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2008 Chevrolet Silverado 3500 HD LTZ 6.6L Poor Idle Quality, MIL Lamp on
Posted to GM Driveability on 4/28/2023 4 Replies

this morning i set up lab scope on regulator for signature, voltage, and duty cycle, low side pressure gauge, and a scanner. Started truck, immediate high pressure, sensor went to 200 mpa, voltage at the regulator was in spec, the wave form was normal, the...

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  Related Documents & Media  2008 Chevrolet Silverado 3500 HD LTZ

 
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car Vehicle Data

2008 Chevrolet Silverado 3500 HD LTZ

VIN 1GCJC33638
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / direct
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursCold, Intermittently

Trouble Codes

P0088Fuel Rail Pressure Too High
Message Closed

car Vehicle Data

2008 Chevrolet Silverado 3500 HD LTZ

VIN 1GCJC33638
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / direct
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursCold, Intermittently

Trouble Codes

P0088Fuel Rail Pressure Too High