Question about 1997 Nissan Pathfinder

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Changed mass air sensor still stalling 1997 nissan pathfinder

Stalls out when you stop but starts up also chugs when you accellerate

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  • oldtymer37 Jan 26, 2009

    yes except fuel filter, am thinking maybe the mass air sensor which is a remanufactored may be bad

  • oldtymer37 Jan 27, 2009

    thanks for the info will try this weekend, if no luck will probably take it to the shop

  • Shane Peterson May 11, 2010

    Try putting a new fuel filter on. also a cap and rotor too. the way you describe this leads me to think it's a simple problem. the store you got the sensor from will likely have you try other solutions like this before they let you exchange the sensor anyway

  • Shane Peterson May 11, 2010

    Have you done a tune up on it (spark plugs, wires, fuel filter, air filter)?

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As a factory Nissan trained Technician with dealership experience - it can be many things, but it sounds alot like a mis-adjusted or faulty TPS, and/or a faulty IAC(Idle air control) valve - I'd try the TPS and set to appx. .50 vdc (.47/.49) Volts DC and if that isn't it, I'd definitely look to the idle air control valve ( allows for air bypass - sometimes called bypass air control valve). May then need base timing and idle set at shop with OBDII ignition disabling option, for seting timing and idle, otherwise computer won't allow proper setting...then if connector to IAC is OK - should be just fine...

Posted on Jan 26, 2009

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