Confusion about wiring in sensors etcc
Thread Starter
Joined: Jan 2006
Posts: 20,788
Likes: 8
From: location, location
Confusion about wiring in sensors etcc
So i have a Innovate MTX-L wideband, generic oil temp sensor and MAC boost solenoid.
I'm a little confused reading through previous threads, I'm looking at what pins to use.
1. I presume i wire them all through the little extra grey connector that goes in the last port on the ECU?
2. I can wire to the switched 12v under the dash but can they all go to this for power or some to specific points on the harness.
3. Where do a wire the positive and negative to for a wideband sensor (presume just 1 0-5v wire) pin/wire etc?
4. Where do a wire the oil temp sensor pin/wire etc?
5. I need a resistor for the above?
6. Where do a wire the positive and negative for the MAC boost solenoid pin/wire etc?
Thanks
I'm a little confused reading through previous threads, I'm looking at what pins to use.
1. I presume i wire them all through the little extra grey connector that goes in the last port on the ECU?
2. I can wire to the switched 12v under the dash but can they all go to this for power or some to specific points on the harness.
3. Where do a wire the positive and negative to for a wideband sensor (presume just 1 0-5v wire) pin/wire etc?
4. Where do a wire the oil temp sensor pin/wire etc?
5. I need a resistor for the above?
6. Where do a wire the positive and negative for the MAC boost solenoid pin/wire etc?
Thanks
Joined: Jan 2007
Posts: 373
Likes: 1
So i have a Innovate MTX-L wideband, generic oil temp sensor and MAC boost solenoid.
I'm a little confused reading through previous threads, I'm looking at what pins to use.
1. I presume i wire them all through the little extra grey connector that goes in the last port on the ECU?
Read the ems manual. It lists the available 5v inputs.
2. I can wire to the switched 12v under the dash but can they all go to this for power or some to specific points on the harness.
Some sensors use 12v some use 5v power supply. This 12v supply will work for 12v sensors, ybut you need another 5v supply for 5v sensors. Again read the ems manual, it lists the 5v outputs.
3. Where do a wire the positive and negative to for a wideband sensor (presume just 1 0-5v wire) pin/wire etc?
Read the manual of the wideband sensor. It prob needs 12v for heater and a 5v reference voltage for the sensor output. Use the 5v supply nearest the sensor input on the ecu.
4. Where do a wire the oil temp sensor pin/wire etc?
Search some more. This exat question has been asked and answered.
5. I need a resistor for the above?
The ems has pull up resistors built into some inputs. Again read the ems manual
6. Where do a wire the positive and negative for the MAC boost solenoid pin/wire etc?
The ems has an output for boost control. Don't remember the pin off the top of my head, but it is clearly stated in the manual
Thanks
I'm a little confused reading through previous threads, I'm looking at what pins to use.
1. I presume i wire them all through the little extra grey connector that goes in the last port on the ECU?
Read the ems manual. It lists the available 5v inputs.
2. I can wire to the switched 12v under the dash but can they all go to this for power or some to specific points on the harness.
Some sensors use 12v some use 5v power supply. This 12v supply will work for 12v sensors, ybut you need another 5v supply for 5v sensors. Again read the ems manual, it lists the 5v outputs.
3. Where do a wire the positive and negative to for a wideband sensor (presume just 1 0-5v wire) pin/wire etc?
Read the manual of the wideband sensor. It prob needs 12v for heater and a 5v reference voltage for the sensor output. Use the 5v supply nearest the sensor input on the ecu.
4. Where do a wire the oil temp sensor pin/wire etc?
Search some more. This exat question has been asked and answered.
5. I need a resistor for the above?
The ems has pull up resistors built into some inputs. Again read the ems manual
6. Where do a wire the positive and negative for the MAC boost solenoid pin/wire etc?
The ems has an output for boost control. Don't remember the pin off the top of my head, but it is clearly stated in the manual
Thanks
Joined: Mar 2005
Posts: 4,692
Likes: 6
From: Centreville, Va
(borrowed from user 'MisMyS
Boost Controller
D4......High Side Driver......Output......Available Switched +12v. 1.5a max
D16.....PW #2....................Intput......Available Boost Solenoid
**This is not polarity Specific
Pressure Sensor
Black......D9....Sensor Ground..........Input.......Availible Ground Reference
Red........D6....+5V Sensor..............Output......Available 5.0V Reference
Green.....D8.....ADR14.....................Input.. .....Available, 0-5v input (100K pu)
Boost Switch Input [High Boost Switch]
D11......Switch #2....Available Switched Input
To Chasis Ground
Nitrous Input
D12......Switch #3....Available Switched Input
To Chasis Ground
Schematic/questions
https://www.s2ki.com/s2000/topic/737...-ems-question/
https://www.s2ki.com/s2000/topic/961...s-2-explained/
Former Sponsor
Joined: Aug 2010
Posts: 944
Likes: 3
Wide band is a little tricky, you either have to depin the ecu connector pin 16 and re route the wideband output pin there, splice into that wire with the wideband pin, or run a wire from the wideband all the way back to the stock 02 sensor connector on the transmission and plug in there.
Trending Topics
Registered User
Joined: Aug 2013
Posts: 21
Likes: 0
Just want the quickest way to start tuning really.
Thanks
Community Organizer
Joined: Oct 2011
Posts: 1,391
Likes: 13
From: dfw
on the wide band hookup I got some gold plate spade terminals. put shrink tube over them and soldered them on so I can switch between the wide band and the stock o2 sensor as I have emissions and have to install the stock ecu once a year though I am running aem wide band but it runs to the same pin im running aem v1 good luck on your install aj 
Thread Starter
Joined: Jan 2006
Posts: 20,788
Likes: 8
From: location, location
Okay so I'm going to chop the c16 wire back say 2 inch and wire my output from my innovate mtx-l, it has a switched 12v (red) and ground (black) where should i wire those into?
at the moment i have worked out...
MAC Boost sensor:
(doesnt matter which way but)
D4 = power
D16 = boost wire
Oil temp sensor (use 100k pull from ADCR14):
ADCR14 spare 0-5v
d8=power (ADCR14)
d9= ground
Wideband:
C16 from output wire (0-5v) on innovate wideband controller
C16= yellow
xx = red (switch 12v)
xx = black (ground)
Thanks
at the moment i have worked out...
MAC Boost sensor:
(doesnt matter which way but)
D4 = power
D16 = boost wire
Oil temp sensor (use 100k pull from ADCR14):
ADCR14 spare 0-5v
d8=power (ADCR14)
d9= ground
Wideband:
C16 from output wire (0-5v) on innovate wideband controller
C16= yellow
xx = red (switch 12v)
xx = black (ground)
Thanks