E90 328 Throttle Pedal Wiring Diagram ?

CobraMarty · 07-09-2018, 09:45 PM

Does anyone have the wiring diagram for the foot throttle pedal?

It is 6 pin/wires. And when looking at the car side plug, numbered as-
1 2 3
4 5 6

pin 1- brown with yellow stripe
pin 2- brown
pin 3- yellow with green stripe
pin 4- white
pin 5- yellow
pin 6- white

So something should be- ground, 5v reference, signal (0-5v), IDK what else.

Any help? Thanks

My idea is to tap and monitor the 0-5v signal wire and I will then map out the throttle position voltage. I can use this voltage to turn on a switch/relay.

For example if half throttle is 2.5v, I can monitor the signal wire and when it goes above 2.5v, it turns on a relay, which would turn off when the signal voltage drops below 2.5v.
Or turn on Nitrous when pedal is beyond 80% position. Open an exhaust dump valve when above 50% throttle position. Open electric BOV when throttle position is below 15% and above 5%. The possibilities are endless.

I want to be able to turn on and off some things depending on throttle pedal position.

BudVlad · 07-10-2018, 05:49 AM

......

CobraMarty · 07-10-2018, 08:52 AM

Thanks.

Looks like there is basically 2 sensors. BMW redundancy.
Each has 3 wires- ground, 5v+, signal.

Maybe one is 0-5v and the other is 5v-0 sweep. I'll do some testing.

hassmaschine · 07-10-2018, 11:18 AM

one is 0-5v and the other is something like 2.8-0v (opposite directions).

Honestly wouldn't it be easier to just pull the TPS position from the CAN bus?

CobraMarty · 07-10-2018, 12:14 PM

Quote:

Originally Posted by hassmaschine

Honestly wouldn't it be easier to just pull the TPS position from the CAN bus?

But then I would need a CAN bus interpreter of some sort.

hassmaschine · 07-10-2018, 02:23 PM

IIRC those are pretty easy to come by - I don't know off the top of my head, but I know the exist as it's a really common thing to do - better than reinventing the wheel, plus you could access other data (RPM, vehicle speed, etc).

BTW, I believe all PWG modules are the same from the E46 to at least the E9x.

07-09-2018, 09:45 PM	#1
CobraMarty Major 622 Rep 1,402 Posts Drives: 2007 328xi e90 + e92 Join Date: Sep 2010 Location: BimmerMILVs.com iTrader: (7)	E90 328 Throttle Pedal Wiring Diagram ? Does anyone have the wiring diagram for the foot throttle pedal? It is 6 pin/wires. And when looking at the car side plug, numbered as- 1 2 3 4 5 6 pin 1- brown with yellow stripe pin 2- brown pin 3- yellow with green stripe pin 4- white pin 5- yellow pin 6- white So something should be- ground, 5v reference, signal (0-5v), IDK what else. Any help? Thanks My idea is to tap and monitor the 0-5v signal wire and I will then map out the throttle position voltage. I can use this voltage to turn on a switch/relay. For example if half throttle is 2.5v, I can monitor the signal wire and when it goes above 2.5v, it turns on a relay, which would turn off when the signal voltage drops below 2.5v. Or turn on Nitrous when pedal is beyond 80% position. Open an exhaust dump valve when above 50% throttle position. Open electric BOV when throttle position is below 15% and above 5%. The possibilities are endless. I want to be able to turn on and off some things depending on throttle pedal position.
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07-10-2018, 05:49 AM	#2
BudVlad Old Geezer 376 Rep 1,193 Posts Drives: 08 E92 N53B30 Join Date: Jul 2007 Location: Budweis iTrader: (0) Garage List 2008 E92 N53B30 [10.00]	...... Attached Images __________________
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07-10-2018, 08:52 AM	#3
CobraMarty Major 622 Rep 1,402 Posts Drives: 2007 328xi e90 + e92 Join Date: Sep 2010 Location: BimmerMILVs.com iTrader: (7)	Thanks. Looks like there is basically 2 sensors. BMW redundancy. Each has 3 wires- ground, 5v+, signal. Maybe one is 0-5v and the other is 5v-0 sweep. I'll do some testing.
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07-10-2018, 11:18 AM	#4
hassmaschine Major General 3987 Rep 7,212 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	one is 0-5v and the other is something like 2.8-0v (opposite directions). Honestly wouldn't it be easier to just pull the TPS position from the CAN bus?
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07-10-2018, 02:23 PM	#6
hassmaschine Major General 3987 Rep 7,212 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	IIRC those are pretty easy to come by - I don't know off the top of my head, but I know the exist as it's a really common thing to do - better than reinventing the wheel, plus you could access other data (RPM, vehicle speed, etc). BTW, I believe all PWG modules are the same from the E46 to at least the E9x.
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