Jump to content
SAU Community

Recommended Posts

I need to wire in my PLX Devices SM-EGT and SM-AFR into my Link G4.

I THINK you need to wire them into the ECU wiring loom and set the link to recognise them but i'm not sure and a bit of a twat when it comes to this stuff.

Could someone have a look at theses manuals for me and let me know which wires i need to cut and wire the sensor into please?

SM-AFR (Wideband) - http://www.plxdevices.com/support/manuals/SM-AFRGen2UsersGuide.pdf

SM-EGT (Exhaust Temp) - http://www.plxdevices.com/support/manuals/SM-EGTUsersGuide.pdf

ECU Wiring Diagram - http://img.docstoccdn.com/thumb/orig/101652534.png

From that diagram there is obviously two pinouts for the two lamdas but i only need one i think, but which one???

I cant see anywhere that the EGT would wire into though?

Really appreciate any help

Link to comment
https://www.sau.com.au/forums/topic/436705-link-g4-ect-and-wideband-wiring/
Share on other sites

Do you have the expansion harness for the G4? You can use this to wire in additional sensors.

But if you are only runnning the 1 wideband and dont need the two standard narrowband sensors then you could use one of the signal wires as the input for the wideband and the other for the input for the EGT sensor.

I've wired my wideband analog out to the stock 02 sensor (middle wire in the plug from memory) and it works fine.

Best thing to do is get the Link software and look at the pin fuctions and pinout pages in the help screen. This tells you what everything does and will give you an idea on what you need to do. I would buy the expansion harness, that way you can use one of the AN Temp wires on the expansion harness for your EGT sensor and then cut the Front 02 sensor plug off and wire the wideband in there.

Then you set AN Volt 'x' to be a wideband (can configure this in a Cal Table, voltage to corrosponding AFR) and AN Temp 'y' to an NTC temp sensor or whatever signal it is outputting

  • Like 1

Do you have the expansion harness for the G4? You can use this to wire in additional sensors.

But if you are only runnning the 1 wideband and dont need the two standard narrowband sensors then you could use one of the signal wires as the input for the wideband and the other for the input for the EGT sensor.

I've wired my wideband analog out to the stock 02 sensor (middle wire in the plug from memory) and it works fine.

No i don't have the expansion harness.

So I can wire in the wideband sensor to tthe 29 on the ecu and egt to 55?

Or do you mean the actual wire from the plug?

You can do either.... But it looks like the rear 02 sensor is not an adjustable setting in the Link software. So You can wire it up to one of the AFM signal wires (assume you would be running MAP with a link) and change that to a GP Temp setting and put your settings in the Cal table.

So basically without an EXP harness, use one of your AFM wires for one, and your front 02 sensor wiring for the other.

Should work fine if its setup properly

You can do either.... But it looks like the rear 02 sensor is not an adjustable setting in the Link software. So You can wire it up to one of the AFM signal wires (assume you would be running MAP with a link) and change that to a GP Temp setting and put your settings in the Cal table.

So basically without an EXP harness, use one of your AFM wires for one, and your front 02 sensor wiring for the other.

Should work fine if its setup properly

Yes i will be using the map sensor.

So how do i set the Link to recognise them through those wires?

Thanks so much mate, really appreciate it!

Merry Christmas!

Edited by d-ranged

Download the software and look in the help files. In G4 plug-in ECU installation manual go to pin functions and it tells you what all the channels do. Look at the ones that correspond to the items you are replacing. Best thing to do is just download the software and look in the help files for all your answers. I wired my car up doing this. It's all there, just a matter of finding it. The search in the help files is actually not to bad

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Not sure the US can import anything other than the C34 Stagea's, but if you can and you need to to tow, DO NOT under any circumstances get an M35 Stagea. If it is just as a family car and your country/state allows it, absolutely and definitely get an M35 (3.5L if possible as it is effectively a 350Z) over a C34.
    • Punch your VIN (nm35-xxxxxx) into Amayama.com You can see everything there quite easily.
    • Thanks for that, I'll check it all out. I can always do the brakes last anyway if its a problem.  The 16's are super cool, if they do fit I'll cruise around with them for a bit.  
    • Well, that's kinda the point. The calipers might interfere with the inside of the barrels 16" rims are only about 14" inside the barrels, which is ~350mm, and 334mm rotors only leave about 8mm outboard for the caliper before you get to 350, And.... that;s not gunna be enough. If the rims have a larger ID than that, you might sneak it in. I'd be putting a measuring stick inside the wheel and eyeballing the extra required for the caliper outboard of the rotor before committing to bolting it all on.
    • OK, so again it has been a bit of a break but it was around researching what had been done since I didn't have access to Neil's records and not everything is obvious without pulling stuff apart. Happily the guy who assembled the engine had kept reasonable records, so we now know the final spec is: Bottom end: Standard block and crank Ross 86.5mm forgies, 9:1 compression Spool forged rods Standard main bolts Oil pump Spool billet gears in standard housing Aeroflow extended and baffled sump Head Freshly rebuilt standard head with new 80lb valve springs Mild porting/port match Head oil feed restrictor VCT disabled Tighe 805C reground cams (255 duration, 8.93 lift)  Adjustable cam gears on inlet/exhaust Standard head bolts, gasket not confirmed but assumed MLS External 555cc Nismo injectors Z32 AFM Bosch 023 Intank fuel pump Garret 2871 (factory housings and manifold) Hypertune FFP plenum with standard throttle   Time to book in a trip to Unigroup
×
×
  • Create New...