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Old 08-06-2007, 05:49 AM   #1
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CEL with p1124 and p1126 with rough idle

Hey Folks,

I have a CEL with p1124 and p1126 with inconsistent/rough idle.

I have cleaned MAF and replaced fuel filter.

I have had p1124 in the past couple years(3-4 times), cleaned the MAF and code cleared and does not return for 6-12 months.

I have white/grey smoke on startup and above 3k RPMs....this is a new symptom.

Any ideas on next steps?

1998 boxster
62k miles
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Old 08-06-2007, 05:57 AM   #2
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two separate issues: time for a new maf and a new oil separator.
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Old 08-06-2007, 06:14 AM   #3
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i had those as well, on a 98 with 62k, it was the MAF.
it got bad to the point where i couldn't even get the car out of the driveway.
after those i started getting 1128 and 1130, so MAF change fixed all 4 codes.

good luck
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Old 08-06-2007, 06:58 AM   #4
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two separate issues: time for a new maf and a new oil separator.
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Hi, I agree
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Old 08-06-2007, 08:18 AM   #5
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Dj,



with the MAF did you have a hrd time starting the car then after a while it would start up fro letting cooling down?
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Old 08-06-2007, 10:11 AM   #6
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The car always starts fine. Just smoke and rough idle and of course error codes.
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Old 08-06-2007, 10:13 AM   #7
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Insite and Franco,

You are saying the AOS because of the smoke?
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Old 08-06-2007, 01:21 PM   #8
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Quote:
Originally Posted by nzaldivar
Insite and Franco,

You are saying the AOS because of the smoke?

HI, yes chances are the AOS is letting oil into the throttle housing, a quick verification you can do is to check for any oil around the throttle housing near the clamps and tubings located on top of engine. I would take care of the AOS first and then wait and see if you still get any codes, oil in th e throttle could set off a CEL.

Regarding the MAF, I changed mine and the car performs much better at all RPM's so if you have the cash change it and you won't regret it.

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