Chart A-4 Engine Cranks But Will Not Run

Fig. 086 - Wiring Diagram for Engine Cranks But Will Not Run. VIN 2, VIN R, VIN U:

CHART A-4

ENGINE CRANKS BUT WON'T RUN
2.5L "A,X, AND N" SERIES

Fig. 085 Chart A-4 - Engine Cranks But Will Not Run:

7. Circuit 439 ignition voltage to the injector. Probe each connector terminal with a test light to ground. There should be a light on one terminal, confirming ignition voltage at the connector. The ECM injector control circuit 467 may be open. Reconnect the injector, and using a light connected to ground, check for a light at the white ECM connector terminal "8". A light at this point indicates that the injector drive circuit is OK.
8. No blinking light indicates no ECM control of injector. With the voltmeter selector switch in the "AC" Volts position, and voltage scale switch in the 2 volts range, voltage should be greater than .7 volt AC normally reads about 1.4 volts AC. If the voltage is less than .7 volts AC there is an open or short to ground in HEI reference circuit 430. If the circuit is OK, there is a basic HEI problem. See FUEL & IGNITION.
8A. Alternate procedure. Disconnect distributor connector. Momentarily touch ECM side of connector, reference CKT 430, with a test light to 12 volts. Note injector as contact is made. Each time test light momentarily contacts CKT 430, the injector should "turn on". If injector "turns on", the ECM injector control circuit is OK. Connect ST-125 and check for "spark". If spark is OK, it is a faulty HEI module, no spark indicates a basic HEI problem. See FUEL & IGNITION.