2017 Chevy Tahoe PPV - Fuel Injector Flow Test

Edward Owner/Technician Texas Posted   Latest   Edited  
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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

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Jd Diagnostician
Texas
Jd Default
 

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

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Agree
Edward Owner/Technician
Texas
Edward Default
 

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
Texas
Jd Default
 

Good luck

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Randall Owner/Technician
Michigan
Randall Default
 

Did you find any more information on this subject? we have a Silverado in house today with same codes coming up

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