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  1. Troubleshooting
    Hey y'all, I just put a new EJ25 into my 2000 RS coupe, and everything has been seemless on startup, except for one engine code, P0327: Knock Sensor 1 Circuit Low Input. I was worried aout this, because I actually had to splice in a new knock sensor from another intake manifold harness because...
  2. Troubleshooting
    I have a cel on in my '98 2.5 RS. It says fuel tank pressure control system high input. I've located what I believe is the fuel tank pressure solenoid valve. It's mounted to the passenger side of the fuel tank. I think this may be causing the cel. The sensor is rusty and gross. My boyfriend was...
  3. Troubleshooting
    So I bought a 97 WRX with a Check Engine light. Code 24: Air Idle Control Valve or circuit fault apparently. The car has a fluctuating Idle at just under 1500rpm and fuel cut enabled obviously from the fault. Sometimes the Idle will smooth out for short periods of time and I think it's when...
  4. Troubleshooting
    Hello, im new here. So my new to me Australian 1997 WRX, EJ20G has a check engine light for the Idle control valve or circuit. I only found out now after buying it becasue someone removed the CEL bulb from the cluster. I took the valve off and cleaned it but nothing changed. I had it idling...
  5. N/A Tuning
    O2 Sensor Heater Control Circuit → Low (B1S2) WHEREEEEEE is this sensor even located?? I can't find any plugs coming from the STOCK exhaust besides one and that's the front upstream sensor... the exhaust doesn't even have a plug spot for another sensor anywhere!!?? ej251, the car was...
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