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P0370 Opel Timing Reference High Resolution Signal A Malfunction

Author: carobdcode/Categories: Opel/Time: 2013-08-14 08:20
121

P0370 Opel Timing Reference High Resolution Signal A Malfunction

Possible causes
- Timing Reference Optical Sensor harness is open or shorted
- Timing Reference Optical Sensor circuit poor electrical connection
- Faulty Timing Reference Optical Sensor
- Damaged Powertrain Control Module (PCM)
What about the obd code?
A number of high resolution pulses missing per every 8 cam reference pulses.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0370 Opel Description

The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing. This test monitors the number of high resolution pulses which have been missed (not detected). It’s based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. There are approximately 64 high resolution pulses for every cam pulse.

Opel Vehicle:Opel Meriva,Opel Astra,Opel Corsa,Opel Zafira,Opel Omega,Opel Calibra,Opel Vectra

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