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AZBMW Forums › Model Specific Discussion › ///M Cars › chasing codes around
chasing codes around
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gt489
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PostPosted: Tue Oct 02, 2012 12:29 pm
Post subject: chasing codes around

ive been trying to get this check light problem solved. i have a 98 m3 sedan. i was getting p1188 and p1189 codes and now i have a p0121 code and the other 2 codes have gone away. asc light comes on and the car has a flat spot at very low throttle. checked all of the vacuum lines and other known problem areas. mods are as follows. dinan tb, dinan cai, dinan exhaust. thanks in advance

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kptaylor
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PostPosted: Tue Oct 02, 2012 12:52 pm
Post subject: Re: chasing codes around

www.permoveo.ltd.uk/ta...fault.aspx
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gt489
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PostPosted: Tue Oct 02, 2012 1:06 pm
Post subject: Re: chasing codes around

thanks. still chasing around codes though

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giantkeeper
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PostPosted: Tue Oct 02, 2012 1:13 pm
Post subject: Re: chasing codes around

gt489 wrote:
thanks. still chasing around codes though

I guess you expected we would go on that chase with you? I opened this thread and saw codes with no descriptions and promptly closed it. Why would we do all the work for you?

So you've identified what the codes mean?

Have you done searches for what the codes mean and what the rest of the world has done to address them?

How about bimmerforums? Their membership is tremendous and the depth of knowledge and documentation is (subjectively) better.

Have you made any changes or tested any equipment?

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gt489
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PostPosted: Tue Oct 02, 2012 3:22 pm
Post subject: Re: chasing codes around

thanks for the smart ass reply. if you opened the thread then closed it why are you back in here? ive done the research one all the codes and from what people seem to do is just throw parts at it. im not spending my money like that.

P0121= Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem

P1188 = Fuel control, bank-1, sensor-1 (cylinders 1-3, pre-cat O2 sensor)

P1189 = Fuel control, bank-2, sensor-1 (cylinders 4-6, pre-cat O2 sensor)

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kptaylor
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PostPosted: Tue Oct 02, 2012 4:29 pm
Post subject: Re: chasing codes around

What he's asking you is if the above link says it's more than likely the throttle position sensor, then have you tested or replaced yours? We're not mind readers...

If you've "done all of the research", then you must know what's wrong with it. Sorry for trying to help you out.
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bastarde38
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PostPosted: Tue Oct 02, 2012 4:32 pm
Post subject: Re: chasing codes around

:popcorn

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gt489
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PostPosted: Tue Oct 02, 2012 4:48 pm
Post subject: Re: chasing codes around

all i was trying to ask for was some ideas. maybe i could have explained my problem a little better but ive done all the thing ive been ready on other forums and it testing ok.

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KINGAMR
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PostPosted: Tue Oct 02, 2012 5:43 pm
Post subject: Re: chasing codes around

When did this problem develop? Have you smoked the car? How long have you had the Dinan TB on? Any tuning done with this mod? sounds like a throttle body issue that is also affecting the ASC throttle body/system.

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gt489
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PostPosted: Tue Oct 02, 2012 5:55 pm
Post subject: Re: chasing codes around

KINGAMR wrote:
When did this problem develop? Have you smoked the car? How long have you had the Dinan TB on? Any tuning done with this mod? sounds like a throttle body issue that is also affecting the ASC throttle body/system.

this p0121 code just came up yesterday. tb has been on for a little over a month now. p1188 and p1189 codes started right before i put the tb on. the codes dont usually set the light until about 30 miles after the gas tank has been filled. sounds weird but thats when it usually happens

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bastarde38
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PostPosted: Tue Oct 02, 2012 8:08 pm
Post subject: Re: chasing codes around

go back to stock. leave it there. problem solved.

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there / they're / their ...then / than ...two / too / to ...bass / base ...bare / bear ...brake / break...braid / ??? ...you're / your ...do / due / dew ...patients / patience ...wait / weight ...affect / effect ...know / no ...sell / sale / sail / cell ...whole / hole ...reign / rain ...moot / mute ...its / it's ...pore / pour / poor ...buy / bye / by / bi ...lose / loose ...here / hear ...bore / boar / boor ...waist / waste ...were / we're ...and / an ...mourning / morning ...shelve / shelf ...well / we'll / will ...one / won / Juan ...who's / whose ...through / threw ...for / fore / 4 / four ...bored / board ...steel / steal / still ...scene / seen ....road / rode ...sight / site / cite ...mat / matte ...ascent / ascend ...tear / tare ...throw / throw ...vice / vise ...meat / meet / mete ...learn the difference
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gt489
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PostPosted: Mon Oct 15, 2012 12:05 pm
Post subject: Re: chasing codes around

so the codes p1188 and p1189 came back. ive checked everything from the maf bacf for leaks and couldnt find any. only throws the code about 30mile after filling the gas tank

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kptaylor
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PostPosted: Mon Oct 15, 2012 2:11 pm
Post subject: Re: chasing codes around

1188 & 1189 are O2 sensor(s), usually. YMMV.
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gt489
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PostPosted: Mon Oct 15, 2012 2:15 pm
Post subject: Re: chasing codes around

YMMV? i have changed the tb back to the stock one and cleared the codes. should i do a battery reset?

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kptaylor
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PostPosted: Tue Oct 16, 2012 12:57 pm
Post subject: Re: chasing codes around

YMMV = Your mileage may vary.

Those codes usually mean your O2 sensor(s) are bad. Key word is "usually".
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