Tach In-Op
03-23-2014, 10:36 AM
#1
Staging Lane
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Tach In-Op Hey everyone, I was hoping someone can help me. I am finishing up our LS2 swap and out Tach is not reading the output from the 06 Trailblazer computer. I have the tach set to 4 cylinder as per the instructions and I have tried it with and without a step up resistor. I used a 10K ohm and a 1K ohm.....
Still no signal.
I was wondering if I could use a Auto Meter tach adapter on one bank and leave the thach set to 4 Cylinder.....?
Still no signal.
I was wondering if I could use a Auto Meter tach adapter on one bank and leave the thach set to 4 Cylinder.....?
03-23-2014, 03:17 PM
#3
On The Tree
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I used a 680ohm resistor for my swap. PCM signal and 680ohm resistor with 12v are Y'd to my tachometer which is set to 4 cylinder. I ordered 680k(680,000ohm)resistors at first and wondered why it didn't work.