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where do you hook up the tach wire for prostart system
Problem for Chevrolet 2001 Blazer
Codes on my 2001 Blazer are Po452 and Po651 What
By bcsuperglide on Nov 10, 2009
Codes on my 2001 Blazer are Po452 and Po651 What do I look for?
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Nov 10, 2009
- What are the two codes related to. What is the part or parts thats bad. Does it have anything to do with my heater controls?Clarification Request
Posted by emissionwiz on Nov 10, 2009
A GOOD ELECTRONIC ENGINE CONTROL TECHNICIAN
Solution #1
posted on Nov 10, 2009
CODE PO452 FUEL TANK PRESSURE SENSOR CIRCUIT LOW INPUT CONDITIONS.YOUR FTP OR FUEL TANK PRESSURE SENSOR FAILED. PO651 5 VOLT REFERENCE 2 CIRCUIT MALFUNCTION CONDITIONS.POSSIBLE CAUSE 5 VOLT REF.CIRCUIT IS SHORTED TO CHASSIS OR SENSOR GROUND.OR 5 VOLT REF CIRCUIT TO MAP OR TP SENSORS CIRCUIT IS SHORTED TO B+.ALSO YOUR PCM HAS FAILED.YOU PROBABLY NEED TO TAKE IT TO DEALERSHIP.THEY HAVE DIAGNOSTIC EQUIPMENT TO CHECK SENSORS AND PCM FAILURE.
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