P0300, P0301, P0303,P0305 codes
4 codes showing, TID $11 & $35 show failures.. But I wouldn't think O2 Sensors would
throw a random and a whole left bank on a distributor fired vehicle.
Wires, Plugs, Cap, & Rotor. Coil was replaced a year or so ago for other reason.
Vacuum at idle is 20.2 - 20.5
MAP readings confused me 40psi at 1800 rpm & 5.8psi at idle.
Still thinking its a vacuum issue.
Fuel pressure at rail is 48psi within limits of the 44-54 range. Have not deadhead tested
Also have not done road compression test.
CEL went out after Seafoamed intake and full tank of 93 octane.. problem resumed with
Have a ton of Mode 6 data still deciphering. The data compiled is aimed at EGR which
vehicle isn't equipped with. or Vacuum leak which is what I am still trying to narrow
I bought this truck new at 3 miles now 187,000.... Has hit every service interval since
Anyone shed some light on what I am missing or go with the gut that tells me
Thank you for any help you could provide.
All those codes are misfire codes. P0300 is a general code for a misfire, P0301, is cylinder #1, P0303, is cylinder #3 etc. Check your ignition coil, spark plugs, and wires.
Coil is year or so old, Plugs, cap, rotor, & wires are 2 months old.
OK, then it has to be a vacuum leak. Start the car , open the hood and start moving some hoses around and maybe you will hear a leak. Spray some carb cleaner around and maybe the idle will increase. If that is OK, last step is check the battery. How old is it? Voltage?
Did some more digging found this thread. It just might be your smoking gun......http://www.dakota-durango.com/forum/showthread.php?t=161766
Thanks. Battery is 3yrs old. Load tests very well. Still holding at 98%. Charging system seems good too. Will try the carb spray. Thanks for the thread will check it out.
Fuel Injector could be misfiring, try cleaning the injector.
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