Question about 1988 Toyota SR5 Xtracab

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1988 Toyota XTRACAB SR5 engine starts but stops immediatley

I have looked over the vacuum lines for leaks, changed all the plugs and wires to brand new Bosch, as well as renewed the ignition coil. The air filter was very dirty so I replaced it with a new filter. The engine will start but stops immediately. I plan to replace the fuel filter next, but that is not listed as a possible remedy in the Haynes manual.

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  • stevenbrick Dec 27, 2008

    EFI (electronic fuel injection)

  • stevenbrick Jan 02, 2009

    Ok, I got a fuel pressure tester and the pressure from the tank before it goes into the filter is 40 psi and bleeds off very slowly after the engine is cranked. I also jumpered the diagnostic terminals together in the diagnostics port to acquire the "check engine code" The code displayed was "12". According to my Haynes manual the code "12" means no RPM signal from the distributor within in 2 seconds after engine starts. I checked the resistance of the signal generator (pickup coil) in the the distributor and the resistance is within tolerance so that should be a good part. According to the Haynes manual if everything checks good like the distributor parts and the coil, then the ignitor should be suspect. I would like to know if the ignitor signal to the ECU enables the fuel injectors to work or if this signal has nothing to do with the injectors working to supply fuel? The engine does run when I have someone start the engine while I spray starter fluid into the throttle body air intake port. I can keep the engine running with starter fluid!

    Thank you,


  • Toyota Ed May 11, 2010

    I would doubt that the fuel filter is going to do you any good.

    Carb or Fuel Injection?



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Get somebody to crank the engine while you are under the vehicle with a rubber mallet. Hit the bottom of the tank while it is cranking. You have a may have a seized fuel pump...If that does you no good, look on top of the tank, and look for a broken/rusted wire at the top of the tank, where the fuel lines come out. It is VERY common to see this wire rust off.

Posted on Dec 29, 2008

  • Toyota Ed Jan 02, 2009

    Do the spark plugs spark blue-white when held 1/2" from a known good ground?

  • Toyota Ed Jan 02, 2009

    Code 12:

    Open or short in NE circuit


    Open or short in STA circuit


    The igniter does spark. The ECU delivers the injection.


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I have not fixed the problem yet but I did install a new fuel filter and also ran the engine on starting fluid while another person turned the ignition key for me. Now I am pretty sure I have a fuel delivery problem. I will disconnect the line from the fuel tank and see if fuel comes out when I turn the key on.

Posted on Dec 27, 2008


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