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1997 Honda Accord – Has…. Spark, Fuel, Compression – Crank, No start

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  • #887827
    KevinKevin
    Participant

      1997 Honda Accord – Has…. Spark, Fuel, Compression – Crank, No start
      The car ran and drove just fine… no mechanical problems or failures to date, parked the car the night before, next morning would not start.

      Things I checked:
      All fuses and relays, Fuels pump and injectors, Coil and distributer, Spark and crank shaft PS, main relay, ignition switch, ECU, battery, Cam, timing belt, Cold car compression Dry; 128,130,125,120, Wet:140,140,135,130…(no check engine light)
      I checked above items with test lights, volt meters and compression kit ( I also have a twin to this car that runs and drives and is only 2 vin numbers off) I started switching ecu and main relay and other parts to see if I could get it to start… Nothing

      There is a local auto shop I called and they have a mobile mechanic department that will come out to your house to look at your car… the cost is $75… They have sent two different guys over two different days with different scanners and tools… they checked all the same things I did and now ALL three of us are lost…
      Any help would be appreciated, Thanks

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    • #887831
      Billy AndrewsBilly
      Participant

        Check sensors – crank, cam, TDC

        #887871
        RichRich
        Participant

          You’ll need to systematically eliminate possibilities. It doesn’t appear you’re doing that.

          Your car needs seven things (and only these seven things to start):

          1. Fuel
          2. Air
          3. Spark
          4. Mechanical Timing
          5. Electrical Timing
          6. Exhaust
          7. Compression

          Start with any one of these categories, then systematically eliminate it by performing tests.

          Often, the order is chosen by difficulty in doing the diagnosis – there are no clear indications of what is the trouble (or it’s your first time).

          For example…

          Fuel is easy to get a quick read on. Check your fuel pressure with key-on-engine-off. Are you within spec? Don’t guess, and don’ just assume that because you see fuel when disconnecting the line that pressure is sufficient. If you don’t know the spec, look it up.

          You say you checked “fuel pump and injectors.” That’s not the same as measuring your fuel pressure.

          Air is often overlooked. Is there any blockage in your air intake? If you crank while holding down the accelerator, does the car start (bypassing the IAC valve)?

          And so on.

          This video will teach you a system that works every time for diagnosing these problems yourself systematically:

          #887962
          KevinKevin
          Participant

            Thanks for the video, My goal is to check each one of these items off one by one and we have done most of them already. But we will start from the bottom again and work our way up.

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