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-   Porsche 924/944/968 Technical Forum (http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/)
-   -   O2 sensor question (http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/348539-o2-sensor-question.html)

unsigned 05-26-2007 04:15 PM
Quote:
Originally posted by DC9driver
Pulled the old one off today and the wires were brittle and cracked all the way to the connector.. Rather than screw with splicing the wires to the universal, I decided to just replace the whole damn thing with the OEM Bosch 13001. Did some shopping and found it cheapest (129.00) at Partstrain.com.

Good call. Sometimes that is the smartest way to go.

DC9driver 05-26-2007 04:31 PM
OK... Here are the results of my failed emissions test:

RPM 2500 - HC PPM 203 (Limit 220) PASS / CO 1.33 (Limit 1.20) FAIL
CO2 14.0%, O2 1.5%

RPM Idle (778) - HC PPM 541 (Limit 220) FAIL / CO 2.54 (Limit 1.20) FAIL
CO2 14.4, O2 1.8

So apparently 2500 RPM is close to passing and idle is terribly out of limits.. Gut tells me that it's got to be the O2 sensor right? seems like its very rich at Idle..

Should have the part next week.

DC9driver 05-26-2007 04:47 PM
Quote:
Originally posted by ERAU944
if you're going to do that every time you buy parts - you're going to be bending over a whole lot.
What's that? Buying the expensive OEM?

-9

nynor 05-26-2007 05:35 PM
does seem rich to me. likely it is the O2 sensor. i suppose it could also be the temp sensor.

blown 944 05-26-2007 06:26 PM
Check your tps adjustment as well if it is not adjusted right it will overide the idle map.

mlue 05-26-2007 11:23 PM
Re: O2 sensor question
 
Quote:
Originally posted by DC9driver
I Failed Nevada emissions (horribly) CFC and Co2 levels were nearly double (especially at idle) Car is running a bit rough and idling at about 750
Splice in a Bosch 13913 O2 sensor! Remember to crimp the connection, no solder.
Rough running you may want to unplug the sensor to see if the car runs better .. if it does then it is the O2 sensor... if it doesn't you have other problems you should make sure you do a tune up if you have not already done so and check for air and vacumn leaks.


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