Contour Enthusiasts Group Archives Forums Modifications Zetec Maintenance Got some problems

Hey guy's, Long time no see. CEG would not work with my net untill i updated my drivers on my router, now it works.

Anyways, I went to AutoZone because my check engine light was on. I got some codes.

P0171
and
P0420

I did a search and found out what both were. My cat is prolly clogged, But my MAF is brand new, but its still throwing off this code??

Thank's,
Josh

maf is brand new...did u happen to have a dirty air filter on the car?...i notice sometimes i get comebacks after doing a service on a car for insufficent maf due to the change after i threw in a nice new filter

I get or had PO171 for a long time.
I have cleaned the MAF several times. Replaced the upstream O2 sensor twice. Replaced several vacuum lines. Replaced the air filter. ECT, IAT, MAF both O2 sensors are working correctly.
This past week I replaced all the injector O rings because they were leaking air on the intake stroke.
So far I'm at 270 miles at about 1/4 tank left.
For me the code comes and goes every 6 weeks or so about every 1100 miles, it appears while accelerating up to 70 or so, or while crusing at 70 or so, it has never came on during city driving.

Anyways good luck with your code it has been nothing but a massive headache for me since August.

K, same here,

I did get some O2 and some air flow data from my Carchip.

Anyone willing to look at it for me tonite?

lloyd_vfp@msn.com

Going to take it to the dealer tomorrow

(bends over) lol

If I printed this out, will it help them?

Yep I have the same problem same code comes up my CEL has been on since Sept. a day after the dealer warrenty expired, and I had it read like 5-6 times once at the place I got my timing belt and water pump replaced, and others at autozone, all came up same code. Replaced upstream 02 censor, and replaced air filter and also cleaned MAF censor 2 or 3 times didn't work and I seen a service bulletin for the MAF censors and it has the code it brings up for that (P0171, thas what code mine read) so its gotta be MAF censor.

Jason G.

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Pacific Green/Teal Mist 97 Mercury Mystique 4 Banger, runs great, CEL on since Monday Sept. 13th. hopefully gonna fix that problem in the next week or sooner.

LINK TO RECALLS AND SERVICE BULLETINS WEBSITE:
http://www.alldata.com/TSB/36/97363479.html