water/meth fail safe gauge question | AEM
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oldgringo
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water/meth fail safe gauge question

Greetings:  I just installed an AEM Water Meth fail safe gauge kit.  When ever I turn the key on, the gauge needle spins around and stops in a different place every time and not at the ZERO.  I read and reread the instructions until I was crosseyed but found no mention of this behavior or if it was normal.  Caveot: There is no pump or controller hooked up yet.  Hoping that solves the zeroing on the gauge.  Thanks, OG

oldgringo
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Hellooooooo.......(Echo).....

Hellooooooo.......(Echo).......no one at home.......anyone?  

"Once I thought I was wrong, but I was mistaken."

oldgringo
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Update:  I switched the plug

Update:  I switched the plug at the sensor from the recommended position with the cord coming out on the inlet side to coming out on the outlet side and got the system to work and the gauge at least moves with the pump RPM.

Now the gauge is not accurate.  The pointer takes a spin during key-on, but does not rest on zero.  The needle stops in a different place with each key cycle.  It does go to max rpm when the pump does.  I can not get a download of the calibration software because the down load link on the AEM web site is dead and does nothing when clicked on.  I have an email in to AEM and am awaiting for an answer.

"Once I thought I was wrong, but I was mistaken."

oldgringo
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LOL, I guess the old addage

LOL, I guess the old addage of always depend on yourself still holds true.  

ANSWER to above question is NOT in any instructions:  When ever you change out the gauge face, there is a VERY small needle stop just before the ZERO mark.  Be sure to transfer it to the new face, or else the needle can not zero out every cycle. 

I went to the old black gauge face and gently pressed out the plastic stop pin.  I drilled a small hole in a piece of wood for a back up and placed the new white gauge face (face down) on the wood with the little hole centered on the hole in the wood that I drilled.  Use needle nosed pliers to hold the pin straight and press down on the pin.  Press firmly. It will eventually start.  Press it down all the way.  Re-assemble the gauge. 

*When I now turn the key to ON, the needle stops at the pin and is zeroed ready to go!  Thanks to myself for the answer. (No one here at all or no one that cares.)

"Once I thought I was wrong, but I was mistaken."