire.
Can a cam sensor cause no spark?
If the camshaft position sensor is malfunctioning, the computer may not be able to determine the correct time to fire the ignition coils, and there may end up being no spark.
What are the signs of a bad crank position sensor?
Symptoms of a Bad Crankshaft Position Sensor
Can a bad cam sensor cause no start?
If you ignore the symptoms listed here and your camshaft position sensor fails, your vehicle will not start. As a camshaft position sensor weakens, so does the data it transmits to the ECM. Eventually the data signal becomes so weak the ECM switches off fuel and spark delivery, and your engine will not start.
What sensor controls timing?
A crank sensor is an electronic device used in an internal combustion engine, both petrol and diesel, to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters.
Are there 2 crankshaft sensors?
The sensor detects signals used by the engine ECU to calculate the crankshaft position, and the engine rotational speed. There are 2 types of the crankshaft position sensors. MPU type is explained here as reference.
What type of sensor is a crank position sensor?
Generally, there are four types of crankshaft or camshaft position sensors: magnetic pick-up coils, Hall-effect sensors, magneto-resistive element (MRE) sensors, and optical sensors.
Does crank sensor control fuel pump?
Technically the crank sensor does indirectly control the fuel pump on a lot of vehicles, when the ignition is switched on the pump runs for a couple of seconds to pressurise the system, it then stops and will only start to run again when the engine starts to rotate, this rotation is sensed by the crank angle sensor …
Is an engine speed sensor the same as a crankshaft sensor?
Crank Position Sensors are more related to Ignition System than speed sensors, which are related to fuel flow and gear selection, primarily. As far as the Engine is concerned, the Crank Position Sensor doubles up as engine speed sensor (Engine Tacho) also.
What’s the difference between camshaft and crankshaft position sensor?
The crankshaft position sensor monitors as a multifunctional sensor used to set ignition timing, detect engine RPM and relative engine speed. The camshaft position sensor is used to determine which cylinder is firing to synchronize the fuel injector and coil firing sequence.
How do I know if my camshaft position sensor is bad?
If your vehicle idles roughly, stalls frequently, has a drop in engine power, stumbles frequently, has reduced gas mileage, or accelerates slowly, these are all signs your camshaft position sensor could be failing.
What makes crankshaft sensor go bad?
There are a few things that can cause the crankshaft position sensor to fail, including damage, debris and faulty circuitry. Even for modern electronics, the engine is a violent and destructive environment. Finally, faulty circuits can cause CKP sensor failure.
Will I have spark with a bad crank sensor?
Yes you can have spark with a bad crank sensor.
