Tachometer problem on 5 speed ka24e

[johnhartman]

Hello, I have a 5 speed ka24e engine, the speedometer has been repaired but the tachometer still does not work. I have checked the wiring diagram and FSM but have not found the problem, where does the tachometer get the signal from?

Any comments from you guys. Thanks.

[slider2828]

There is a speed sensor on the tail of your tranny. Its a round things with a wire off of it.

[Izento]

Also, dunno if you mean repair by replacing the entire cluster, but the KA24DE and KA24E clusters are different and your tach wont work if you use a DE one. Just a heads up.

[D35TR0Y3R]

the signal wire comes from the small plug that connects to the engine harness if i remember correctly - by the ECU On the passanger side kick panel -- for nissan s14 models

if you have a 1997 i can get you the correct wire - if you have another car then you need the FSM

[1988montecarloss]

Originally Posted by D35TR0Y3R

the signal wire comes from the small plug that connects to the engine harness if i remember correctly - by the ECU On the passanger side kick panel -- for nissan s14 models

if you have a 1997 i can get you the correct wire - if you have another car then you need the FSM

s14 isnt gonna have a ka24E

[D35TR0Y3R]

Originally Posted by 1988montecarloss

s14 isnt gonna have a ka24E

very true, didnt see that

[thomasfrank]

Originally Posted by johnhartman

Hello, I have a 5 speed ka24e engine, the speedometer has been repaired but the tachometer still does not work. I have checked the wiring Incredibox Colorbox Mustard diagram and FSM but have not found the problem, where does the tachometer get the signal from?

Any comments from you guys. Thanks.

The tachometer in a KA24E engine receives its signal from the negative terminal of the ignition coil or the distributor. To troubleshoot, you should check the wiring for damage, test for voltage at the tachometer signal wire, and ensure the ignition coil is functioning correctly.

[Mike6324]

Originally Posted by johnhartman

Hello, I have a 5 speed ka24e engine, the speedometer has been repaired but the tachometer still does not work. I have checked the wiring diagram and FSM moto x3m but have not found the problem, where does the tachometer get the signal from?

Any comments from you guys. Thanks.

The tachometer gets its signal from the ignition system, typically from the ignition coil or the crankshaft position sensor. Check the wiring connections and consider testing the sensor as well.

[AKADriver]

Gotta love these 1-poster AI responses to old ass threads that are vague or wrong, just quoting generic old car advice. Keep it up crapping all over the internet with your bots, guys.

The tach signal is generated by the ECU. Different pins and voltages on the E vs DE ECUs but in all 240SXs the ECU takes the optical cam position sensor signal, converts that to a tach signal for the dash and also uses that to time the ignition. The tach does not get a signal from the ignition pulses coming out of the distributor/coil itself.