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Setting the AMM ???????/LH.2.2 200 1988

uid 17010's pic
posted by  tvg on  Sun May 1 08:19 CST 2005
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last visit: Mon May 21 14:10 CST 2007
[RELATED]

The adjustment range is 0 - 1000 ohms. With the engine warmed up you adjust the screw so that your led blinks at ~ 50% duty cycle. Basically you are tuning the the amm to agree with the O2 sensor. The O2 sensor controls the mix after it's warm, but until then the amm is in charge and you want it to give a mix that is the same as what the O2 sensor would. I don't remember which way you'll have to turn the screw but if you count turns you can try each direction and always get back to where you started.
Good luck,
Tom





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