6E–176
4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
Step
Action
6
Using the DVM and check the MAB (fuel cutoff solenoid valve) circuit. Breaker box is available: 1. Ignition “Off”, engine “Off”. 2. Install the breaker box as type A. disconnected) Ref. Page 6E-103 3. Disconnect connector.
the
PSG
(pump
control
Value(s)
Yes
No
—
Repair faulty harness and verify repair
Go to Step 7
—
Verify repair
—
(ECM unit)
4. Check the circuit for open or short to ground circuit. Was the problem found?
Breaker Box 105
E-6
Breaker box is not available: 1. Ignition “Off”, engine “Off”. 2. Disconnect the PSG (pump control unit) connector. 3. Check the circuit for open or short to ground circuit. Was the problem found? C-57
105
7
Replace the injection pump assembly. Is the action complete?
E-6
5