Wanting to know is there a way to wire Vl standard dash with rpm Tacho to ls1 motor I have all the dash work but not the rpms an I don't want aftermarket Tacho Thank you

I wpuld assume you would need to have a factory v8 dash and juat connect tje trigger wire

Ls1 pcm's put out a 4 cyl signal so it's gonna be a bit trickier than that . Maybe contact a local gauge place .

I didn't think PCM would be a option, Is it possible to splice into coil wiring straight to dash or should I just go buy a aftermarket tacho

Red plug , pin 10 , brown wire is tacho output signal . Save yourself the headache and fit an aftermarket tacho .

Can u change the pcm output in the tune?

Not sure, if you can change the output on PCM can someone let me know that would be much better

RB GEM. I run an Auto-Meter tacho in mine wired in with the Auto-Meter direct fire adapter as per Auto-Meter instructions but the tacho just flips out at WOT and goes spastic. Have you just wired yours directly to the PCM as you stated above without the adapter and snipped the wires on the tacho to suit 4 cyl?

I've bought one of these for the conversion in my V6 4runner. Haven't wired it in yet though so I can't confirm how well it works http://www.dakotadigital.com/index.c...127/prd127.htm (http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=127/prd127.htm)

Quote: Originally Posted by TUXEDO [View Post] RB GEM. I run an Auto-Meter tacho in mine wired in with the Auto-Meter direct fire adapter as per Auto-Meter instructions but the tacho just flips out at WOT and goes spastic. Have you just wired yours directly to the PCM as you stated above without the adapter and snipped the wires on the tacho to suit 4 cyl? I just started mine yesterday , haven't had it at wot . My gauges are are dakota digital and I've wired it to the pcm and changed the setting to 4 cyl . This is the right way to go about it

I might try this Dakota adapter, has anyone used it before seems like a easy fix, which wire on back of dash would u connect it too

Dakota adaptor works great took 10 min to install thanks for help