Question about 1999 Chevrolet Astro

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I am hooking up a remote start on a 99 Chevy Astro & can not find a tach wire.

I am hooking up a remote start on a 99 Chevy Astro & can not find a tach wire. Only 2 wires on coil (no white/black). everywhere I look says White wire on ECM on the BLACK plug labled WHITE. The plug on my labled WHITE is grey. Connector is clear when unplugged. Am I missing something?

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Hey I'm not an expert at remote starts I've only hooked up one in my life I have two of them one in my Durango & one in my Dakota Dakota was installed by best buy & Durango was installed by pc richards I'm not positive but I think tach wires are the same color on all remote starts and mine are purple the tach wire on the Durango is hooked to the #3 fuel injector wires & the Dakota wire is hooked to the coil but the tach wire is purple look back at installation directions you might have a defective remote start unit remember I said I'm not an expert I'm just going. By what I have I really hope this helped you oh by the way the van has an automatic tranny right? Good luck

Posted on Nov 24, 2014


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SOURCE: the new connector for the fuel pump 99 Chevy

One wire will be a common ground.  Depending on how much fuel you have in the tank you should receive a voltage from about 5 to 9 volts from the common ground to the fuel gauge - the other is the live to the Fuel Pump, typically - your 4 wire situation may be two grounds - one to each - put a fuse 10amp fuse in-line or disconnect the pigtail from tank and test for voltages and Zero resistance which would be the same as if you put both probes from your tester together and the meter shows "1" - if there is a problem or resistance then the reading will be "0" or the resistance value.  Be sure to use low Ohms setting or you may not get any reading.
This is of course - general info, from which should lead you to the answer you seek.
Good luck.
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Good luck.
There may be a ground that just connects to the tank itself - you can test for Ohms with a meter to determine if these are ground wires or must be determined.  Can check between negative to battery to 

Posted on Jun 11, 2010

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