VH to S13 wiring????

[Steve Lloyd]

I did search, found a VH to Z32 guide that was awesome. I have both FSM's but would like a little help on this. Can anyone point me in the direction of a guide for this, or at least tell me what plugs off the Q45 are needed. I have a complete Q45 sitting in my driveway, I just need to know what plugs to grab from it and splice into my S13 harness.

Thanks.........

[gs14racer]

Exactly what is needed for the z32 in the guide is the same for an s13/14. All you need is the fsm for the s13 and you can find where they go to.

[SuperHatch]

I did search, found a VH to Z32 guide that was awesome. I have both FSM's but would like a little help on this. Can anyone point me in the direction of a guide for this, or at least tell me what plugs off the Q45 are needed. I have a complete Q45 sitting in my driveway, I just need to know what plugs to grab from it and splice into my S13 harness.

Thanks.........

This should help...

http://www.godspeed-racing.com...3.xls

I put this document together for a VH installation I'm working on with a friends S13. I have NOT verified the information above yet, it is a living document.

As you will find out, my wiring "plan" relies on using the S13 A/C Relay as the Coil relay for the VH harness. The S Chassis cars have ECCS relays, but not Coil relays because of the whole distributor deal. Some would argue that the ECCS relay is sufficient enough to supply the ECCS power and the Coil power, I wanted to keep it set up as the OEM did.

There are two sheets in the document, one sheet is labeled "VH Pinout" and the other is labeled "S13 Pinout". When looking at the "VH Pinout" sheet you are looking at the F51, F52, and F53 plugs on the VH harness, the colors are correct for a 91 Model Year VH, they will vary with other years. This is for a Non-TC, Non-Active harness.

When looking at the "S13 Pinout" sheet (This is the sheet you will most likely work from) you are looking at three connectors on the S13 EFI Harness. The 16-pin F1 connector is in the kick panel next to the ECU, you will need to cut this connector off of the S13 EFI harness and it will be transfered to the VH harness. The other two connectors (F8 and F9) are in the engine bay and connect under the passenger side fuse box. You'll want these two connectors and a good length of wire to get the from the fuse box into the car near the ECU connector.

The only other trick is that some wires inside that fuse/relay box need to be switched around to allow the AC relay to be used as the coil relay. There is a note in the file outlining that. Basically the AC relay needs to get power from an ON/ST source rather than a ON source so the coils actually get power while cranking.

Feel free to email me any questions you have. I don't get on this forum much anymore but I'd be glad to help you out. Good luck!

[Steve Lloyd]

Thank you very much, this will be a good start. Unfortunately, the car I have is a 1994 and has the traction control system so this might make it more difficult.

Thanks again......

[SuperHatch]

Thank you very much, this will be a good start. Unfortunately, the car I have is a 1994 and has the traction control system so this might make it more difficult.

Thanks again......

The VH harness is from a 94 or the S13 is a 94? If the VH is from a 94 I have the correct manual for those wire colors as well. Let me know and I'll make a second document for the phase 2 engines...

[piranhamatt]

If you happen to have spare time and want to make one for an S14, I know I wouldn't be upset...

[Steve Lloyd]

Sorry for the confusion.

Q45: 1994 Traction Control Automatic Tuned suspension package

S13 1989 Automatic non-abs

I hope this is enough information, and I really do appreciate the help. I just don't have the cash right now to pay Mazworx to do the wiring. I've done SR wiring in the past, so I know a little, but all the extra systems on the Q45 are just really intimidating.........

[SuperHatch]

I'm assuming you're not keeping the traction control...

I can understand the intimidation factor, but it really isn't much more complicated than any other Nissan hybrid.

I need to dig out my 94 wiring diagrams, once I get the info together I'll update the document and post the new file. Keep in mind that I do not have the wiring information for a 89 model year S13, so I don't know how useful any of this will be for you.

[Steve Lloyd]

not keeping traction control, just mentioning all the options on the car. I already got a non-TCS throttle body for the VH.

As for the S13 wiring, I have that, I just really need to know the Q45 side of it, and plug locations on the Q45.

thanks again for the help, and I'm in no rush as i appreciate your time.

[dsc4130]

what if you used an sr wiring harness. i only ask because it used an ingnitor and still has the eccs

[Carl H]

using an sr harness = pointless.wrong body plugs for the usdm chassis.

[dsc4130]

well im only asking because i have one that is just laying around, that im prolly going to throw away that has already been converted

[SuperHatch]

Coil =/ Ignitor

Thanks though, but what Carl said is pretty much true. If you have an SR harness that was already converted you can probably use the connectors, but I don't think any of the wire colors will match up. Sorry, it's been a little over 10 years since I've done an SR conversion, not remembering exactly.

[Steve Lloyd]

I'm assuming you're not keeping the traction control...

I can understand the intimidation factor, but it really isn't much more complicated than any other Nissan hybrid.

I need to dig out my 94 wiring diagrams, once I get the info together I'll update the document and post the new file. Keep in mind that I do not have the wiring information for a 89 model year S13, so I don't know how useful any of this will be for you.

bumping this due to the fact I'm ready to start wiring this thing up and don't know what wires are what on my VH45DE harness.

Any help would be great. I also don't know what plugs are what on the VH harness. I see all these plug numbers, but no idea what plug is what. I have 4 plugs coming directly off my ECU (not including the ECU plug) but I don't know which one is which.............

[SuperHatch]

bumping this due to the fact I'm ready to start wiring this thing up and don't know what wires are what on my VH45DE harness.

Any help would be great. I also don't know what plugs are what on the VH harness. I see all these plug numbers, but no idea what plug is what. I have 4 plugs coming directly off my ECU (not including the ECU plug) but I don't know which one is which.............

If you can wait until Monday, I'll have it up. I just finished a 94 VH to 92 Z harness, and I just need to cross reference my notes.

[Steve Lloyd]

that would be great. do you by chance have pictures of the VH plugs so I can put an image with a plug number?? It would also help others that might be doing this in the future.

Steve

[WYT R1CE]

Im interested in that wiring as well. Im running a 95 VH45 with Trac control removed

[WYT R1CE]

Im interested in that wiring as well. Im running a 95 VH45 with Trac control removed

bump

[WYT R1CE]

BTW that link posted above is dead. Does anyone else have a diagram or read out for the wiring? I was trying to read the FSM but started going crosseyed haha. Any help would be much appreciated!

[SuperHatch]

Never got around to getting the second document finished. I'll rehost soon...

[WYT R1CE]

Awesome! Thank you!

[WYT R1CE]

Ohh, for anyone who has already done the wiring by themselves would you say it was almost identical as wiring in the SR?

[SuperHatch]

It's been about 12 years since I've wired an SR into an S13, so I don't really recall all the details. The wiring isn't terribly difficult, it's just a matter of how tidy you want it to be. When I build a harness I like it to be indistinguishable from a stock piece.

[WYT R1CE]

Can you email me that diagram you posted a while ago?
Modified by WYT R1CE at 1:17 PM 2/25/2010