168 bhp 5800 rpm
on a1990 Isuzu pickup 2.6 same engine 7.1 psi at 900 rpm and after warm up 58.9 at 4000 rpm
on a 1989 Isuzu pickup with a 2.6 same engine 12 degree b.t.d.c. at 900 rpm
by sensing engine RPM it can teel if engine is not running smooth by sensing the rotation of the rpm's of the engine.
map sensor or a bad vacum leak
Here's a link that may help. The RPM sensor is also known as a crank position sensor. http://www.volvoclub.org.uk/faq/EngineSensors.html#Crank_Postition_Sensor
The throttle position sensor tells the engine control module what you are doing with the throttle as you drive. If you let your foot off of the accelerator pedal the throttle position sensor sends that information to the engine control module and the engine will receive less fuel and it will lose rpm.
The year, make, model and engine info would help.
diagram of rpm in trooper
I have replaced numerous parts the cap and rotor,fuel pump, O2 sensor and the caalytic converter but it still does not accelerate.
Crank angle sensor reads rpm and sends the signal to the ECU (computer) to aid in the calculation of engine rpm, ignition timing, fuel injection and crankshaft position.
Trouble code P0320 means: Crankshaft position (CKP) sensor/engine speed (RPM) sensor - circuit malfunction