Results of Incorrect Operation

Distributor And Cylinder ID:

LEGEND
(1) Cylinder #1
(2) Cylinder #2
(3) Cylinder #3
(4) Cylinder #4
(5) Cylinder #5
(6) Cylinder #6
(7) Cylinder #7
(8) Cylinder #8
(9) Distributor Assembly

RESULTS OF INCORRECT OPERATION
An open IC circuit will set a DTC P1351. A grounded IC circuit will set a DTC P1361. An open or grounded IC circuit will result in an engine cranks but will not run. An open or ground in the low resolution signal circuit will set a DTC P1371 and the engine will not start. If the high resolution signal circuit becomes open or grounded a DTC P0372 would set. This will cause reduced performance and poor fuel economy.

An inoperative distributor vent system may cause premature distributor failure. To check system operation perform Distributor Vent System Check.

The PCM uses information from the MAP and engine coolant temperature sensor in addition to RPM to calculate spark advance as follows:
^ Cold engine = More spark advance.
^ Engine under minimum load based on RPM and low amount of air flow - More spark advance.
^ Hot engine = Less spark advance.
^ Engine under heavy load based on RPM and high amount of air flow - Less spark advance.

For misfire or ignition control check, refer to the following DTCs:
^ P0300
^ P0323
^ P0372
^ P1351
^ P1361
^ P1371