Engine Error
P0373
Timing Reference High Resolution Signal A Intermittent/Erratic Pulses
Severity
High
Symptoms
Intermittent stalling, hesitation, check engine light
Common Causes
- Loose wiring connection
- Moisture in the sensor housing
- Failing sensor
- Excessive end play in distributor shaft
How to Fix
- 1 Secure electrical connections
- 2 Dry sensor housing and seal
- 3 Replace optical sensor
- 4 Rebuild or replace distributor
Estimated Repair Cost
USD
$50
–
$400
Wiring repair: 100; Distributor rebuild: 200 - 400