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fuel troubleshooting stock 91 integra b18a1

Discussion in 'General Tech and Maintenance' started by vanillakilla, Jun 20, 2006.

  1. vanillakilla

    vanillakilla Senior Member

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    alright I need some input. I rebuilt my motor, set the valve lash started it let it idle for 20 mins and and turned it off because I had really bad valve tick. the next day set the valve lash again and drove it. the motor makes a really loud tick under load and at idle. The motor over heated due to my failure to clamp down the heater hoses. so I started it again and got it home and let it idle while I figured out where the coolant was leaking from. I found the leak and clamped the heater hoses down and I made sure the motor didn't overheat again while doing this. I go to start it again and it started but had trouble starting and then it stalled 20 seconds later and won't start. when I spray carb cleaner in the intake manifold the motor will fire which means it is a fuel issue. My dad thinks my ECU is bad which is causing my injectors not to open but I'm not sure. it is not my main relay either I replaced that and nothing happened. tommorrow I am going to check the fuel filter, fuel pump, and I would like to try a different ECU but I don't want to buy one just to have it not fix the problem. I also tested my resistor box for the injectors and its fine.
     
  2. GSRCIVICTN

    GSRCIVICTN Lost in a sea of rednecks

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    That loud tick could be detonation from a lean condition which would go hand in hand with your fuel theory.
     
  3. vanillakilla

    vanillakilla Senior Member

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    okay fuel pump is not pumping so I replaced it with a known good one and it still didn't pump. tested electrical connections and it is getting power. I jumped the connections from the ignition and the fuel pump at the main relay and the fuel pump got really hot. I tested the wires with a volt meter and they're getting 12.6 volts. I replaced the fuel pump again with another known good one and it still wont build any presssure at the fuel filter. I checked all fuses and I am checking connections and grounds again. why would 2 fuel pumps that are known to be good and are getting 12.6 volts not pump? anybody have any ideas
     
  4. vanillakilla

    vanillakilla Senior Member

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    Okay it starts and runs there was some sort of ground that wasn't wasn't hooked up and now all is good.
     
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