Target
New Member
Hello,
I have a 2002 Tahoe with 125,000 miles. The Service Engins Soon light came on and the error code shows, "Fuel too lean Banks 1 & 2." To me this indicates O2 sensors. I changed both, now the light comes on intermittantly. I have looked for the EGR valve, but think I don't have on because I have a flex 5.3L engine, (VIN Z). I have cleared the code twice, but it comes back the same. I have changed plugs and wires as well. I have do have rough idle at start up on cold mornings, but after it is warm, the engine is smooth as glass purring at 500 RPM. Any thoughts on why the light keeps coming on with this "fuel too lean" code?
Thanks,
Target
I have a 2002 Tahoe with 125,000 miles. The Service Engins Soon light came on and the error code shows, "Fuel too lean Banks 1 & 2." To me this indicates O2 sensors. I changed both, now the light comes on intermittantly. I have looked for the EGR valve, but think I don't have on because I have a flex 5.3L engine, (VIN Z). I have cleared the code twice, but it comes back the same. I have changed plugs and wires as well. I have do have rough idle at start up on cold mornings, but after it is warm, the engine is smooth as glass purring at 500 RPM. Any thoughts on why the light keeps coming on with this "fuel too lean" code?
Thanks,
Target