IHADAV8.com - Turbo Buick Tech, and Nonsense
Tech Area => General Buick Tech => Topic started by: Largewon62 on February 18 2017, 02:02:31 PM
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I am looking for a way to bypass the unreliable charge lamp circuit that is preventing charging on my 1987 Grand National. I know that there is a way to excite the field using a wire from the waste gate solenoid, but have not found a definitive guide to doing it.
Any tips would be appreciated.
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I'm all for the diy approach but I doubt you could buy the pigtails for what casper charges.
http://www.casperselectronics.com/cart/index.php?route=product/product&path=7_53_54_10_14&product_id=604It (http://www.casperselectronics.com/cart/index.php?route=product/product&path=7_53_54_10_14&product_id=604It) it was a no brainer for me to just send them the money.
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I'm trying to remember if its the low side or the high side of that solenoid that is PWM'd.
A ~470 ohm resistor to a switched 12v source was the basic field fix, wasn't it?
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Thanks for that info. I am aware of the Caspers harness, but I work in the gas fireplace industry and with the unseasonably warm winter we've had, I must mind my pennies until my summer gig starts. At almost $60 shipped, I'd like to make my own if I can.
I thought it was as simple as running a wire from the "i" terminal on the alternator to a switched 12v source like the waste gate solenoid?
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No, it needs a resistor in the line to drop the voltage a little. Otherwise, the alternator won't last too long. You can also just wire a instrument panel light bulb in series with the switched 12 volt feed.
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Looked at the diagram-The ECM controls the ground/low side so the other terminal is 12v