What does the CKP sensor tell the fuel injection computer?
More specifically, the (CKP) Sensor produces a signal that tells the Fuel Injection Computer or the Ignition Control Module; the exact position of the cylinder pistons as they come up or go down in the compression cycle.
Why is the fuel injection computer not working?
In addition on some makes, like Chrysler/Dodge/Jeep, the Fuel Injection Computer will not continue to power the Fuel Pump or the Ignition System with 12 Volts after an initial ten seconds or so. What Tools Do I Need To Test The Crankshaft And Camshaft Positions Sensors?
When to release the throttle to idle position?
Quickly release throttle to idle position once CKP sensor variation learn procedure fuel cut off is obtained and engine starts to decelerate. Once CKP sensor variation values are learned, the PCM will return engine control to the operator and engine will respond to throttle position.
Which is the first parameter to check for driveability?
No matter what the driveability issue happens to be, the first parameters to check are short-term fuel trim (STFT) and long-term fuel trim (LTFT). Fuel trim is a key diagnostic parameter and your window into what the computer is doing to control fuel delivery and how the adaptive strategy is operating.
More specifically, the (CKP) Sensor produces a signal that tells the Fuel Injection Computer or the Ignition Control Module; the exact position of the cylinder pistons as they come up or go down in the compression cycle.
In addition on some makes, like Chrysler/Dodge/Jeep, the Fuel Injection Computer will not continue to power the Fuel Pump or the Ignition System with 12 Volts after an initial ten seconds or so. What Tools Do I Need To Test The Crankshaft And Camshaft Positions Sensors?
What does live data on ignition timing mean?
The live data for Ignition Timing represents the amount of delay the vehicle’s computer is adding before the ignition commences. If the engine detects a rich fuel mixture, then the ignition will happen sooner, to prevent flooding.
No matter what the driveability issue happens to be, the first parameters to check are short-term fuel trim (STFT) and long-term fuel trim (LTFT). Fuel trim is a key diagnostic parameter and your window into what the computer is doing to control fuel delivery and how the adaptive strategy is operating.