im triing to find out wut the tach signal should be fo a s1 25. i tested it at the ecu and i dont get any read in volts or ohms. im installin a dakota digital tach converter but no signal. anyone have any imput? could it be bad ecu?
ok i have just put a new ecu in and still no tach signal. i have a friend who is a real good nissan mech.who is stump with this. can any1 help with this? i would really like to know my rpms
Modified by rhd240 at 4:39 PM 2/14/2010
rb25 tach signal
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FAST-DATSUN
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Re: rb25 tach signal (rhd240)
Nissan uses a very LOW voltage signal and needs a pull-up resistor or a MSD/AUTO METER tack signal converter to power most tacks.
Mack -
I have the same exact problem with my RB20.I have no signal coming from Pin 7 out of the ECU, no signal coming from the test port under the hood.
And I bought a Dakota Digital box and I couldn't get it working.
Could it be that my Ignitor is fried?
My Car runs fine free reving, but when loaded up it has a problem, until I hit boost.
Right now I'm in the middle of doing a LS2 coil swap.Hopefully it'll solve both problems....
Any thoughts???
I have the same exact problem with my RB20.I have no signal coming from Pin 7 out of the ECU, no signal coming from the test port under the hood.
And I bought a Dakota Digital box and I couldn't get it working.
Could it be that my Ignitor is fried?
My Car runs fine free reving, but when loaded up it has a problem, until I hit boost.
Right now I'm in the middle of doing a LS2 coil swap.Hopefully it'll solve both problems....
Any thoughts???
Re: rb25 tach signal (FAST-DATSUN)
i have the dakota digital tack converter but it says its not getting a signal. ive had alot of experience with dakota digital restoring antique cars so i figured id give it a try. is there a way to test it with out spending more money?