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Thread: Resistors to eliminate solenoids?

  1. #1
    boostaholic
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    Resistors to eliminate solenoids?

    Would it be possible to use resistors to eliminate solenoids if i'm not using them? I know you can do it with the solenoids in an srt-4, just wondering if possible with our solenoids?
    -Jim Too many cars, not enough time..

  2. #2
    Super Moderator Turbo Mopar Staff contraption22's Avatar
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    Re: Resistors to eliminate solenoids?

    I know Gary Donovan did it on his Reliant.....

    Anybody have a problem with that? lol
    Mike Marra
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  3. #3
    The moderately moderate moderator Turbo Mopar Staff
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    Re: Resistors to eliminate solenoids?

    The computer won't know if it is a solenoid or a resistor as long as you get the resistance close to what the solenoid runs. Match that and it should be fine.
    Bryan
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  4. #4
    boostaholic
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    Re: Resistors to eliminate solenoids?

    So, if you ohm out the solinoid you would want a resistor with the same resistence. Is that correct ?

  5. #5
    The moderately moderate moderator Turbo Mopar Staff
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    Re: Resistors to eliminate solenoids?

    Yes. You want it to be as close as possible.
    Bryan
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  6. #6
    turbo addict
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    Re: Resistors to eliminate solenoids?

    I did this with my CSX and no problems. Just ohm it out and head to radio shack

  7. #7
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: Resistors to eliminate solenoids?

    my solenoids on my cars are ~30 ohms.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  8. #8
    boostaholic
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    Re: Resistors to eliminate solenoids?

    Ahhh PERFECT! I had to leave all that crap plugged in after my rebuild...and it looks like crap just hanging there..i should of thought of that! Thanks!

  9. #9
    boostaholic
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    Re: Resistors to eliminate solenoids?

    what solenoids are we talkin' here? EVAP ones?
    Pete Faggella 03 PT Cruiser, 2.4L N/A 5 speed. Daily driver. All stock with baby moon wheels. 85 LeBaron 2.2TBI auto. Hoped I'd see a difference with bumped compression, but I didn't. Still slow. "Life should not be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!'"

  10. #10
    boostaholic
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    Re: Resistors to eliminate solenoids?

    I am thinking the wastegate one...and the evap one..

  11. #11
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanmanČ's Avatar
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    Re: Resistors to eliminate solenoids?

    Just turn it off in the cal,
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  12. #12

    Re: Resistors to eliminate solenoids?

    It turns out that you don't have to use a resistor that is close to the load of a solenoid. It can be significantly higher resistance, which means you don't have to buy a large power resistor. A 470-ohm 1/2W will work fine. I've used as high as 1k, which can be as small as 1/4W.

    The way the ECU checks for shorts and open circuits is that it only checks to see that the circuit goes low when it drives it low and that it goes high when it is not driven.

  13. #13
    The moderately moderate moderator Turbo Mopar Staff
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    Re: Resistors to eliminate solenoids?

    Quote Originally Posted by MiniMopar View Post
    It turns out that you don't have to use a resistor that is close to the load of a solenoid. It can be significantly higher resistance, which means you don't have to buy a large power resistor. A 470-ohm 1/2W will work fine. I've used as high as 1k, which can be as small as 1/4W.

    The way the ECU checks for shorts and open circuits is that it only checks to see that the circuit goes low when it drives it low and that it goes high when it is not driven.
    You are correct, Russ. I usually tell people to get one close to the same so they don't put a 50 ohm resistor in place of a 5 ohm component. Burnt wiring smells funny.
    Bryan
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  14. #14
    turbo addict
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    Re: Resistors to eliminate solenoids?

    With the solenoids unplugged does it throw a CEL? Im pretty sure I had my boost solenoids unplugged and got no CEL but the bara solenoids unplugged did throw a cel.

  15. #15

    Re: Resistors to eliminate solenoids?

    Yes, there are fault codes for each of the solenoids.

  16. #16
    turbo addict
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    Re: Resistors to eliminate solenoids?

    The thing is that if you use a smaller ohm resistor that you need to use the correct wattage(as clase as you can get) to what the solenoid would use otherwise you stand a chance of burning out the resistor. If you use a higher ohm resistor the wattage becomes less of an issue simply because of the way the computer checks the circuit and the fact that it is a low voltage/amperage circuit anyway.

  17. #17
    turbo addict
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    Re: Resistors to eliminate solenoids?

    Quote Originally Posted by turbovanman View Post
    Just turn it off in the cal,
    +1 to turning it off in d cal

  18. #18
    Garrett booster
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    Re: Resistors to eliminate solenoids?

    i've been searching with no luck, what about CODE 41, alternator field error, can we disable this too? how!!!??? thank you!

    i am interested since i have an external voltage regulator. and it would be great to really use the KR CEL mod.

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