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1998 Chevrolet K2500 Cheyenne 6.5L Excessive Emissions, Hesitation, MIL Lamp on
Posted to GM Driveability on 9/19/2005 4 Replies

Have low power at times while accelerating with heavy black smoke. Worked on turbo first to see if causing problem with coded p0236. Control working and turbo working. Then moved on to egr codes, found when problem accured the desired egr and the actuall egr w...

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car Vehicle Data

1998 Chevrolet K2500 Cheyenne

VIN S6WE114333
Engine6.5 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI / desiel turbo
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, MIL Lamp On
OccursUnder Load, on Accel, Intermittently

Trouble Codes

P0236Turbocharger Boost Sensor Circuit Range/Performance Problem
P0401EGR System Insufficient Flow Detected
P0404EGR Control Circuit Range/Performance
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet K2500 Cheyenne

VIN S6WE114333
Engine6.5 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI / desiel turbo
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, MIL Lamp On
OccursUnder Load, on Accel, Intermittently

Trouble Codes

P0236Turbocharger Boost Sensor Circuit Range/Performance Problem
P0401EGR System Insufficient Flow Detected
P0404EGR Control Circuit Range/Performance