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19Pathy94se30

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Posts posted by 19Pathy94se30

    Transmission Operating Temp

    in 90-95 WD21 Pathfinders

    Posted

    Thank you very much!!! I had been scouring the net but apparently not in the right places. I think because of the shotty stock transmission cooler system it’s making my engine over heat on the trail but street driving it’s fine. My plan is to buy an external cooler and fan assembly and a temp controller as well but I wasn’t too sure what the range was. I hope this helps future folks as well!!


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    No reverse

    in 90-95 WD21 Pathfinders

    Posted

     
    if you're using the rear diff, you better use the front diff as well, different gear ratios in the front and rear when you engage 4 wheel drive would be EPIC bad.

    When you swapped the transmission did you have to change over the transmission shift module as well? Or are they the same?


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    EGR Delete

    in 90-95 WD21 Pathfinders

    Posted

    Probably more trouble than it's worth to take the harness apart and remove it entirely. I'd just push the wiring back against the harness it comes out of and wrap it with electrical tape, if you can access that harness without major surgery. Otherwise, zip-tie it to something else so it doesn't flop around. Insulate the ends if they're cut just so they can't cause new/interesting issues down the line. Out of sight, out of mind, but still there if for some reason you end up needing it again, and one less thing to check if you have electrical issues in the future.
     
    And yeah, mine was nasty too. I knocked out most of the crusties and put it back on. EGR's not a bad idea on paper but it's no surprise that hot combustion byproducts leave deposits on (comparatively) cold surfaces and cause problems.

    Thank you very much sir


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    wiring issue

    in 90-95 WD21 Pathfinders

    Posted

    The alarm system shouldn't be able to cause all that. It's got a cutoff for the starter (or my '93 did at least, my '95 didn't, though it had probably been tampered with), and taps into the marker light circuit, but AFAIK there's no tie-in to the ECU or power windows. May well share a fuse link with that stuff, though.
     
    Also in case you didn't know, the other module (the rounded one with the lines) isn't alarm-related, that's the ABS computer.

    ABS huh? O_o yea I think I will throw that back in there. But it’s funny there was no abs light on the dash? Unless me completely removing it won’t cause a light. Nevertheless I will be putting that back in.


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    EGR Delete

    in 90-95 WD21 Pathfinders

    Posted

    Sounds like you have a California-emissions truck. What I'd do is look for an ECU from a 90-95 donor with the same transmission and federal emissions.

    Those two wires on the EGR valve are for the EGR temp sensor (only found on California models only AFAIK), and if that's open or shorted, the computer will throw a code 35 (so no, jumping those won't help). You may be able to fool the computer with a resistor (the manual says the sensor should read about 85k ohms at 212°F), but I wouldn't be surprised if the ECU still threw code 32 (EGR function) afterwards. I'm not sure what all goes into setting code 32. The manual says to check the EGRC solenoid, vac lines, and the valve itself, so my best guess is that the ECU looks for temperature increase/decrease when the valve is opened/closed. Neither of mine have/had EGR temp sensors, so I doubt either would notice the absence of the EGR valve. I haven't done an EGR delete, though, so I can't say firsthand what works.

    How carbon-choked was the EGR valve when you removed it? Sounds like it might've been stuck open.

    Thank you for this comment. It was fairly choked up that was the main reason why I went and did the delete in the first place and yes unfortunately this is a California rig. I think I may follow your advice and and go off and get me a federal ECU off of a washington rig. As for that plug, I wonder if there is a way to completely remove it from the harness or should I leave it there?


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    wiring issue

    in 90-95 WD21 Pathfinders

    Posted

    fb1d4657c3cc0d5d517087c5288355d2.jpg
    I too had that same issue but it wasn’t in the harness by the battery. My old factory alarm system was giving me all kinds of hell. Slow start, dim lights, stumbling like crazy, very slow windows. As soon as I ripped this crap out that all went away. It was all located under the driver seat.85a5fb951e9e297f455dd366e2b5054b.jpg


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    EGR Delete

    in 90-95 WD21 Pathfinders

    Posted

    I did it on a 92 without problem. Did you plug the vacuum lines that ran to the EGR?

    I’m sure I did. I will go through them again tho. There was also a 2 wire plug that had plugged into the unit as well. Did you just leave that hanging or did you jump the two?


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    EGR Delete

    in 90-95 WD21 Pathfinders

    Posted

    Hello all!! I am a fairly new member but have owned my Pantyfinder for about 10 years now. I have just recently moved to a state that doesn’t require smog. So upon arrival to said state I went ahead and deleted the EGR, added a set of Doug Thorly headers and a cone air filter. Upon doing the EGR delete now I have a check engine light because of it but have gained a considerable amount of hp back and fuel economy has gone up. I was wondering if anyone else has done the same and if there is a way to trick the truck and making the check engine light go off instead of sending the ecu out to have it reprogrammed? I’ll post pictures soon. Thanks

     

     

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    Replacement injectors

    in 90-95 WD21 Pathfinders

    Posted

    Is there a thread on replacement injectors for a VG30E?
     
    I have a 91 pathfinder, with a VG30E, that I’m trying to register and get back on the road in CA. The ECU is sending out diagnostic code 51, the check engine light is on. 51 is the only code.
     
    I am thinking of replacing all of the injectors. Are Denso better injectors? Do higher flow injectors require mods to the ECU? Can I pass emissions in CA with higher flow injectors?
     
    Is there a thread or threads y’all can point to on this?
     
    Thanks.
     
     
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    I too need info on this!!!!


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