nicksubaru Posted June 25, 2018 Share Posted June 25, 2018 I have an 03 forester giving me the 2 codes for the o2 sensor. I have a 99 outback parts car. I was wondering if i could swap the exhaust system would it "Lego" together? The plugs the same? Would the ecu be "ok" with it or the sensors give the ecu different signals between the 99 OB and the 03 forester? This is in California and i need to smog the 03 forester Link to comment Share on other sites More sharing options...
idosubaru Posted June 25, 2018 Share Posted June 25, 2018 Ideally we know what codes we're discussing but if we rely on the diagnosis presented here and it is the sensors - why not just swap the sensor instead of the entire exhaust? quick ebay search shows the connectors are different. maybe you can splice the 03 forester connector onto the 99 oxygen sensors if they're the same number of wires. This listing suggests the sensors may be the same but have different connectors: https://www.ebay.com/itm/New-Bosch-OEM-Universal-4W-O2-Oxygen-Sensor-for-1998-2010-Subaru-Vehicles/380478459845?fits=Year%3A2003|Model%3AForester&epid=7005674554&hash=item5896488fc5:g:Pd4AAOSwajRZboeP 1 Link to comment Share on other sites More sharing options...
Mike104 Posted June 25, 2018 Share Posted June 25, 2018 Post the two codes here for better assistance. Link to comment Share on other sites More sharing options...
nicksubaru Posted June 25, 2018 Author Share Posted June 25, 2018 When i get home from work i will put the scanner on it. And post the codes Link to comment Share on other sites More sharing options...
nicksubaru Posted June 25, 2018 Author Share Posted June 25, 2018 With the ebay item, that makes me wonder what the difference between the front sensor and the back one? Link to comment Share on other sites More sharing options...
Mike104 Posted June 26, 2018 Share Posted June 26, 2018 Front sensor is an Air/Fuel sensor. Rear one monitors the efficiency of the catalytic converter Link to comment Share on other sites More sharing options...
nicksubaru Posted June 26, 2018 Author Share Posted June 26, 2018 But, is the sensor its self the same one? Link to comment Share on other sites More sharing options...
nicksubaru Posted June 26, 2018 Author Share Posted June 26, 2018 P0032 p0032 pd Not sure what the small "pd" is on the scanner. But that's what it shows. The scanner i used is a Bosch PocketScan Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted June 26, 2018 Share Posted June 26, 2018 pd likely means 'pending' - some DTCs won't set a CEL unless they have occurred more than once in some period of time. you may have a bad front sensor or bad wiring to it. Link to comment Share on other sites More sharing options...
GeneralDisorder Posted June 26, 2018 Share Posted June 26, 2018 Look up both sensor's on rockauto.com and compare the part numbers. They are almost certainly different. GD 1 Link to comment Share on other sites More sharing options...
heartless Posted June 27, 2018 Share Posted June 27, 2018 i would be willing to put money on them being different. i know some people have done the "splice" thing, but it has never worked out for me - I will spend the little extra to get the right one with the appropriate connector already on it just to save the headaches. 1 Link to comment Share on other sites More sharing options...
nicksubaru Posted June 27, 2018 Author Share Posted June 27, 2018 Thank you everyone for quick and helpful responses Link to comment Share on other sites More sharing options...
nicksubaru Posted July 4, 2018 Author Share Posted July 4, 2018 So with those codes p0032, what would be the way to test wires to it vs the sensor itself? Is the a resistance to test for on the sensor? If so whats the "good" range? The wires supposed to have 12v on one or something? Link to comment Share on other sites More sharing options...
Mike104 Posted July 4, 2018 Share Posted July 4, 2018 Page 6 and 7 give troubleshooting procedure for P0032 Diagnostic Procedure with Diagnostic Trouble Code (DTC).pdf 1 Link to comment Share on other sites More sharing options...
nicksubaru Posted July 7, 2018 Author Share Posted July 7, 2018 Ok, i did the procedure for p0032. (B136) number 6 and 17 read 2.7v it asks to shake harness and plugs, does it read more the 8v? No. Then says "end" so im at a lose. Link to comment Share on other sites More sharing options...
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