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Old 06-13-2010, 11:19 AM
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diagnosis help needed

hello i have a 94 s10 with a 2.2 auto trans the motor and trans were rebuilt 40000 km ago.

The problem i was taking a trip to the city dump which is around the highway so
i was driving at about 110 km per hour i reach the dump and slow to about 30 km when the vehicle looses power and dies. I try to crank it and no luck. If i wait a while i can crank it and it will start and idle and shortly stall but if i try to rev it up it will stall out imedieatly. i jumped the obd2 to flash out a code and got a coolant temp sensor code.after replacing it is gone but the same problem is present.

The things i have checked were:

Plugs brand new
plug wires newer
coolant temp sensor new
alt is charging
battery has charge
fuel pump comes on

i do have mitchell on demand and following the steps it has lead me to the cts sensor which was what the code was i replaced it and the problem is still there do i need to reset the code first perhaps ?

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Old 06-13-2010, 12:50 PM
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I would replace the fuel filter first, then I'd check to make sure during the dead times that you've got fuel pressure at the fuel rail/injector (install a 5 dollar manual pressure guage in the line). If you're low on pressure and you have a new fuel filter, you need a fuel pump.

Good luck-

K
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Old 06-13-2010, 02:45 PM
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Quote:
Originally Posted by killerformula
I would replace the fuel filter first, then I'd check to make sure during the dead times that you've got fuel pressure at the fuel rail/injector (install a 5 dollar manual pressure guage in the line). If you're low on pressure and you have a new fuel filter, you need a fuel pump.

Good luck-

K
you haven't got dirt & grime in gas tank , i hook the wires backward making the pump spit out the dirt , then clean tank out and re install all , pull the bed , makes it easy on the s-10
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Old 06-13-2010, 05:17 PM
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Just for the ease of it, take a pair of vicegrips and clamp the rubber return line (past the pressure regulator). Easy check to see if it may be faulty reg.
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Old 06-13-2010, 07:17 PM
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Quote:
Originally Posted by burnt olds
you haven't got dirt & grime in gas tank , i hook the wires backward making the pump spit out the dirt , then clean tank out and re install all , pull the bed , makes it easy on the s-10
If that works for you then that's great, but I think I'd avoid having to disassemble the whole back of the truck if I could. Also, I don't see the reason to reverse the fuel pump? Debris is captured in the filter, not the pump...

K
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Old 06-14-2010, 07:42 PM
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i intend to grab a new filter tomorrow i will also hook up my preesure gauge and get a reading at the same time. I dont believe the problem is fuel though it idels now when i start it in park but if i give it gas to rev it up it sputters and dies still no code again though
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