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Re: I think the fuel system frozen up, how do Ifix this...
If it feels like a fuel problem commonly causes the vehicle to surge at a constant speed on hyway use fuel line antifreeze in tank and make sure you replace fuel filter aswell try that first
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Sounds like a spark plug or wire issue. Anytime the vehicle starts to skip, die, or (run rough) its usually these minor things. However if that does not help, start looking into your fuel system. Always try cheapest first. Plugs and Wires....Good luck...
Did you check the timing? And how about timing advance?Water in tank from bad fuel? - happens all of a sudden - I think it is that based on description of what happened.
It Sounds like it is staying in the "cold start" routine. It also sounds like the diagnostic computer is not working right, because it must be rich and the O2 is not telling you a thing.
I would start by looking for a temperature sensor. You may have 2, with 1 being for the dash and the other being for the engine controls. You want to replace the temperature sensor for the Engine controls. This will help get it out of "cold start" routine.
Change your thermostat. The onboard computer does not monitor operating temperature.
Fuel pressure regulator. Have pressure checked.It could be forcing too much gas in each time an injector opens.
If you can not do this yourself, tow it in. At 2 mpg it may be cheaper to tow it than to drive any distance for repair. The Mechanics are going to need some gas left over in it to work on the engine.
Also turn on ignition and energize the fuel pressure, check for leaking fuel lines. Put on fuelcap locks if fuel drops when parked.
For this much of an extreme problem, I would like to know what you find wrong with it. I hope my solutions help.
LET IT RUN/OR DRIVE IT AROUND THE BLOCK. THE ENGINE COMPUTER MAY HAVE TO RELEARN HOW TO RUN AFTER THE BATTERY WAS DISCONNECTED. I HOPE THIS WORKS . THANKS MOTOR62500..
Do you have a check engine light on? Is this a 4.3 with central port injection? If it's running real rich it might have a fuel leak inside the intake, either a fuel pressure regulator leaking or a feed line to the injector.
P0301 = Misfire cylinder #1P0303 = Misfire cylinder #2 P0171 = System too lean cylinder #1 Are you sure on the P1151 code? I am thinking this may be a P0151 which is O2 sensor related. This looks like you have a fuel system related misfire. I would do a fuel injection cleaning service and then clear codes and see if the codes regenerate.
u need a special test gauge, it hooks to a test port on the supply pipe to the engine fuel injectors's, looks like a metal tire valve, u may be able to borrow this fuel pressure test guage from Kragen or Autozone, call them and check.
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