[Ghostisdead]

Does anyone have the wiring diagram or pin map for the jb4 n55 e92 harness b?

[orteeze]

Originally Posted by Ghostisdead

Does anyone have the wiring diagram or pin map for the jb4 n55 e92 harness b?

Yeah, why?

[Pladi]

I would like to see this too for tapping into signal wire.

[orteeze]

Originally Posted by Pladi

I would like to see this too for tapping into signal wire.

Yellow is the 5v signal on the JB4 TMAP.

[Pladi]

Originally Posted by orteeze

Yellow is the 5v signal on the JB4 TMAP.

thanks yes that does correspond to what aquamist mapping shows and TIS diagram.

Pin 4 is that yellow wire.

Do you know if the harness has 2 grounds ? Do you know what the signal ground is on that harness ?

[orteeze]

Originally Posted by Pladi

thanks yes that does correspond to what aquamist mapping shows and TIS diagram.

Pin 4 is that yellow wire.

Do you know if the harness has 2 grounds ? Do you know what the signal ground is on that harness ?

No, only one ground. Pin 3 should be signal; not sure if that's a signal ground.

[maymeejay]

I am needing the wiring schematic for the throttle housing wire harness (6 Pin). I purchased a new harness but the wire colors are different and the old harness is already removed. Needing to know what color wires go to each pin in the connector. I have the 3 Series Service Manual downloaded but it does not have the info. Please help!
2005 BMW 325i

[orteeze]

Originally Posted by maymeejay

I am needing the wiring schematic for the throttle housing wire harness. I purchased a new harness but the wire colors are different and the old harness is already removed. Needing to know what color wires go to each pin in the connector. Please help!
2005 BMW 325i

Can't help you there, sir.

[Pladi]

Originally Posted by orteeze

No, only one ground. Pin 3 should be signal; not sure if that's a signal ground.

According to TIS

https://www.newtis.info/tisv2/a/en/e...upply/CkLmMkPM

Pin 1 is the yellow wire and should be the charge signal output but pin 3 is the air temp signal.

i thought it was pin 4. Anyways i will be measuring this myself soon .No guessing after that. I am working on a custom methanol controller building it on the STM32 microcontroller. Ill be using MAF, MAP and RPM/Injector pulse. for a 3 input table 3D tunable. For most accurate load . For a fraction of the cost of controllers out there. ITs also alot more sophisticated not just progressive boost.

[orteeze]

Originally Posted by Pladi

According to TIS

https://www.newtis.info/tisv2/a/en/e...upply/CkLmMkPM

Pin 1 is the yellow wire and should be the charge signal output but pin 3 is the air temp signal.

i thought it was pin 4. Anyways i will be measuring this myself soon .No guessing after that. I am working on a custom methanol controller building it on the STM32 microcontroller. Ill be using MAF, MAP and RPM/Injector pulse. for a 3 input table 3D tunable. For most accurate load . For a fraction of the cost of controllers out there. ITs also alot more sophisticated not just progressive boost.

If you are simply looking for the 0-5v MAP, it's the only outside yellow wire in the harness. Depending on if it's 11' or late 11' and newer, the pin orientation is swapped.

[Ghostisdead]

i was looking because i bought a harness for a f series pwg jb4 harness and wanted to know if it worked on my 2012 n55. I found out that it is 100% the same other than the brown and green wire are just really long so i just cut it and now im rocking that jb4 btw i already had a jb4 from my old car and wanted to carry it on after the accident