SOURCE: 1994 grand marquis runs rough / ck eng light
Replace Mass Air Flow sensor and PCV Hose/valve to establish new VREF.. lemmie know..
SOURCE: i have 2005 neon sxt keep having code po457 evap
fuel cap is just one of the causes. Here are 2 others:
NVLD switch communicates with your car's computer. A bad switch will throw a P0457 error code. Check for a vacuum leak 1st but if none is found, the NVLD switch should be changed.
Below is a link that explains more thoroughly what the module does; I do wish you the best of luck with your Neon and hope you found this information helpful. Take care!
http://www.search-autoparts.com/searchautoparts/article/articleDetail.jsp?id=377511&sk=&date=&pageID=3
SOURCE: Washed eng. This morning car was fine now at about
P1361: top dead center sensor circuit. The crank positioning sensor and cam positioning sensor are the two components that you want to look at. One of the two parts are cracked and the water is causing a short. Once it dries out, it should go back to normal but you do need to replace the faulty sensor/s.
SOURCE: 2003 town&country ck eng light on
p0455 is for evap leaks check hose on the passenger side by the fender under the hood a hose coming from the engine to the purge control valve one of the rubber hose is probably broken
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