Test Description

The number below refers to the step number on the diagnostic table.

7: If all the Cylinder Injector Circuit Status parameters display Fault, this indicates a condition with the injector supply voltage circuit.

Engine Cranks but Does Not Run

Step	Action	Value(s)	Yes	No
1	Did you perform the Diagnostic System Check-Engine Controls?	-	Go to Step 2	Go to Diagnostic System Check - Engine Controls
2	Turn ON the ignition, with the engine OFF. Observe the DTC information with a scan tool. Does the scan tool display DTC P0123, P0230, P0601, P0602, P1626, P1630, or P1631?	-	Go to Diagnostic Trouble Code (DTC) List	Go to Step 3
3	Turn ON the ignition, with the engine OFF. Probe both sides of the FUEL INJR fuse and the ELEK IGN fuse with a test lamp connected to a good ground. Does the test lamp illuminate on at least one side of each fuse?	-	Go to Step 4	Go to Ignition Relay Diagnosis
4	Attempt to start the engine. Observe the engine RPM parameter while the engine is cranking with a scan tool. Does the engine RPM parameter display cranking RPM?	-	Go to Step 5	Go to Electronic Ignition (EI) System Diagnosis
5	Command the fuel pump ON with a scan tool. Does the fuel pump turn ON?	-	Go to Step 6	Go to Fuel Pump Electrical Circuit Diagnosis
6	Turn OFF the ignition. Disconnect a spark plug wire. Install the J 26792 Spark Tester to the spark plug wire. Attempt to start the engine. Does the spark tester spark?	-	Go to Step 7	Go to Electronic Ignition (EI) System Diagnosis
7	While monitoring the Cylinder 1-6 Injector Circuit Status parameter with a scan tool, crank the engine. Do all of the Cylinder Injector Circuit Status parameters display OK while cranking the engine?	-	Go to Step 8	Go to Fuel Injector Circuit Diagnosis
8	Turn OFF the ignition. Install all disconnected components. Install the J 34730-1A Fuel Pressure Gage. Refer to Fuel Pressure Gage Installation and Removal . Turn ON the ignition, with the engine OFF. Command the fuel pump ON with a scan tool. Is the fuel pressure within the specified range when the fuel pump is operating?	358-405 kPa (52-59 psi)	Go to Step 9	Go to Fuel System Diagnosis
9	Inspect for the following conditions: Collapsed air intake duct Restricted air filter element-Refer to Air Cleaner Assembly Replacement . Spark plugs for being gas or coolant fouled-Refer to Spark Plug Inspection . If the spark plugs are fouled, determine what caused the condition. Engine mechanical condition-For example, worn timing chain and gears, low compression. Refer to Symptoms - Engine Mechanical in Engine Mechanical. Restricted exhaust system-Refer to Restricted Exhaust in Engine Exhaust. The engine coolant temperature (ECT) sensor is NOT close to the actual engine temperature. Refer to DTC P0117 orDTC P0118 . Compare manifold absolute pressure/barometric pressure (MAP/BARO) parameters to another vehicle. The parameters should be close in value. Refer to Manifold Absolute Pressure (MAP) Sensor Diagnosis . TP sensor for being stuck in range-Refer to DTC P0121 . Did you complete the action?	-	Go to Step 10	-
10	Clear the DTCs with a scan tool. Attempt to start the engine. Does the engine start and continue to operate?	-	Go to Step 11	Go to Step 2
11	Allow the engine to idle until the engine reaches the normal operating temperature. Inspect for any DTCs with a scan tool. Are any DTCs displayed?	-	Go to Diagnostic Trouble Code (DTC) List	System OK