Question about 1993 Harley Davidson FXR Super Glide

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Tacho stopped i have a mini tacho installed.....it worked fine with the wire connected to pin 3 . i have now put a fuelpak between the ecm large connections and the pink wire in the pin 3 is still in the same connector but has now obviously been moved to its new position under the seat with the splitting of the large connector .....the tacho lights but has stopped working now that the fuelpak is fitted between the split ecm connector..Hope you all understand this description

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I believe the fuelpack uses the tach signal in its operation. For some reason yours is not passing this signal thru to the tachometer. I'd get in touch with the manufacturer. I'm not sure if there is some setting that can turn off/on the signal pass thru, or that your fuelpak is faulty.

Posted on Nov 20, 2008

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My Sonoma 4.3 v6 is having some issues the rpm gauge is jumping at any giving time besides idling would you know why and I couldn't run dynastics


tachos get their signal from the coil or the ignition control module or ECM
check for ;loose / broken wires in the harness or at connections
There will be no fault codes for tachs unless it affects an adjacent sensor
could be a faulty tacho unit (tacho--tachometer--rev gauge --rpm indicator )

Jan 06, 2016 | Cars & Trucks

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Installing Tacho on 2004 H-D Sportster 883cc Custom


If you have the above model Harley, you'll know it doesn't have a Tacho as standard, and that the factory-fitted risers prohibit installation on the handlebar centre. After selecting a suitable after-market indicator - there are plenty on J&P Cycle's website - you'll need to make or buy a simple, triangular bracket (polished stainless steel looks good), with a hole at each corner, picking up the two lower riser trim plate bolts. The third hole is for attaching the Tacho cannister and you'll probably need to drill a fourth hole to allow need cable routing - which will obviously require a rubber grommet. Or you can be clever and drill out the centre of your attachment bolt to achieve the same effect - don't forget to chamfer/smooth out the edges.
What is absolutely essential for the electrical connection of a tacho is a Crane Cams Tach Adaptor - p/n: 8-2050 - also available from J&P. On the 2004 XL883C, you'll need to follow the "Ground-Sensing" instructions, which are included with the adaptor. Remove seat & tank from the bike, run the Tacho wiring near the coil, disconnect coil plug at coil then cut that plug off (three wires), ensuring you have at least 3" of cable "Tail" going into the coil plug to attach additional wiring. Using a good-quality ratchet crimping tool and Red/Blue connectors, follow the connection table below:
a) Join Tacho Red wire (12v input to Tach), together with Tacho Blue wire (lighting), then add both to Blue wire from Tach Adaptor module. Join these (use a Blue sleeve crimp), to White/Black wire (12v supply from ignition switch), then rejoin White/Black wires.
b) Add long, Black wire from Tach module to Blue/Orange wire (one of the two 'Dual-Coil' switching lines from Ignition module to coil primary winding), then rejoin Blue/Orange wires as in a) above.
c) Add White wire from Tach module to Yellow/Blue wire (the other coil switching line), then rejoin Yellow/Blue as above.
d) Connect the Short, Black wire from tach module to Green wire from Tachometer (tape & tie back the short Grey wire to module).
e) Connect Black wire from Tacho to a good earth. I installed a large ring terminal with three "spare" earth wires under the head of a forward upper engine mounting bracket, but most of the Black wires on your Harley should be earth/ground wires - check first!
Now all you should have to do is wrap all your cable junctions with spiral wrapping or insulating tape, reconnect the coil plug, resecure any wiring looms/harnesses that you may have moved, refit tank & seat, then off you go - with shiny new tachometer telling you how fast your V-twin's turning.
Enjoy.

on Dec 02, 2009 | 2004 Harley Davidson XL 883 Sportster

1 Answer

1989 regal tach stopped working


check for a faulty wire/s to the tacho of a faulty tacho unit
the tacho gets its reading by the ignition impulses so any engine running problems may have been a result of the faulty tacho or wires.

