my tach is wigging out. yes, i used "wigging". it bounces around alot. can someone help me figure out the problem? i was told that it is the gauge, and i hope not cause that is spendy. is thare a sensor or relay? it drives me nuts!!!!

------------------
'92 Z28,t-top,PPG jet black,5.0L TPI,Auto w/stage 2 sft. kit,
michelin pilot 245/50/ZR16 tires,polished plenum/intake,flow tech 3" exhaust,PIAA driving lights

 

I'm fairly sure the tach it wired right to the coil (white wire on coil) just as an aftermarket one would be.

By 'wigging' do you mean it's jumping around RPMs randomly ? I'd start with making sure all ignition connections were clean & tight.

------------------

• my Formula Homepage
• Collision P/Ns & Diagrams (Nearly complete now!)

The mind is like a parachute, it only works when its open

 

yes, it bounces around, and the center of the travel is close to the corect reading.

------------------
'92 Z28,t-top,PPG jet black,5.0L TPI,Auto w/stage 2 sft. kit,
michelin pilot 245/50/ZR16 tires,polished plenum/intake,flow tech 3" exhaust,PIAA driving lights,2 kicker 10" comp vr subs,jl audio componet set in q form kick panels,kicker ix405d 5 chanel amp,pioneer deh-p735 deck

 

I have had the exact same problem before. The problem was the white wire coming out of the coil was loose. If you check all the connections then it might be the tack. They are cheap on ebay about $30 for a stock replacement.

------------------
1989 Iroc-Z 5.7 350, Blue, T-Tops
Lightly Moded:
Headers, Rebuilt B&M 700R-4 tranny, Airfoil, K&N's
-- Blue LED backlight Dash
"Just some 17 Year old spending every dollar I make on my car."