Important: Before proceeding with this diagnostic Table, ensure that the vehicle battery is fully charged.
Important: If any DTCs are stored as failed since code clear, diagnose the DTC(s) before continuing with this table.
Check the fuses which supply ignition positive voltage to the following components:
- Electronic ignition control module.
- Fuel injectors.
- If either fuse is blown, locate and repair the short to ground in the affected ignition positive voltage circuit.
- Was a problem found?
If
NO
- Turn the ignition switch to the OFF position.
- Install a fuel pressure gauge at the fitting on the fuel rail.
- Turn the ignition switch to the ON position.
- Observe the fuel pressure gauge.
Is the fuel pressure 48-55 psi and holding?
If NO Diagnose the fuel pump Issue
If Yes go to the next step
- Turn the ignition switch to the OFF position.
- Remove the fuel pressure gauge from the fuel rail.
- Install the scan tool.
- Turn the ignition switch to the ON position.
- Select the Engine Data 1 display on the scan tool.
- Observe the engine RPM while cranking the engine.
Does the scan tool indicate an engine RPM?
I would have to say YES because you have spark -- Correct?
If yes from above then
- Turn the ignition switch to the OFF position.
- Disconnect all of the fuel injector connectors.
- Turn the ignition switch to the ON position.
- Observe the fuel injector test light when installed in each injector connector.
Was the injector test light ON for any of the injectors?
NO correct
Then if NO above go to this step
- Leave the fuel injector connectors disconnected.
- Leave the injector test light installed in the injector connector.
- Observe the injector test light while cranking the engine (repeat for each injector
Did the injector test light blink for any of the injectors?
NO Correct
If no go to this step
- Leave the fuel injector connectors disconnected.
- Turn the ignition switch to the ON position.
- Connect a test light to ground.
- Probe the ignition positive voltage feed circuit to each injector connector.
If NO then you need to find the issue with the power circuit.
If YES then go to the next step
then check for DTC P1626 Theft Deterrent Fuel Enable Signal Not Received