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  • rodbolt need help

    working on a 2003 z200 hpdi 900 hr
    at a cold start up it will surge and stall,after it runs about 5 min at a fast idle its ok
    changed all gas filters
    plugs
    did a snyc & link
    check lp fuel pumps (no leaks)
    vst pump 60 lbs
    hp pump @ 475 rpm 690.52
    atmospheric pressure 30.2 in hg
    timing btdc 4 deg
    o2 sensor .10 v
    tps .61 v
    throttle valve oprning 2.3 deg
    injection duration 1.16 ms
    all cly fire in gear
    out of gear cly # 2 & 3 off
    compression between 115 and 110 lbs
    what shoud i do now
    thanks for your help

  • #2
    your o2 sensor voltage is way off.
    its lean.
    should be in the .4-.6V range.
    either the sensor is bad or an injector isnt working/flowing.

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    • #3
      what is the best way to check the o2
      how can i check the injector
      i do have ver 1.32 of the yds
      thank you for all your help

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      • #4
        1.32 will work fine with that engine.
        check O2 sensor heater voltage.
        not a good way to test injectors.
        test the engine temp sensor.

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        • #5
          water temp when scan with yds was 120.2 f

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