Computer Problems with Manual Trans Swap

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I have been pondering this... can't it be simpler to find out the signal required for the computer to read a "normal" status from the auto trans connections? I think that would be a cheaper and more compatible (since you keep your original ECU) way to do this.
 
FloridaFJ80 said:
I am going down this route as we speak. I put in a H151f and I am getting CEL all codes related to the auto. I have sourced a 1FZJ ECU w/o and Auto and will plug it in to see if that is all that I need to do to get rid of the CEL. I drove the vehicle with the codes and didnt have any issues with driveability.
Click to expand...

Awesome :D Make sure to keep us posted! Put up a pic and a P/N of the ECU if you don't mind.

To confirm, for drivability, all you did was you disabled the NSS (DS of the transmission, rear most connector) by looping the contact and then wired the H151F reverse switch into the PRND connector?

gnarlynick2072 said:
I have been pondering this... can't it be simpler to find out the signal required for the computer to read a "normal" status from the auto trans connections? I think that would be a cheaper and more compatible (since you keep your original ECU) way to do this.
Click to expand...

This is my goal. We're going to have to see specifically which codes are triggered after my proposed wiring is implemented to see how to make it work CEL free.
 
GLTHFJ60 said:
Awesome :D Make sure to keep us posted! Put up a pic and a P/N of the ECU if you don't mind.

To confirm, for drivability, all you did was you disabled the NSS (DS of the transmission, rear most connector) by looping the contact and then wired the H151F reverse switch into the PRND connector?
Click to expand...

That is correct all i did was loop the NSS and wired in the reverse indicator harness from the manual and the R on the instrument panel turns on when I put
It in reverse.
 
I didn't read pages 2-5, so sue me :-)
I've got a sapre M/T ECU off a 1FZFE H151. We didn't get OBD2 at all in Aus. Yours if you need it, just reply in the thread and I'll see it.
 
Awesome, very timely! I have a '96 FZJ80 that will be getting a 151, collecting a few of the last parts for the swap, slowly. Good luck guys :beer:
 
ALX4X4 said:
I didn't read pages 2-5, so sue me :)
I've got a sapre M/T ECU off a 1FZFE H151. We didn't get OBD2 at all in Aus. Yours if you need it, just reply in the thread and I'll see it.
Click to expand...

I'd take you up on it, but that ECU is not OBD2, right? A 97 needs OBD2 to pass inspection in the US.
 
I did some digging and came up with these parts

89661-60281 ECU
82125-60043 engine harness
82221-60020 wire, oil pressure
82251-60040 wire, speed sensor

this is for a 1FZ with 5sp and looks to be OBDII or at least has all the same sensors as our trucks which includes the O2s


This info is for a 1997 Euro spec 80, I'd try and view the factory manual and EWD to confirm.
 
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I'd be willing to bet, even if you swapped out an OBDII ECU from a Euro spec, you'll still be chasing codes from some Euro spec sensors (or something!) that the NA model doesn't have... my $0.02.
 
GLTHFJ60 said:
I have read your marilu thread many times, but the specifics on how you wired your relays are vague. Do you know what type of relay you used (4 or 5 pin) and where each pin connected?
Click to expand...

I use the reverse and D wires from the connector ..

use a 5 pin bosh relay and with switch it's on ( cylinder key ) relay provide 12V to the pin where the D wire it's connected when reverse it's set on tranny, Reverse sender provide ground to the relay and relay send 12V to the R wire ( though pin ) so you have reverse lights along with R on your Dash ..

Drop me mail to tapage at 4 x 4 panama.com if you wanna pic of my not so beauty relay setup ..
 
Tapage said:
I use the reverse and D wires from the connector ..

use a 5 pin bosh relay and with switch it's on ( cylinder key ) relay provide 12V to the pin where the D wire it's connected when reverse it's set on tranny, Reverse sender provide ground to the relay and relay send 12V to the R wire ( though pin ) so you have reverse lights along with R on your Dash ..

Drop me mail to tapage at 4 x 4 panama.com if you wanna pic of my not so beauty relay setup ..
Click to expand...

That's what I needed. Thanks brother :cheers:
 
gnarlynick2072 said:
I'd be willing to bet, even if you swapped out an OBDII ECU from a Euro spec, you'll still be chasing codes from some Euro spec sensors (or something!) that the NA model doesn't have... my $0.02.
Click to expand...

I'll take that bet. The US is typically a sensor rich market. As an example, after looking further the Euro market doesn't seem to get a rear O2 sensor but still has the MAF.
 
gnarlynick2072 said:
Or check out my thread on how I did my lights no relay needed. Lol

https://forum.ih8mud.com/threads/80...ap-includes-rhd-hdj81-lhd-fzj80.853565/page-5
Click to expand...

Yes, that's the easier route, but it doesn't give any signal to the harness for a gear position when the manual is in anything other than reverse. I'm going to wire it up that the cluster reads "N" when in anything other than reverse, with the thinking that it will reduce the amount of engine codes thrown.
 
FloridaFJ80 said:
That is correct all i did was loop the NSS and wired in the reverse indicator harness from the manual and the R on the instrument panel turns on when I put
It in reverse.
Click to expand...

Can you confirm which connector is the NSS? I suspected that the NSS was the one labeled in this picture, but this connector is jumped and the truck will still not start. I'm having trouble identifying which connector is the "Park/Neutral Position SW" in the EWD.

EDIT: THIS IS NOT THE NSS!! The NSS wires are part of the large PRND connector on the (US) passenger side of the factory automatic A343. The B-R (black with red) and B-W (black with white) wires are jumped to bypass the NSS switch.

Thank you!

Edited%252520Tranny%252520pic%2525202.png
 
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FloridaFJ80 said:
The NSS is the harness you have indicated as the PRND connector.. You need to jump the 2 middle big wires.

Here is a picture. Hope this helps..

https://forum.ih8mud.com/threads/neutral-safety-switch-and-starter-problems.402676/
Click to expand...

Just walked in from testing exactly this. You must have been typing as I was testing. P55 of the EWD articulates the B-R and B-W wires as connections for the NSS switch, which I had somehow missed shared a connector with the PRND indicator. Thanks for confirming especially with the picture! We have ignition.

Now, the question is, what is the connector above I have mis-labeled as the NSS switch, that connects to the factory automatic on the (US) driver's side?
 
20150725_123353.jpg
GLTHFJ60 said:
That's what I needed. Thanks brother :cheers:
Click to expand...

got your pic Johnny .. those are the 2 wires I'm using from the plug, one for D and one for R
 
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