June 26, 200817 yr Cruise Limit : HC (PPM) 220 CO (%) 1.2 Cruise Emissions: 462(FAIL) 5.13 (FAIL) Idle Limit: HC (PPM) 220 CO (%) 1.2 Idle Emissions 1192(FAIL) .44 (PASS) Anyone have a idea on whats going on or anyone had this problem with theres.... engine was rebuilt 50,000 ago and is still tight very little blow by runs smoooth no misses..... turbo still alive and kicking no oil leaks or burning im at my end with this subaru it's about to go to the Junk Yard
June 26, 200817 yr Cruise Limit : HC (PPM) 220 CO (%) 1.2Cruise Emissions: 462(FAIL) 5.13 (FAIL) Idle Limit: HC (PPM) 220 CO (%) 1.2 Idle Emissions 1192(FAIL) .44 (PASS) Anyone have a idea on whats going on or anyone had this problem with theres.... engine was rebuilt 50' date='000 ago and is still tight very little blow by runs smoooth no misses..... turbo still alive and kicking no oil leaks or burning im at my end with this subaru it's about to go to the Junk Yard[/quote'] Let me ask a question(possibly stupid). Is it all stock, or are there any modifications done? Patrick
June 26, 200817 yr MAF and/or O2 sensor? CTS telling the ECU to run open loop/cold enrichment? Leaky injector? It is running way rich, for some reason.
June 26, 200817 yr I would try replacing the 02 sensor and if its a 86, it has the flapper style MAF. Not much to clean on that but the door linkage.
June 27, 200817 yr i had the same problem with my last EA82T. when it was at idle the O2 sensor would go flat, then run rich. to fix it i put in a heated three wire O2 sensor. then it flew through emmissions. just a good new sensor may have worked but i had a custom downpipe with no cat or heat shelds. i think the cat in the downpipe helps keep it up to temp at idle. -=Suberdave=- www.suberdave.com
June 27, 200817 yr Also check your ignition timing, I ran with 35degree BTDC for a while (no it wasn't intentional and no it didnt detonate or knock) and it had immense HC emissions, like 1400PPM at idle So make sure yours is at 20/22 degrees @ 700rpm.
June 27, 200817 yr i had the same problem with my last EA82T. when it was at idle the O2 sensor would go flat, then run rich. to fix it i put in a heated three wire O2 sensor. then it flew through emmissions. just a good new sensor may have worked but i had a custom downpipe with no cat or heat shelds. i think the cat in the downpipe helps keep it up to temp at idle. -=Suberdave=- www.suberdave.com I took the upper cat off of my old EA82T and put on one hotter cat. It passed with flying colors. If I were you I'd try just changing the oil as well and make sure the car is good and warmed up before running the test.
June 27, 200817 yr o2 sensor +1 Check the cycle count or just make sure it's toggling with a multimeter.
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