confirm my assumption

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cronus1987

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Joined May 31, 2007

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358 Posts

Discussion starter · #1 · Jul 18, 2007

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Hey guys and/or gals, tell me if i'm right or not.

I just installed a volant intake a few hours later my CEL came on. I didn't realize why at the time, but i thought about it a little while later and realized i'd forgotten to reconnect the EGR (i think that's what it was) to the volant box. I plugged it back in, but the light hasn't gone off yet. I took it to autozone and they read the codes for me. Here they are.

P0133- O2 sensor, slow response

p0172- fuel mixture to rich.

I read the CEL code thread on here and it said EGR valve could be the culprit of the p0172. And autozone said that the P0133 was caused by the same issue as the p0172.

So i'm thinking everything should be fine now since i have the EGR tube plugged in again. Am i right or could it be an MAF sensor? (I have a spare MAFsensor if need be)

Thanks,
Chris

 

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Foci_Fosho

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Joined Apr 2, 2004

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4,946 Posts

#2 · Jul 18, 2007

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yes, now that you know the codes. The CEL should be off?
If not, you can safely clear them by leaving the (-) negative terminal of the battery disconnected for 15 minutes.

 

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cronus1987

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358 Posts

Discussion starter · #3 · Jul 18, 2007

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^^ cool man, thanks for the quick response.

If it IS something that's still wrong the CEL will just come back on, right? I shouldn't worry about clearing a code and then something going horribly wrong because i ignored it?

 

Duffman355

· Rebecca

2016 Focus ST, 2001 SVT Cobra Convertible

Joined Jan 17, 2006

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24,308 Posts

#4 · Jul 18, 2007

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i think you would be all right to clear the code cuz it will come back if something is screwed up. I doubt something is wrong though so you should be fine

 

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cronus1987

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358 Posts

Discussion starter · #5 · Jul 18, 2007

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well, that sounds good then. I shall do that very thing this instant (no seriously!).

alright. Thanks, guys!

 

Duffman355

· Rebecca

2016 Focus ST, 2001 SVT Cobra Convertible

Joined Jan 17, 2006

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24,308 Posts

#6 · Jul 18, 2007

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i'd say go for it

 

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cronus1987

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Discussion starter · #7 · Jul 21, 2007

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cleared the code, came back on 5 miles later. Haven't checked to see what code it is, but i assume it's the same. I'm gonna try changing the MAF sensor and if it's not that then it's probably a bad O2 sensor.

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