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Error codes help
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TOPIC: Error codes help
#50038
Error codes help 9 Years, 7 Months ago Karma: 129
Ok i am getting two error codes on my Rev 3 turbo the car it in a rough on idle rev at 500rpm and sometime cuts out

21 - Oxygen Sensor Signal
I took this out today and cleaned it, it was very black


_KUNENA_BBCODE_HIDEIMG

47 - ABS

I took out the EFI fuse for 30 minutes

Car still showing up the error codes after all of this

I have read up that if i

Engine bay
Remove: 7.5A ECU-B
15A EFI Fuse

Front Compartment
Remove: 7.5 ECU-B

Remove these and wait 20 minutes this will re-set the ECU
Peggyontherun
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#50039
Re: Error codes help 9 Years, 7 Months ago Karma: 106
have you tested the oxgyen sensor with a multimeter?
eringobragh
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#50040
Re: Error codes help 9 Years, 7 Months ago Karma: 129
Nope
Peggyontherun
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#50041
Re: Error codes help 9 Years, 7 Months ago Karma: 106
Peggyontherun wrote:
Nope

FYI:


_KUNENA_BBCODE_HIDEIMG

stolen:

The Guide in the BGB is good but don't expect the O2 sensor to start working after 120 sec on idle from a cold start. Take the car for a drive for 10 minutes or so to get it working. It will read about 0.7V at idle directly on the sensor or at the sensor input to the ECU unless it has failed completely.

Here is a good link.

http://www.ngksparkplugs.ca/tech-info-oxygen-sensors.cfm#os6
eringobragh
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Last Edit: 2012/10/09 22:08 By eringobragh.
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#50043
Re: Error codes help 9 Years, 7 Months ago Karma: 328
Depending on what you cleaned that sensor with it now might be funked because you cleaned it.

The only real way of telling if the O2 sensor is gone is with an oscilloscope but the guide below is the only way to do it at home, work for me before and worth a Kc to Eringobragh. You have Kc.
slipsliderg
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#50169
Re: Error codes help 9 Years, 7 Months ago Karma: 8
am, for code 47, was that during the engine diagnostic test or abs test cause code 47 is TPS in engine diagnostics....

code 21 is either a break in OS circuit or shagged OS.. do a continuity test from OS connector to ECU as said above
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