Part 2 of 4

Chart A-3 (Part 2 Of 4):

CONDITION
Engine cranks but will not run, or engine may start, but immediately stops running. Battery condition and engine cranking speed are OK and there is adequate fuel in the tank.

CIRCUIT DESCRIPTION
This engine is equipped with a distributorless ignition system called the Electronic Ignition (EI) system. The primary circuit of the EI system consists of two separate ignition coils, an electronic Ignition Control Module, (ICM) and Crankshaft Position (CKP) sensor as well as the related connecting wires and the Ignition Control (IC) portion of the Powertrain Control Module (PCM). Each secondary circuit consists of the secondary winding of the coil, two connecting metal strips molded into the coil housing, the spark plug boot/connector assemblies and spark plugs.

CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.

6. Battery voltage should be available at CKT 120 whenever the fuel pump power feed circuit is switched "ON." The PCM should switch the fuel pump "ON" for 2-3 seconds after ignition is turned "ON" (and when PCM is receiving ignition reference pulses, as while cranking or running). The ignition must be turned "OFF" for at least 10 seconds to assure that the PCM powers down and will then switch the fuel pump back "ON" for 2-3 seconds when ignition is turned back "ON."
7. Light "ON" one circuit only indicates power is available at cavity "A", but grounded circuit is not being completed on the other circuit. This could be due to open circuit or PCM not switching the injector driver circuit to ground.
8. Steady light indicates ground circuit is always completed and is not being switched. This could be due to short to ground in circuit, or faulty PCM injector driver.
9. This will verify the integrity of the connector, also check for moisture or corrosion in the connector.