P0171 Diagnostic Trouble Code Discussion for August 2017
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2001 Mazda MPV DX 2.5L MIL Lamp on VIN: JM3LW28Y01 P0171: Adaptive Fuel Trim Too Lean (Bank 1). ... giving me codes p1170, p1173 and p0171 and p0173. I smoked the vehicle and I cannot find any leaks. I replaced the MAF to test and problem continues. Fuel pressure is 54psi koer. performance is not terrible car runs good but I would like to see a little mo... |
August 10, 2017 | |
| 2004 Volkswagen Touareg V8 4.2L Cuts out, Stall VIN: WVGCM67L54 P0171: system too lean bank one. ... auction. When we got it the brake booster was leaking vacuum from under the dash and it would stall after running for just a few minutes. I figured the large vacuum leak was causing the stalling problem and the p0171 code. I replaced the booster, but it st... |
August 14, 2017 | |
| 2002 Toyota Echo 1.5L Poor Idle Quality, Hesitation, Misfire VIN: JTDAT12352 P0171: Fuel System Too Lean (Bank 1). Car came in with codes and hesitation when first throttling. Found wrong sparkplugs in it and replaced. Misfire went away. Ran volume efficiency test and passed. Smoke tested and found small air leak (repaired) and leak around oil cap (replaced). System is obv... |
August 22, 2017 | |
| 2009 Mitsubishi Lancer Ralliart 2.0L Hesitation, MIL Lamp on, Erratic shifting VIN: JA3AV66VX9 P0171: Bank 1 lean active. ... this high performance version of the Lancer. Ralliart. It is a 2.0 Turbocharged engine. Auto Trans. It is overdue for IEPA emissions testing I can clear the codes, drive ever so easy and set all monitors to ready. I could take it to the test like that b... |
August 28, 2017 |
