
1999 GMC K1500 Suburban SLE 5.7L Misfire, MIL Lamp on
hello im matt from daves downtown conoco i am 19 years old and this is the first time were using iatn. yesterday this suburban came in with a misfire. first thing i checked the scanner for codes and just said po300 for the misfire so i went into data and seen ...
FIX posted 2/14/2013
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)36 Replies Received(Hide Replies)36 Replies Received
|
Message Closed w/FIX
|
VIN | 1GKFK16R5X |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
P0300 | Multiple Misfire Detected |
P0430 | Catalyst Efficiency Below Threshold (Bank 2) |
Message Closed w/FIX
Vehicle Data
1999 GMC K1500 Suburban SLE
VIN | 1GKFK16R5X |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
P0300 | Multiple Misfire Detected |
P0430 | Catalyst Efficiency Below Threshold (Bank 2) |