al 965

Where would be a good source for betting a tach signal on a 92 turbo inside engine bay, The black/violet wire in EZ69 harness or just piggyback on to coil + terminal?

stu.p

If its for data logging or a rpm solienoid switch you could use the black/violet wire on the nearest to the rear round plug on your ez69 unit
__________________
Porsche inspector for Peter Morgan UK
http://www.petermorgan.org.uk/inspection.htm
"92" 964 turbo,recently rebuilt using all ARP hardware.Modified heads,SC cams 1 bar boost,headers,wastegate/ tial 0.8 spring to acheive 1 bar,cat bypass,own adj wur,rpm switch,powerflow air intake..bilstein hd with h&r springs,front carbon strut brace

al 965

Thanks STU.P I will let you know. Also rec. PM thanks

al 965

STU.P Do you know a good route to get a wire from engine bay into drivers compartment to access the black/green wire under drivers seat?

Black_Hat

I ran mine with a big wire harness that goes through the firewall ..its under the pass rear seat
if you pull up the carpet its on the vertical part between the floor bord and the horizontal seat .
I was able to feed a wire and boost signal line without cutting anything ....everything can be put back so no one can tell it was there .

stu.p

Yeah through the firewall then i went down under side trim
__________________
Porsche inspector for Peter Morgan UK
http://www.petermorgan.org.uk/inspection.htm
"92" 964 turbo,recently rebuilt using all ARP hardware.Modified heads,SC cams 1 bar boost,headers,wastegate/ tial 0.8 spring to acheive 1 bar,cat bypass,own adj wur,rpm switch,powerflow air intake..bilstein hd with h&r springs,front carbon strut brace

Francisco Martinez

For other's future reference, the wire to tap behind the tach is black/violet. Did it for the Zeitronix and worked, don't forget to set the Zeitronix multiplier to 6.

Got this from somewhere on the internet, thanks to whoever found the info...

Wire List*
From To Color**
OBC Pin #
1 Pin #4 of clock (+12V power) red
2 Stock tach harness pin #2 (ground) and OBC stalk pin #1 brown
3 Stock tach harness pin #3 (turn signal LH) black/white
4 Stock tach harness pin #4 (high beam) white/black
5 Stock tach harness pin #5 (turn signal RH) black/green
6 Stock tach harness pin #1 (lights) gray/blue
7 Not used -
8 Temp sensor pin #1 blue/green
9 Central indicator (informer) pin #7 beige connector (fuel signal) brown/black
10 Temp sensor pin #2 brown/green
11 Not used -
12 Pin #2 of speedometer (speed signal) white/red
13 Pin #4 of connector behind LH kick panel (door armed signal) green/white
14 Stock tach harness pin #7 (tach signal) orange
15 Stock tach harness pin #2 (ground) brown
16 Not used -
17 Not used -
18 Not used -
19 Not used -
20 Not used -
21 Stock tach harness pin #6 (tach signal) black/violet
22 Pin #6 harness under seat from DME (TI signal) white/green
23 OBC stalk pin #2 white
24 OBC stalk pin #3 green
25 OBC stalk pin #4 blue
26 OBC stalk pin #5 gray

Metal Guru

It's much easier to use the black/green wire in the 6 pin connector under the driver's seat. This will allow an easy connection to an LM-1 RPM converter in the cockpit without having to bring a wire through the tunnel/center console. Just solder a wire on top of the pin and re-assemble the connector. I recorded 10.7 V at 0 rpm and I estimate that voltage at 7000 rpm is 1 V.