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Yet another 323 GTX no start

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    Yet another 323 GTX no start

    okay so i just picked up a 1988 323 GTX.
    the owner was driving the car and it stalled out on him through an intersection.
    he trouble shooted it and found it was a bad fuel pump.
    he said he bought the pump, went to put it in, and realized the floors were done.
    at that point he didnt see much use in fixing the car, returned the pump and sold the car.

    now i have the car and trouble shooting it myself.
    the fuel pump didnt sound like it was coming on unless i gave it 12v directly.
    and even when i did, it would not start.

    when i crank it, it turns over but dose not catch.
    the first few turns it sounds like it is going to but after those, it just turns.

    im getting really good park to the plugs.
    im getting fuel to the fuel rail.

    i thought maybe the timing. i adjusted the distributor and it was further from starting.
    when i moved the other way it comes closer?

    i was thinking bad fuel pressure?
    when i take the plugs out they have fuel on them.
    could the injectors be not working correctly?

    bassically im just thinking aloud here hoping you guys will throw in some of your knowledge.

    let me know what kind of ideas you have.

    Thanks.










    #2
    I love the wheels. Make? Model?

    Are you getting a CEL? If so, what code is it? AFM?

    Comment


      #3
      im getting TPS code, i think is 12.
      Code 25, the solenoid valve for the fuel pressure regulator
      and Code 34, The BAC (Bypass Air Control) valve which is part of the Idle Speed Control System.

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        #4
        hey ... cant get much more local than this !! double check the grounds @ the ecu and that the ecu itself is grounded . crank then pull a plug and see if it's getting wet @ all .. or put a stethascope on the injectors and see if they are getting any signal @ all .


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          #5
          ok ya got fuel(your plugs are wet)ya got strong spark(at the plug wire ends & not just the coil,nows a good time to check youre vave timing.

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            #6
            Yeah i was thinking timing too. when i was playing with the distributor it was further from starting one way and closer to starting the other.

            is setting TDC easy on these engines? i do not own a timing light.

            and my ECU is just chillen on the floor. ill bolt it back in and make sure its grounded. lol

            PS: Holy ****t MazdaNoob your just around the corner from me. haha stop by and we'll shoot the ****.

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              #7
              you wont need a timing gun to set up your valve timing (but you knew that)go to ford laser.com and down load the b6t shop manual,its straight foward enough.

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                #8
                i have the 1988 323 service manual. it has the B6T chapter.
                in there i see the Ignition Timing procedure, i cannot find anything about checking the valve timing?

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                  #9
                  am i missing something in the manual?
                  if you have time please let me know the page its on. or even just save the pic and post it here.

                  If any one else has suggestions on what it could be Please post them!
                  anything at all would be better than nothing.
                  Thanks.

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                    #10
                    valve timing = timing belt on it's marks on tdc...... easy and slightly in-accurate way to find tdc is to pull plug 1 and put a LONG screwdriver in then manually crank the motor BY HAND and watch it rise and lower .. highest point + all the timing marks lined up on the timing belt pulleys and you are ok there pull the distributer cap off and #1 plug wire should be just slightly about to fire.



                    north end vine and scott


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                      #11
                      I havent had much time to trouble shoot the car due to long work days and cold weather.

                      However, i was doing some thinking and perhaps it could be the ECU that is keeping my car from starting.

                      i only get fuel when i manually give the pump 12v's. but even when it pumps its still not starting.
                      i could be wrong but its just a thought. i could try and put my ecu is another running gtx and see what happens.
                      maybe something related to the injectors?

                      i have no idea. haha

                      i was also thinking about running a standalone ECU. if anyone has any suggestions please tell me.
                      I hope to have it running by the summer with your help.

                      Comment


                        #12
                        well when u turn the car on it should prime your fuel pump then turn off till the car is started and running. sounds to me like problem with timing
                        "See that car, in the 80's that car was deadly." Random man to his son while passing the GTX in a parking lot

                        Originally posted by neuspeedescort
                        the proper spelling would be "Launchabilitiness" i do believe.
                        -88' Mazda 323 GTX, 1.8t, Modified Magazine May 2012
                        -88' Mazda 323 GTX, caged and ready for dirt
                        -93' Mazda Miata, half caged
                        -09' Mercedes C63 AMG
                        -87' Toyota Land Cruiser, 33's with slight lift, safari style!

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                          #13
                          when i turn on the car the primary pump does not come on. only if i manually give it 12v's. after a few seconds of the key beeing on the secondary pump comes on for a bit.

                          Comment


                            #14
                            The fuel pump is activared via the air meter,you have to either crank the motor over creating vaccuum or you take off the air filter and open the flapper door with your hand.The pump will kick on.

                            Comment


                              #15
                              +1 the ECU does not prime the pump like most cars do, VAF only or the pump jumper (if the GTX has it)
                              1991 Capri XR2 "GTXR2" BPT AWD Bastardization/conversion
                              1991 Isuzu Impulse RS Turbo AWD

                              Creator of the B6T Rocketchip
                              www.werbatfik.com

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