Shouldn't that be too much if it is a lean condition? And also, in the "HOw do I know if it's a MAF sensor problem?" section, you say to do the "truth test" with the engine idling. My scanner does not give baro, but kpa (atmospheris pr.) and with key on,engine off, I get a fairly accurate reading. With the engine running, I get a very different reading, as I would expect. What am I not understanding here, or is there a mistake in the article? Should the engine be idling for this test? Thanks.
"BASICS" section. You said that the o2 sensor is detecting too little O2. on 2001 GMC Yukon
This week's top 10
Recent GMC Yukon Questions
- Shifter will just raise and lower without engaging in any gear
- The dash lights went completely out but not the radio lights. Why? Weird smell?
- gas engine. fuel injection. remote start. replaced injectors. remote start.
- 4x4 turn on then turn off and stay off
- My interior lights wont go out after closing doors
2001 GMC Yukon Estimates
- Starter Replacement ($315 - 512) in Lyons, IN
- Ignition Wire Set Replacement ($200 - 368) in Edenville, MI
- 115,000 Mile Service ($124 - 186) in Wooton, KY
- Alternator Replacement ($312 - 488) in Terra Alta, WV
- Wheel Speed Sensor Replacement ($175 - 320) in Cataldo, ID
- Suspension Control Arm Replacement ($558 - 588) in Elkhart, KS