How To install an Aftermarket Tach in a 96-98

jst98stang · January 17th, 2008, 09:01 PM

Good post man.

ThePope · February 16th, 2008, 09:29 AM

You didn't happen to buy that setup from someone on sn95forums did you?

MustangMatt96GT · February 16th, 2008, 11:05 AM

Maybe!

still works great, but my Digital MSD tach on my window switch it reads a 100 RPMs less.

black97GT · February 20th, 2008, 06:49 PM

Great write up, does wiring of oil pressure and water temp gauges work the same way, or do I need to install the senders the gauges came with?

ujslost · February 20th, 2008, 07:15 PM

oil pressure and water gauges have their own senders that need to be installed. unless they are manual gauges which are totally differant

MustangMatt96GT · February 20th, 2008, 08:36 PM

98SilverStang · February 21st, 2008, 09:04 PM

matt where did you get your tack from.. im looking for one but dont wanna pay like $200 for it. if you know of anyone who has one let me know

jlaw98gt · February 28th, 2008, 10:28 AM

there all over ebay for under 50 bucks......matt where did you get that bracket..i looked on upr and i couldnt find it...

BlueStangGT · May 1st, 2008, 09:16 PM

Bringing this one back up...

I just did this install on my 98 and the tach reads roughly double the actual RPM. I got in contact with Autometer, they told me to connect the green wire to pin 48 of the ECM. I thought this was the same signal as pin 8 of the white cluster connector but did it anyway and got the same results. Tach model is 3911:

Auto Meter

Any ideas?

joshh · May 4th, 2008, 04:16 PM

hey blue it sounds like ur tach is set up for a 4cyl motor look to see if the loop wires on the back are cut?

BlueStangGT · May 5th, 2008, 09:22 AM

Originally Posted by joshh

hey blue it sounds like ur tach is set up for a 4cyl motor look to see if the loop wires on the back are cut?

Nah, they're good. I'm sending it off to Autometer, they think it may be bad. I double and triple checked everything.

January 17th, 2008, 09:01 PM	#21
jst98stang Newbie Join Date: Jan 2008 Posts: 7	Good post man. __________________

February 16th, 2008, 09:29 AM	#22
ThePope Newbie Join Date: Apr 2007 Location: Queens, NY Posts: 17	You didn't happen to buy that setup from someone on sn95forums did you? __________________ 1998 Ford Mustang GT - 5 Speed - Flowmaster Catback - Cold Air Intake

February 16th, 2008, 11:05 AM	#23
MustangMatt96GT I Post Entirely Way Too Much 1996 Mustang GT 14.631@93.51 @ 5800 FT Join Date: Dec 2006 Location: Lakewood, CO Posts: 6,997	Maybe! still works great, but my Digital MSD tach on my window switch it reads a 100 RPMs less. __________________ We expect shit to break, look foward to realizing exactly when it is happening, and than obsess about dropping plenty of cash to rebuild stronger, so we can try to run it hard as hell and break again. We are sick individuals.

February 20th, 2008, 07:15 PM	#25
ujslost MM Fanatic Join Date: Mar 2007 Location: Albertville, AL Posts: 3,749	oil pressure and water gauges have their own senders that need to be installed. unless they are manual gauges which are totally differant __________________ Member #1 MM is going down the shitter fast!

February 20th, 2008, 08:36 PM	#26
MustangMatt96GT I Post Entirely Way Too Much 1996 Mustang GT 14.631@93.51 @ 5800 FT Join Date: Dec 2006 Location: Lakewood, CO Posts: 6,997	__________________ We expect shit to break, look foward to realizing exactly when it is happening, and than obsess about dropping plenty of cash to rebuild stronger, so we can try to run it hard as hell and break again. We are sick individuals.

February 20th, 2008, 06:49 PM	#24
black97GT Newbie 1997 Mustang GT ??? Join Date: Nov 2007 Location: Pauls Valley, OK Posts: 9	Great write up, does wiring of oil pressure and water temp gauges work the same way, or do I need to install the senders the gauges came with?

February 21st, 2008, 09:04 PM	#27
98SilverStang Enthusiast 1998 Mustang GT 285hp/309tq Join Date: Jul 2007 Location: Orlando, Florida Posts: 801	matt where did you get your tack from.. im looking for one but dont wanna pay like $200 for it. if you know of anyone who has one let me know __________________ 98 Mustang GT R.I.P

February 28th, 2008, 10:28 AM	#28
jlaw98gt Hardcore Enthusiast 1998 mustang gt 12.6@110 Join Date: Dec 2007 Location: northern new jersey Posts: 1,775	there all over ebay for under 50 bucks......matt where did you get that bracket..i looked on upr and i couldnt find it... __________________ ECCAFA NJS 98 gt with a few bolt ons

May 1st, 2008, 09:16 PM	#29
BlueStangGT Newbie Join Date: Feb 2007 Posts: 5	Bringing this one back up... I just did this install on my 98 and the tach reads roughly double the actual RPM. I got in contact with Autometer, they told me to connect the green wire to pin 48 of the ECM. I thought this was the same signal as pin 8 of the white cluster connector but did it anyway and got the same results. Tach model is 3911: Auto Meter Any ideas? __________________ 1998 Bright Atlantic Blue GT Coupe - 5 Spd., Headswap, 4.30's, blah, blah, blah...

May 4th, 2008, 04:16 PM	#30
joshh Newbie Join Date: Jan 2008 Posts: 4	hey blue it sounds like ur tach is set up for a 4cyl motor look to see if the loop wires on the back are cut?

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