I am sorry you are right NO. CKP sensor. I was looking at 3.8L.
IGNITION SYSTEM
DISTRIBUTOR IGNITION (DI)
The DI system (formerly Thick Film Ignition-IV (TFI-IV) system) has 2 distinct configurations. In the first configuration, the Ignition Control Module (ICM) is mounted on the distributor. The ICM has 3 pins, which plug into the Hall Effect Camshaft Position (CMP) sensor located within the distributor. In the second configuration, ICM is not mounted on distributor but in another location within engine compartment.
The components of both configurations consist of ICM, distributor CMP sensor and "E" core ignition coil. The distributor used on the distributor-mounted ICM is a universal distributor with an opening for the ICM. The distributor used on remote-mounted ICM is a sealed distributor. On both distributors, the CMP is located within the distributor. There are no mechanisms within either distributor for centrifugal or vacuum advance.
The CMP sensor responds to a rotating metallic shutter on the distributor shaft and produces a Profile Ignition Pick-Up (PIP) signal. The PIP signal provides base timing information and is an indication of engine RPM and position. Since the shutter is mounted on the distributor shaft, 2 engine crankshaft revolutions are required to fire each spark plug once. This is because distributor rotates at half of crankshaft speed.
The internal circuitry of the ICM will have one of 2 arrangements, push-start or Computer-Controlled Dwell (CCD). The push-start system allows for increased dwell, or coil ON time, when starting engine. The ICM determines when to turn coil on based upon engine RPM information. The coil is then turned on or off, whenever a rising edge of a Spark Output (SPOUT) signal is encountered. The SPOUT signal is a digital signal generated by the Powertrain Control Module (PCM) to provide spark angle information to the ICM. The SPOUT signal controls only the firing of the coil. The falling edge of the SPOUT signal is ignored.
The CCD system is the same as push-start system, except the falling edge of the SPOUT signal is now generated to control coil ON time. The coil ON time, or dwell, is entirely controlled by the SPOUT signal. The ICM does not internally determine when to turn the coil on as it does on the push-start system. On the CCD system, the ICM responds directly to the SPOUT signal it receives.
SPONSORED LINKS
Monday, March 29th, 2021 AT 8:02 PM
(Merged)