CEL P0171 - Mazda 6 Forums : Mazda 6 / Mazda Atenza Forum

CL21376 · 11-08-2009, 05:37 PM

hi....

I got CEL P0171 last week...Removed and cleaned the MAF with aerosol electric cleaner and disconnected the negative battery terminal for a couple hours.

75 miles later I get the same code....Bought a new MAF and disconnected the negative battery terminal again for a couple hours.

75 miles later I get the same code. The guy at AutoZone was trying to sell me all new oxygen sensors, but I declined for the time being. Would O2 sensors throw a specific code if they were faulty?

Is there anything else I should be looking at? I'd rather avoid taking my car in, if at all possible.

Car is an '04 V6/MTX with 65,000 miles. Car is stock save for the a gutted air box (done ~45,000 miles ago) and a K&N replacement filter. I'm still running the original plugs/wires, although I would suspect if that was the issue, it would be a single or multiple cylinder misfire.

Any ideas of what else I could look at?

Thanks,
chris

The Great NY · 11-08-2009, 10:33 PM

it could possibly be the O2's getting old. i was gonna say its for your intake, but your Gutted Airbox should not cause this.

maybe even a vacumm leak somewhere

rosem32 · 11-10-2009, 01:57 AM

QUOTE (The Great NY @ Nov 8 2009, 07:33 PM)

Quote:

it could possibly be the O2's getting old. i was gonna say its for your intake, but your Gutted Airbox should not cause this.

maybe even a vacumm leak somewhere[/b]

It might be the little hose under the TB...mine was rotted.

11-08-2009, 05:37 PM	#1 (permalink)
CL21376 Learners License Join Date: Nov 2005 Location: Stow, OH Posts: 42 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	hi.... I got CEL P0171 last week...Removed and cleaned the MAF with aerosol electric cleaner and disconnected the negative battery terminal for a couple hours. 75 miles later I get the same code....Bought a new MAF and disconnected the negative battery terminal again for a couple hours. 75 miles later I get the same code. The guy at AutoZone was trying to sell me all new oxygen sensors, but I declined for the time being. Would O2 sensors throw a specific code if they were faulty? Is there anything else I should be looking at? I'd rather avoid taking my car in, if at all possible. Car is an '04 V6/MTX with 65,000 miles. Car is stock save for the a gutted air box (done ~45,000 miles ago) and a K&N replacement filter. I'm still running the original plugs/wires, although I would suspect if that was the issue, it would be a single or multiple cylinder misfire. Any ideas of what else I could look at? Thanks, chris __________________ Black 2004 6s 5-Door MTX Mazdaspeed Short Throw Shifter, Mobile 1 75W-90 Synthetic Transmission Fluid Gutted Air-Box, K&N Replacement Filter and when I'm not driving the 6.... 1994 SLP Firehawk (Car #251/500) LT1/6-Speed 40,000 Miles Stock--271HP/315 TQ Bolt ons/Dyno Tune--301/341

11-08-2009, 10:33 PM	#2 (permalink)
The Great NY Mazda Guru Join Date: Jul 2007 Location: Poughkeepsie, NY Posts: 4,499 Thanks: 0 Thanked 3 Times in 3 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	it could possibly be the O2's getting old. i was gonna say its for your intake, but your Gutted Airbox should not cause this. maybe even a vacumm leak somewhere __________________ Punisher 6 - Twin Turbo - 305whp, 303wtq @ 6.5psi - HATE IT OR LOVE IT, THIS IS JUST THE TIP OF THE ICEBERG "Nuthin To Prove, Just Watch Me Groove" COME OUT AND REP YOUR 6 FAMILY!!!!

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