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Andrew.

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    89 pathfinder starts for few seconds than dies

    in 86.5-89 WD21 Pathfinders

    Posted

    Okay guys just received the mass air flow sensor in the mail. It was the problem cause i changed it and now it can rev past 3k and runs fine!! Thanks all!!!

     

    If anyone needs more detailed information on how I got my pathfinder that did not run at all to running! Cause I'm pretty sure I did everything possible to get it running 😂 Please ask! 👍

     

    Andrew 89 4x4 2door pathy

    • Like 2

    89 pathfinder starts for few seconds than dies

    in 86.5-89 WD21 Pathfinders

    Posted

    That's limp mode. Pull the codes from the computer

    Okay I turned my ECU on diagnostics mode than started the car, and both the red and green lights were blinking together like */**/***/****/***** and than starts over just counting up to 5.

     

    I don't know if that means anything? Or I did something wrong??

     

    And the * are the blinks, and the / are the pauses.

    89 pathfinder starts for few seconds than dies

    in 86.5-89 WD21 Pathfinders

    Posted

    Just because the TPS adjustment made the car sound better doesn't mean the TPS isn't toast. I don't remember if the last one I checked was via voltage or resistence but I think it was resistence. If you but an ohm meter on it the numbers whould go up smoothly, not in blocky chunks. Put a meter on it and see how it responds.

    Okay you think the TPS is probably the reason for the 3k rev limit?

    89 pathfinder starts for few seconds than dies

    in 86.5-89 WD21 Pathfinders

    Posted · Edited by Andrew.

    Okay update! It was the throttle position sensor that caused the the starting and dying problem. How I fixed the problem was I loosened the two screws that hold the TPS on the back of the throttle body (AKA carburetor) and it's almost like a distributor, you turn it and it changes the engines speed. So I adjusted it an till the engine sounded like it was running smooth. And it runs GREAT! But....it won't go past 3k still. I can drive it, but right after the needle passes the 3k mark it starts stalling. I think I have a bad Air Flow Meter ( at least that's what my repair manual calls it ) but it's the large rectangle sensor thing on the drivers side of the TB. Cause when I unplug the Air Flow Meter it doesn't change a thing! With AFM unplugged it runs fine, and won't go pass 3k.

     

    So my thoughts either bad AFM or bad AFM wiring. And I tested both my injectors and they work fine.

    89 pathfinder starts for few seconds than dies

    in 86.5-89 WD21 Pathfinders

    Posted

    I have an 89 V6 pathfinder with throttle body injection. Here's the story, the car would not start unless i poured gas down the TB and would ran fine an till it ran out of that little bit of gas. so long story short, my injectors were not firing at all. and the problem was one little wire going to the battery was broken off. So after i reconnected the little wire back to the battery it ran fine, so i drove it a short distance to a garage to put everything back so i could drive it home. I changed the fuel filter and oil, and oil filter. And that's all. Than when i went to start it again (after i had put the car all back together to go home) it would start for a few seconds and than die :mellow: but will run if i pump the gas, and will not rev past 3k.

     

    My ideas:

    Could one of the injectors be clogged?

    or be a clogged fuel line?

     

    What I don't understand is that it ran totally fine an hour ago! and now it don't :/

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