2017 Chevy Tahoe PPV - Fuel Injector Flow Test

Edward Owner/Technician San Antonio, Texas Posted   Latest   Edited  
Question
Driveability
2017 Chevrolet Tahoe PPV 5.3L (C L83) 6-spd (6L80)
P0300 - Random/Multiple Cylinder Misfire Detected
P050D - Cold Start Rough Idle
P2099 - Post Catalyst Fuel Trim System Too Rich Bank 2

Faults PO300 P050D P2099

Guys I don't have a (AFIT) Tester 

Has anyone used the GDS 2 software to perform an accurate injector balance test if so does the average pressure drop still apply 

Fuel Pressure Drop- Cylinder 1 Injector 24.5 PSI

Fuel Pressure Drop- Cylinder 2 Injector 41.8 PSI

Fuel Pressure Drop- Cylinder 3 Injector 29.0 PSI

Fuel Pressure Drop- Cylinder 4 Injector 39.2 PSI

Fuel Pressure Drop- Cylinder 5 Injector 26.1 PSI

Fuel Pressure Drop- Cylinder 6 Injector 44.9 PSI

Fuel Pressure Drop- Cylinder 7 Injector 26.1 PSI

Fuel Pressure Drop- Cylinder 8 Injector 39.7 PSI

+2
Jd Diagnostician
Houston, Texas
Jd
 

There is a service bulletin on codes P050d and 300 about coolant getting into the cylinders

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Edward Owner/Technician
San Antonio, Texas
Edward
 

Hello JD Zela Ya Yes I did check this bulletin, check out fine, might double check with an oil analysis... Thanks For the input

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Jd Diagnostician
Houston, Texas
Jd
 

Good luck

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