Jun 11, 2015 | Buick Regal Cars & Trucks

2 Answers

How do i fix the tachometer?


you have an in cluster factory engine tachometer (RPM)?
the tacho is meter in the cluster and does not use speedo parts or its cable.
its just a meter that needs power, ground and spark tacho signals
if all 3 are good, the meter is bad. period.
the tacho signal goes to the ignition coil minus lug, and will good, as engine runs. so... wires bad, to tacho or tacho bad.
ever price a new one? or even used? $100 used?
you willing to pay that much for just a factory tacho?

there is NO speedo cable. this old 93 is electronic, (rare on most 93 cars made, toy is advanced)
here is the proof, amazing how books dont lie....
there is a speed sensor.
the tacho and speedo use the same power and ground
leaving just one wire,r-g red-green RPM sig. pin 5 of cluster
an is SPARK primary sig. so if only tacho is dead.
then the tacho is bad, or that pin 5 wire is dead.
got you to just 2 possibles.


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Jan 26, 2015 | 1993 Toyota Corolla

1 Answer

Tachometer doesnt work 1990 jeep wrangler


ok what engine?
2.5L , 4.0L ? 4.2L
the tacho works by spark, signals and this varies by engine type.
1990 has the very odd, French REnix ECU (bendix-renix)
with no scan tool suport ,until 1993.
so scanning it for tacho signal good, is impossible. (DIY)
i sold min long ago. at 250k miles. now have 5 th jeep, 2008, a retired tech.
sold it with those rare books too. all 3 sets.
back then the engine has a small blue book, separate from main FSM.
ebay has them if patient, id recommend owning the FSM on any car
you do the work on. why work blind?>

alldata.com may have these facts.

too bad you didnt post engine. really, so ill will wild guess its a
4.2L
and answer for that.
the ignition model sense the spark signal to the Tacho
the tach is 3 pin meter. power, ground and signal.
if the signal is good and 12vdc across, power and ground pins
the tacho is bad.
if power and ground are bad fix that first.
if the signal is dead, the wire is cut or grounding out or the ignition wire
green is dead.and bad module,
on the 4.2L the green wire. goes dead kills the coil dead..

since it runs ok
that leaves way.
bad power to tacho, bad tacho.
easy peasy. this car.
other engine can work differently, (not stated)

Jun 01, 2014 | Jeep Wrangler Cars & Trucks

3 Answers

Dashboard instrument cluster faulty - fuel gage, odometer, tacho and trip counter not working on my nisan n13. Fuel gage shows pessimistic eatimat of fuel in tank. Odometer stopped one year ago when the...


N13's are terrible for this problem, the odometer stops because of a faulty little nylon cog that has to be replaced, the tacho and gauges in n13 dashed die as well but as far as I know that's because of faulty electronics, if it was just the odometer problem you couldv'e bought the cog off ebay (and with a little mechanical knowledge) you could've taken the dash apart and re installed it yourself but because the other electronics are dying I advise you take it to a dash repairer or you can try getting out a soldeing iron and try to replace all the faulty connections yourself.

Feb 20, 2010 | 1990 Nissan Pulsar

1 Answer

Im trying to install a tacho into my 1993 holden rodeo and i dont know where to put the revs wire as the isuzu engine 2.6 doesnt have a coil where do i connect the wire Cheers Dano


Hi Dano,

For installing the tacho on a vr there should be a single wire not pluged into anything, on your wire loom under the bonet on the LHS, this is the wire you need..

Please let us know if that was helpful enough.

Thanks

Shiv.

Aug 27, 2009 | 1993 Isuzu Rodeo

1 Answer

I need instructions on how to install a tacho in a 2002 cg lancer


We had tacho installation problem with out 98 lancer with no tacho on the panel. we got a aftermarket one but when we had to wiring it up it needed a tacho signle from the ignition coil. The ignition coil is built into the distributor which made it hard. The 2002 is the same distributor setup as the 98 so you can get step by step instructions with diagrams and pictures from my page, you will see an link that says Mitsubishi Tacho installation. website is www.sureyya.biz let me know if you find it useful.

Goodluck

Aug 22, 2009 | 2002 Mitsubishi Lancer

1 Answer

Tacho N/W changed ignition from MSD to ign.


its usally the green wire might go to the coil not sure on that model

Jun 05, 2009 | 2008 Subaru Impreza

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