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Thread: Tach not working like it should
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07-10-2010 #1
Registered User
- Join Date
- Feb 2008
- Location
- Texas
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- 302
Tach not working like it should
It shows its idling at 1500 rpms and the needle vibrates up and down at 1500. If I rev it it works fine. Its hooked up with the tach wire with a 1/2 watt 680 Ohm resistor. I'm using a 5" autometer gauge in 4cyl mode.
This is what I'm going by - http://www.lt1swap.com/pictures/tach_circuit_fix.jpg
Could it be cause the resistor is a 1/2 watt and not a 1/4 watt?
Got any ideas?http://www.youtube.com/user/cutlassrkt?feature=mhee
69 cutlass - 5.3l L33, Jakes stage 3 4L80e, 275/40/17 proxes tq
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