Replaced: vacuum hoses, intake manifold gasket, new spark plug wires, new spark plugs, fixed exhaust leak, new PCV valve, new MAP sensor. I am still firing a p0171 code. It was happening frequently but since the MAP sensor replacement it's only happening at very low speed. I will list the freeze frame details: fuel system- CL, calc load- 3.1, ect- 122, stft- 0, ltft- 21.8, map- 9.7, eng rpm- 850, veh speed- 0, maf- .68, tps- 0. I'm monitor status is showing 2 red icons...c and ev. Any ideas what to change next?
Feb 26, 2021 at 8:05 AM
