jonasblack
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- Feb 27, 2011
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alright here we go!
recently we had the transmission rebuilt, after that the SES light came on, it came up with the P0300 random misfire code, ive replaced all the plugs wires distributor and the distributor cap, the code went off. i took it onto the interstate, once i took it passed 75mph the SES light once again came on. i had it reset, drove it around town just fine keeping it under 60mph, then i took it back onto the interstate pushed it passed 75mph and once again the SES light illuminated. a good friend of mine told me it may be the fuel injectors, so i bought some treatment, put it into the tank, filled it up with gas, and low and behold! i fired up the van and IMMEDIATELY the SES light went off, until i once again pushed it passed 75mph then it illuminated again.
the van runs so quiet, so smooth so i do not think that it is a misfire anymore, the idle is dead quiet and not rough at all.
could it be the fuel pressure sensor? ekg sensor? bad cat?
does anyone have any sort of insight as to what it could be? it just boggles me that the only time the SES light comes on is after i pushed it passed 75mph, and then it stays on.
recently we had the transmission rebuilt, after that the SES light came on, it came up with the P0300 random misfire code, ive replaced all the plugs wires distributor and the distributor cap, the code went off. i took it onto the interstate, once i took it passed 75mph the SES light once again came on. i had it reset, drove it around town just fine keeping it under 60mph, then i took it back onto the interstate pushed it passed 75mph and once again the SES light illuminated. a good friend of mine told me it may be the fuel injectors, so i bought some treatment, put it into the tank, filled it up with gas, and low and behold! i fired up the van and IMMEDIATELY the SES light went off, until i once again pushed it passed 75mph then it illuminated again.
the van runs so quiet, so smooth so i do not think that it is a misfire anymore, the idle is dead quiet and not rough at all.
could it be the fuel pressure sensor? ekg sensor? bad cat?
does anyone have any sort of insight as to what it could be? it just boggles me that the only time the SES light comes on is after i pushed it passed 75mph, and then it stays on.