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Car Forum / Ford / Ford Cars / April 2006failed emission help please??
does anyone have a direction to point me in to fix my 92 grand marquis(4.6)failed emissions,car seems to be running great, HC standard is 0.80(car tested at 1.26) CO standard is 15.00(car tested at 22.70) put new plugs and pcv and air filter in,any more ideas would be welcome, thanks > does anyone have a direction to point me in to fix my 92 grand > marquis(4.6)failed emissions,car seems to be running great, HC standard > is 0.80(car tested at 1.26) CO standard is 15.00(car tested at 22.70) put > new plugs and pcv and air filter in,any more ideas would be welcome, > thanks O2 sensor(s) wouldn't hurt. Double check your numbers too. Do you mean hc was 126ppm? CO was huh? >> HC standard is 0.80(car tested at 1.26) CO standard is 15.00(car tested at 22.70) Does your state test for NOX? Nitrogen oxides... http://www.autoshop101.com/forms/h56.pdf Read the above link, my guess is your engine is running too rich due to poor vacuum and/or gasket sealing, which allows umetered air into the combustion process, thus elevating fuel consumption. Very common problem... >does anyone have a direction to point me in to fix my 92 grand >marquis(4.6)failed emissions,car seems to be running great, HC standard >is 0.80(car tested at 1.26) CO standard is 15.00(car tested at 22.70) put >new plugs and pcv and air filter in,any more ideas would be welcome, >thanks Have you cleaned the MAF, IAC and throttle body. The numbers would suggest it is running rich for some reason. The MAF would be a likely candidate. There are sites on the net on how to clean it including pictures. Lugnut >does anyone have a direction to point me in to fix my 92 grand >marquis(4.6)failed emissions,car seems to be running great, HC standard >is 0.80(car tested at 1.26) CO standard is 15.00(car tested at 22.70) put >new plugs and pcv and air filter in,any more ideas would be welcome, >thanks Dead cat? > does anyone have a direction to point me in to fix my 92 grand > marquis(4.6)failed emissions,car seems to be running great, HC > standard is 0.80(car tested at 1.26) CO standard is 15.00(car > tested at 22.70) put new plugs and pcv and air filter in,any more > ideas would be welcome, thanks 1. Clean the MAF thoroughly.. directions everywhere.. dont be afraid of it... use a CLEAN/new med bristle brush and rubbing alcohol. about ten brush-ons/rinses wil make sure. 2. New primary O2 sensors cant hurt... never had that problem, but then again, I dont run 'just any' brand name gas. 3. Replace Fuel Pressure regulator DEFINITELY - Change OIL, run out on freeway for about 20 minutes day before... then again, within hours before you take it in again. You have done PCV, good.  SignatureYeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price you pay..DEAL with it! >> does anyone have a direction to point me in to fix my 92 grand >> marquis(4.6)failed emissions,car seems to be running great, HC [quoted text clipped - 15 lines] > > You have done PCV, good. And, btw.. have the codes read out and post then here.. not the def's, the codes SignatureYeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price you pay..DEAL with it! |
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