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GQ TB/TD tacho signal. What voltage & waveform?

Tech Talk for Nissan owners.

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Posts: 175
Joined: Tue Apr 27, 2010 6:29 pm
Location: NSW

GQ TB/TD tacho signal. What voltage & waveform?

Post by patrol_maverick »

Does anyone know what voltage and waveform (AC or pulse DC) the TB and TD tacho signals are? And hows many pulses per engine revolution? A screen shot of an oscilloscope would be handy if anyone has one.

Alternatively, does anyone know if an Autometer tach adaptor will control either TB or TD factory tacho's?
Wanted:
-FG Falcon sump & oil pickup (6 cylinder)
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Joined: Sun Aug 23, 2009 9:55 am
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Re: GQ TB/TD tacho signal. What voltage & waveform?

Post by VooDoo »

I was trying to find the same info for a 75 series troopy with a 3F
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Posts: 175
Joined: Tue Apr 27, 2010 6:29 pm
Location: NSW

Re: GQ TB/TD tacho signal. What voltage & waveform?

Post by patrol_maverick »

All sorted. Can't help with the Toyota though..
Wanted:
-FG Falcon sump & oil pickup (6 cylinder)
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Joined: Fri Jun 29, 2007 7:57 pm
Location: yatala, halfway between brisbane and GC

Re: GQ TB/TD tacho signal. What voltage & waveform?

Post by love ke70 »

maybe you could enlighten the rest of the board as to what the solution or your findings were?

at the end of the day you could get your factory tacho adapted to suit the sender you have, if it is not easily matched.

Cheers, Andy
97 GQ patrol coilcab. TD42, safari turbo kit with fiddled turbo, D-GAS kit. dyno results to come...
4inch lift, king springs, efs and procomp shocks
315/70R16 cooper ST's
found fuel economy...
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Re: GQ TB/TD tacho signal. What voltage & waveform?

Post by garth »

yep X 2.....i couldn't figure it out either!
GQ with 30 PSI of TD42T.........
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