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1999 Chevrolet K2500 Suburban 7.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on
Posted to GM Driveability on 8/28/2002 3 Replies

Cust. complaint is vehicle runs rough, check engine light comes on, late shifts, especially in AM. The car is running good for me, I scoped engine and scanned for codes, see above results. Freeze data on some of these codes, rpm's were reading at 125 and 258, ...

3 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet K2500 Suburban

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 3GNGK26J1X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire, MIL Lamp On
OccursCold, Intermittently

Trouble Codes

1EVE1
FUE1
P0121Throttle Position Sensor Range/Performance
P0122Throttle Position Sensor Circuit Low Voltage
P0125Engine Coolant Temperature Sensor Slow Response
P0325Knock Sensor 1 Circuit Malfunction
P0405EGR Pintle Position Sensor Circuit Low Voltage
P0463Fuel Level Sensor Circuit High Voltage
SEP04fuel level sensor
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 3GNGK26J1X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire, MIL Lamp On
OccursCold, Intermittently

Trouble Codes

1EVE1
FUE1
P0121Throttle Position Sensor Range/Performance
P0122Throttle Position Sensor Circuit Low Voltage
P0125Engine Coolant Temperature Sensor Slow Response
P0325Knock Sensor 1 Circuit Malfunction
P0405EGR Pintle Position Sensor Circuit Low Voltage
P0463Fuel Level Sensor Circuit High Voltage
SEP04fuel level sensor