Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello Jeff, my name is ***** ***** I am a professional here at Justanswer. Thank you for your question and I will assist you with your concern.If you install a fuel pressure gauge to the fuel system dose the pressure hold at 10 - 13 PSI and and hold when you turn the key off?
I would sure start there if it was me. This is a lean code and usually sets due to a fuel pressure concern. Check the running pressure and then shut the engine off and see if the pressure holds to at least 10 LBS. If it drops off right away and or dose not read at least 10 PSI then the pump is likely failing providing the fuel filter is clear. The fuel test will verify. Check it and let me know the results and we can work from there if need be.