Can a GM PCM be used for a low resolution crankshaft signal?

Can a GM PCM be used for a low resolution crankshaft signal?

General Motors never released a coil-per-cylinder ignition system that used a low-resolution crankshaft signal, meaning that the PCM cannot be recalibrated for coil-per-cylinder ignition with a low-resolution crankshaft signal.

Where is the camshaft sensor located on the crankshaft?

The camshaft sensor housing is installed on the face of the timing cover where the Optispark distributor used to reside. A 1996ñ1997 LT1 timing cover is required. Due to the crankshaft seal area of the GM LT1 timing cover, a crankshaft reluctor and double-row timing set cannot be used with a GM LT1 timing cover.

How can I tell if my camshaft sensor is bad?

Check your meter display and compare your reading to your manual specifications. In most cases, you’ll see a fluctuating signal between 0.3 volts and 1 volt. If there’s no signal, you have a bad sensor. First, Identify the power, ground, and signal wires using your vehicle repair manual.

How to test the crankshaft position sensor circuit?

Next, Test the sensor circuit by setting your multimeter to “DC volts.” Have your helper turn the ignition key on, but don’t start the engine. Touch the black probe on your meter to ground and the other probe to the power wire. Compare your reading to the specification in your manual.

What are the symptoms of cam sensor trouble?

Here are some more specific symptoms: Engine cranks but won’t start. Trouble code lighting up the check engine light (CEL) on your instrument cluster. P0340: No Cam Signal at PCM. Although the PCM is designed to register a cam sensor trouble code when the cam sensor fails, it rarely does.

How is the camshaft position sensor used in a PCM?

The camshaft position sensor inside the distributor, in conjunction with the RPM info the crankshaft position sensor provides, is used by the PCM to control injector pulse width and ignition timing.

Why is my crank position sensor not working?

Very good explanation Voltage variation on some system that could cause voltage drop and cause the crank position sensor not to output the back the PCM.. = won’t start or died.. the way i read it especially on Prior to 1996″ Voltage Reference.

What happens if the cam sensor in the distributor goes bad?

Symptoms Of A BAD Cam Sensor. The camshaft position sensor inside the distributor, in conjunction with the RPM info the crankshaft position sensor provides, is used by the PCM to control injector pulse width and ignition timing. Since the camshaft position sensor is a critical component of the ignition system, when it fails your engine won’t start.