Engine Error
P0370
Timing Reference High Resolution Signal A Malfunction
Severity
High
Symptoms
Hard start, misfire, lack of power, check engine light
Common Causes
- Defective optical/hall effect sensor in distributor or injection pump
- Damaged reluctor wheel
- Corroded wiring harness
- PCM failure
How to Fix
- 1 Replace optical/crank sensor
- 2 Replace reluctor wheel
- 3 Repair wiring
- 4 Replace PCM
Estimated Repair Cost
USD
$100
–
$800
Sensor replacement: 150 - 400