Rd28 to td42 taco wiring

[Wildgq]

Hi I have just converted my gu rd28 to td42 and have got everything working fine except the taco. My sensor off the motor has 3 wires red white and black and the Rd loom has black blue and grey. Was wondering which one go to what cheers

[mudnut]

Hello, and welcome to the forum. There are a few threads dealing with this problem, such as this one: http://www.nissanpatrol.com.au/forum...ght=RD28+Tacho


http://www.nissanpatrol.com.au/forum...t=tacho+wiring

Try the search function.

[4bye4]

G'day mate and welcome to the forum.

[Wildgq]

I tried everyway possible is there a way you can test to make sure the cam sensor is still working
Cheers

[Yendor]

Where are you trying to connect the TD42 sensor to? The RD crank sensor wiring or the cam sensor wiring that connected to the injector pump?

From memory the RD wiring should be a Black wire and a White wire, not a Blue wire that sounds more like crank sensor.

Do you still have the RD ECU fitted?

[Zoc]

Where are you trying to connect the TD42 sensor to? The RD crank sensor wiring or the cam sensor wiring that connected to the injector pump?

From memory the RD wiring should be a Black wire and a White wire, not a Blue wire that sounds more like crank sensor.

Do you still have the RD ECU fitted?

I've got the exact same problem but from a tb45 to td42 swap, where is the best place to go to get something like this fixed?

Sent from my Nexus 6P using Tapatalk

[Yendor]

I've got the exact same problem but from a tb45 to td42 swap, where is the best place to go to get something like this fixed?

Sent from my Nexus 6P using Tapatalk

John has done this conversion

http://www.nissanpatrol.com.au/forum...uto-conversion

[sooty_10]

I have done rd28 to td42 conversion. I tried wiring the td42 tacho sensor through the ecu... didn't work. Tried wiring direct to rd28 tacho, bypassing ecu..... no joy.

I had a donor car and swapped the complete td42 cluster in, wired the sensor direct to back of tacho, as it is in the td42's.....and...
success.

Everything works spot on. I believe the TD tachos use a different signal modulation or something technical than the RD tacho so not compatible with the TD sensor. You could try swapping the RD sensor in if it fits, don't remember trying that?

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[jff45]

John has done this conversion

http://www.nissanpatrol.com.au/forum...uto-conversion

Yes, but I see that thread is not worth looking at with the missing images.

TB45 to TD42 worked for me with a Dakota Digital tacho signal converter. The TD42 signal connects to the Dakota (simple instructions) and the Dakota output connects to the yellow/black that was previously connected to pin #7 on the TB45E ECU. That yellow/black wire is connected to the tacho and, if you have an auto trans, also sends the signal to the TCU.

The TD42 must have the pickup on the front timing cover, not under the IP. The signal from the TD42 pickup should be ~1.0v AC at idle otherwise the Dakota won't work.