Tach wiring help! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

beater_240sx · 04-17-2005, 08:19 AM

I have a Defi tach with the control unit, The power and the illumination is wired up no problem. I tried to wire up the tach signal to the ecu, nothing. Then I read about how the digital ignition systems do not send the correct signal. So I bought an MSD tach adapter. Tried hooking it up to the coils like they said to, and nothing, then tried hooking it up to the ecu and nothing still. I am lost!!!

1989 240sx Fastback
with SR20DET

Please Help!!!
Ive searched and havent come up with squat!

beater_240sx · 04-17-2005, 08:32 PM

no help???

beater_240sx · 04-18-2005, 05:42 AM

No on has ever wired a tach to an SR20???

ohnobigtdawg · 04-18-2005, 01:35 PM

apparently not buddy.

beater_240sx · 04-22-2005, 06:45 AM

Okay,

I got the tach to get movement when it revs but its displayed wrong and it doesnt move much. Hooked it up to the tach adapter. So I am still in the same position...

No help from no one...

I guess I have another question then. Were does the tachometer signal wire hook up to on the engine. Or, where does it hook it up to on the gauge cluster. So that Might help... I'm searching...

DoonCoonVaroon · 04-22-2005, 09:25 AM

isn't there some place where you have to tell it how many cylinders you have?

beater_240sx · 04-22-2005, 01:21 PM

Yeah, its on the side of the control unit, thats not it...

04-17-2005, 08:19 AM	#1
beater_240sx Join Date: Mar 2005 Location: Michigan Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	Tach wiring help! I have a Defi tach with the control unit, The power and the illumination is wired up no problem. I tried to wire up the tach signal to the ecu, nothing. Then I read about how the digital ignition systems do not send the correct signal. So I bought an MSD tach adapter. Tried hooking it up to the coils like they said to, and nothing, then tried hooking it up to the ecu and nothing still. I am lost!!! 1989 240sx Fastback with SR20DET Please Help!!! Ive searched and havent come up with squat! __________________ image exceeds forum limits -Moderation

04-17-2005, 08:32 PM	#2
beater_240sx Join Date: Mar 2005 Location: Michigan Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	no help??? __________________ image exceeds forum limits -Moderation

04-18-2005, 05:42 AM	#3
beater_240sx Join Date: Mar 2005 Location: Michigan Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	No on has ever wired a tach to an SR20??? __________________ image exceeds forum limits -Moderation

04-18-2005, 01:35 PM	#4
ohnobigtdawg Zilvia Junkie Join Date: Nov 2004 Location: Cerritos CA Posts: 423 Trader Rating: (0) Feedback Score: 0 reviews	apparently not buddy. __________________ MR. Pibb + Red Vines = Crazy Delicious You can call us Arron Burr by the way we droppin Hamiltons!

04-22-2005, 06:45 AM	#5
beater_240sx Join Date: Mar 2005 Location: Michigan Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	Okay, I got the tach to get movement when it revs but its displayed wrong and it doesnt move much. Hooked it up to the tach adapter. So I am still in the same position... No help from no one... I guess I have another question then. Were does the tachometer signal wire hook up to on the engine. Or, where does it hook it up to on the gauge cluster. So that Might help... I'm searching... __________________ image exceeds forum limits -Moderation Last edited by beater_240sx; 04-22-2005 at 07:52 AM..

04-22-2005, 09:25 AM	#6
DoonCoonVaroon Join Date: Apr 2005 Location: T DOT Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	isn't there some place where you have to tell it how many cylinders you have?

04-22-2005, 01:21 PM	#7
beater_240sx Join Date: Mar 2005 Location: Michigan Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	Yeah, its on the side of the control unit, thats not it... __________________ image exceeds forum limits -Moderation