[StephenHallman]

I can't seem to get this error code to go away. It started as an oxygen sensor code which was replaced and now the oxygen regulation code. I've since cleaned the MAF very thoroughly and replaced the air filter for good measure. Not sure where to go from here. Everything is stock/old at 120k miles.



Thanks

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[flash]

did you clean the MAF connector? did you make sure the MAF was completely dry before starting the car or turning the key? did you then follow the code clearing procedure afterward?

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[StephenHallman]

I looked at the MAF connector but was unsure how to go about cleaning it so I did a simple blow on it. It looked clean for the most part. I didn't want to bend anything as I know how costly the MAF is. I waited 10 minutes and then reattached the MAF and didn't drive the car until the next day. I unplugged the battery for about 30 minutes to clear the code. It didn't come up with a 1-5, it was just a solid check engine light. This is the second time cleaning the MAF. I had the error code cleared at my mechanics shop after the first time I cleaned the MAF.

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[flash]

well, i think you found your problem - you have not cleared the codes - if you don't get a 1-5, it isn't clear - to clear them, turn the key on, and hold down the accelerator for 11 seconds - then do the blink test and you should get a 1-5



to clean the MAF connector use contact cleaner on the contacts of each connector - wait until dry to reconnect

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[StephenHallman]

As I had thought. For some reason my car will not reset the check engine light with the accelerator trick. I've tried it every possible way a million times. No go on it. I'm still not sure it is that because I did have the mechanic reset it after I had cleaned it.

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[flash]

hmmm - when he reset it, did you get a 1-5?



well, i have the durametric here, and could probably read what is going on, and certainly could reset the code

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[StephenHallman]

I may have to take you up on that but want to try a couple things first. I'm going to try disconnecting the battery again, and unplugging the DME and seeing if that gets it to reset. Think changing the DME relay may help assuming it does fully clear but the error comes back?

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[flash]

if you disconnect the DME (not the DME relay) it will clear the codes - disconnecting the DME relay will do nothing

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[StephenHallman]

Okay, so I disconnected the DME and it cleared the code. I got a 1-5. But now after driving to work the oxygen regulation still comes up <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" /> I'm out of ideas.

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[flash]

is it a constant code or an intermittent code (what is the second digit?) 1123 or 1223?



if it is a constant code, the oxygen regulation code is designed to pop when there is a condition of mixture that is out of spec limits (way too rich or way too lean) - this can be a maf getting hit with too much air, a bad fuel regulator, a vacuum leak, a clogged fuel rail, a clogged catalytic converter, or a major exhaust leak



what is not stock?



have you been in there monkeying around and dislodged or damaged something?



does the car run normally, or are there symptoms?

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[banditsc]

Check all your vacuum and breather lines. Trace them from end to end to verify both ends look correct and not loose or detached.

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[StephenHallman]

Intermittent- 1-2-2-3. It doesn't come on until I get to the freeway(about 15 miles later) and have been driving a bit and then it's off and on.



Everything is stock except for a K&N air filter I put in a week ago but this code has been coming up for about 4 months. Well... It started as an oxygen sensor code that was also intermittent, and then now the oxygen regulation once the oxygen sensor was replaced.



I don't touch anything in there. This is the most i've ever done myself to the car. I'm quite proud of myself actually.



Car runs normally, a bit slow maybe. Nothing really has ever seemed out of the ordinary even with the oxygen sensor error code(again it was maybe a bit slower).



Even my mechanic doesn't really touch anything. I've only ever had him do the timing belt, pinion bearing, oxygen sensor and oil changes. My car hasn't needed anything else.

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[flash]

can you pop up here on saturday?

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[StephenHallman]

Yes I can. I'll send you an e-mail.

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