plan:b
07-15-2010, 03:46 PM
We bought a Greddy InforMeter Touch for our Evo X project car. I didn't want a ton of guages all over the place and this unit looks like an aftermarket navigation unit when mounted on the dash. It offers full monitoring abilities such as boost, oil temp, oil pressure, A/F, and tons more all in one unit.
Very simple setup to monitor A/F
We purchased the AEM Inline Wideband unit and easily set it up to work with the InforMeter. Here's how:
-Get the supplied bung welded in for the o2 in the proper location given in the instructions
-Install o2 sensor
-Run the o2 side of the harness from the AEM unit through the grommet under the passenger seat. There is a black shield under the car hiding the grommet. Remove it and you will use that access hole. Plug in the sensor.
http://i494.photobucket.com/albums/rr309/planbms/HarnessUnderChassis.jpg
http://i494.photobucket.com/albums/rr309/planbms/UnderChassisHarness.jpg
-There is a carpet flap in front of the passenger seat where the AEM unit can hide in there. This allows for easy viewing of the status lights
-Take the wiring side of the harness and route it to the InforMeter. Ours is on the left side of the dash, so we ran it through the center console
-From here we connected the red wire from the AEM harness to the cig lighter power wire, and the black wire to the cig lighter ground to power the AEM unit.
-Run the remaining harness to your InforMeter, and connect the white wire from the AEM unit to the Pink wire off the InforMeter
-Brown wire is chassis ground
-Grey wire is not used for the InforMeter.
InforMeter Setup:
From the InfoTouch display:
-Press the screen
-select and press “SETTING”
-press “ANALOG V”
-press “ITEM”
-press “A/F”
Since AEM's Voltage Range of the sensor is .5V - 4.5V a little math is invloved to make it work with the InforMeter since the Greddy unit reads from 0-5V. It's easy:
There will be two buttons, “CONVERSION 0V” and “CONVERSION 5V”. What this is asking for is what AFR the O2 sensor reads at a particular voltage. The InfoTouch will then convert these voltages into meaningful AFR values displayed on screen.
AEM users will need to put in 7 for ”CONVERSION 0V” (meaning A/F should read 7:1 at 0V) since that is the closest value according to AEM's equation 2.375(V)+7.3125 = A/F value @ 0v
“CONVERSION 5V” will be 19.
Some wideband sensors have different voltage ranges, so just use the equation above to find out what number to use for the InforMeter.
TADA!
http://i494.photobucket.com/albums/rr309/planbms/INFOAF.jpg
WIRING REFERENCE
Red - 12V Switched Power Source / 5A Fused
Black - Ground
White - Connect to Pink from InforMeter
Brown - Ground
Grey - Not used for InforMeter
Very simple setup to monitor A/F
We purchased the AEM Inline Wideband unit and easily set it up to work with the InforMeter. Here's how:
-Get the supplied bung welded in for the o2 in the proper location given in the instructions
-Install o2 sensor
-Run the o2 side of the harness from the AEM unit through the grommet under the passenger seat. There is a black shield under the car hiding the grommet. Remove it and you will use that access hole. Plug in the sensor.
http://i494.photobucket.com/albums/rr309/planbms/HarnessUnderChassis.jpg
http://i494.photobucket.com/albums/rr309/planbms/UnderChassisHarness.jpg
-There is a carpet flap in front of the passenger seat where the AEM unit can hide in there. This allows for easy viewing of the status lights
-Take the wiring side of the harness and route it to the InforMeter. Ours is on the left side of the dash, so we ran it through the center console
-From here we connected the red wire from the AEM harness to the cig lighter power wire, and the black wire to the cig lighter ground to power the AEM unit.
-Run the remaining harness to your InforMeter, and connect the white wire from the AEM unit to the Pink wire off the InforMeter
-Brown wire is chassis ground
-Grey wire is not used for the InforMeter.
InforMeter Setup:
From the InfoTouch display:
-Press the screen
-select and press “SETTING”
-press “ANALOG V”
-press “ITEM”
-press “A/F”
Since AEM's Voltage Range of the sensor is .5V - 4.5V a little math is invloved to make it work with the InforMeter since the Greddy unit reads from 0-5V. It's easy:
There will be two buttons, “CONVERSION 0V” and “CONVERSION 5V”. What this is asking for is what AFR the O2 sensor reads at a particular voltage. The InfoTouch will then convert these voltages into meaningful AFR values displayed on screen.
AEM users will need to put in 7 for ”CONVERSION 0V” (meaning A/F should read 7:1 at 0V) since that is the closest value according to AEM's equation 2.375(V)+7.3125 = A/F value @ 0v
“CONVERSION 5V” will be 19.
Some wideband sensors have different voltage ranges, so just use the equation above to find out what number to use for the InforMeter.
TADA!
http://i494.photobucket.com/albums/rr309/planbms/INFOAF.jpg
WIRING REFERENCE
Red - 12V Switched Power Source / 5A Fused
Black - Ground
White - Connect to Pink from InforMeter
Brown - Ground
Grey - Not used for InforMeter