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Help needed re: Check Engine light and fault code

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Old 07-02-2001, 11:38 AM
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Default Help needed re: Check Engine light and fault code
I came back from a 4-day trip yesterday, went out to drive my car, and voila! the Check Engine light is on.

Took my car to the dealer, they hooked it up to the computer, and discovered the following fault code:

17544 P1136
Bank 1. Mix too lean.

I know someone had posted about this a few days back, but I can't find the thread. Any thoughts on what this might be? I also have a corresponding drop in performance :-(

They scheduled me for an appointment to look into it, but not until August 2nd!!! They also offered to take my car, and work it into the service rotation if I were willing to leave it for a few days.

So, is it bad for me to be driving the car lean on one bank of cylinders?
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Old 07-02-2001, 11:40 AM
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Default I had the exact same problem last week. Turned out I had a faulty mass air sensor
and my DPVs were clogged due to bad gas.
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Old 07-02-2001, 11:44 AM
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Could also be a faulty O2 sensor since it's just one bank...
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Old 07-02-2001, 11:45 AM
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Default Could also be a vacuume leak!
Like your f-hose and throttle body boot.
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Old 07-02-2001, 11:51 AM
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Default DPV clogged? What's a DPV?
And how can bad gas clog them?
Thanks.
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Old 07-02-2001, 11:53 AM
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Default Vacuum leak from TBB???
As far as I know the TBB holds pressure, NOT vacuum.
.
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Old 07-02-2001, 11:53 AM
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Default Don't Pass Valve
"it's ALL ball bearings these days!"
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Old 07-02-2001, 11:53 AM
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unless your idling
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Old 07-02-2001, 11:56 AM
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Default They hold both, B4 pressure the Audi gods created vacuume.
There is only pressure when the turbos spool up, otherwise there is vacuume or atmospheric pressure aka 0.
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Old 07-02-2001, 11:56 AM
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Idling = closed throttle, right?
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