- Measure the voltage of ECM as below.
- Between B terminal No. 86 and body ground.
- Engine cranking.
Is the voltage about 0 V?
YES – Go to step 14.
NO – Replace the RP sensor. 
- Check for the following conditions:
If the problem is found, repair as necessary.
- Damaged or faulty supply pump.
- Damaged or faulty fuel metering unit
Is a problem found?
YES – Repair the supply pump.
NO – Substitute a known-good ECM and recheck. If symptom/indication goes away, replace the original ECM. Go to injector inspection.
