My car was parked for years I replaced the fuel and the filter and flushed out the throttle body and it started fine then it sat 2 weeks and the batt was dead so I had it on a charger it started I got out and unhooked the charger and it died the batt was fully charged at that point I tryed to restart it and now it turns over and starts but it dies in 1-2 seconds
I checked it with acode reader and I get code 12 that means the computer is ok .it looks to me like its getting to much fuel
any suggestiong please help im at witts end
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Make sure battery is fully charged.turn key to run position listen for fuel pump hum.if no sound coming from tank check relay,remove breather spray small amount of starting fluid into throttle body try to start if it starts and dies replace fuel pump and filter and strainer.also check for spark
I would want to know if it is ignition or fuel for sure. There are a few things you can try to narrow down the possible cause.
What does the cap and rotor look like, and is the spark a strong blue when it is running rough ?
Have you checked the actual fuel pressure with a gauge ? Does it matter if you spray carb cleaner or starting fluid into the throttle body ?
Any trouble codes stored in the computer ?
Its possible the coolant temp sensor is wrong and the computer thinks the air temp is 90 degrees instead of say 20 degrees. Or there is moisture in the dist cap or on the plug wires, and so on.
Is the check engine light on when the engine is running ? Someone will need to check for spark on all cylinders and fuel pressure. You might try spraying carb cleaner or starting fluid into the throttle body to boost fuel supply and see if it helps. If it does that would tell you its a fuel problem.
Did you check to make sure fuel is getting as far as the filter? Detach the fuel line at the filter and have someone crank the engine. If fuel doesn't get to the end of the line you've got a clog somewhere else or there's a break in the fuel line.
What about fuel? Was fuel in the tank when the car was parked years ago? If so, the system has to be flushed and cleaned out, from and including the gas tank to the carb or injectors (all fuel lines). Have you checked for fuel and spark?
My 92 Bird with the 3.1 did the same thing after it sat for about 2 months. The car had aways started right away before. I had to jump start it and I thought it would never start.Same as yours after it started. Seem to get better after I ran it awhile. It was getting good spark and was getting fuel. I checked fuel pressure, it seemed to be within specs.then it started to sputter and the pressure dropped to almost nothing. Seems that the fuel pump was going bad, but still would pump enough fuel at times to run. When the car was parked the fuel pressure would bleed off, and when I tried to start it the pump had trouble pumping enough fuel to pressure the system.Long story short! Replace the fuel pump, and filter.....
check for vacuum leaks at your throttle body, intake manifold gaskets and vacuum line, or you could possibly have a sticking valve. if I am understanding you rite the truck sat for 2 years. also check the wiring to your sensors as for a rodent may have chewed some insulation off, this happened to my sons car.