scott83

90 camero and the tach is off. always reads to high. what does the tach on these cameros run off of

wrightz28

Camaros use the negotive coil side.

92zcamaroperson

$20 says its the tach guage itself.

www.thirdgen.org and search in the forums for it. I have a bunch of posts in there too about it. To fix it you have to solder in a resistor but you have to find the right resistor value first.

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92 z28 camaro 5.7 TPI
current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace

waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers