DIYPNP/MTX-L O2 readings
10-21-2011, 01:38 PM
#1
DIYPNP/MTX-L O2 readings
I found two other articles that are somewhat similar to the issue im having but not exactly.
Please be patience with me since I'm very new to Megasquirt and tuner studio so i may need some things spelled out. I will be getting the car professionally tuned.
Here are the details:
90 1.6L Miata
550 CC injectors
Reverant built DIYPNP
MTX-L
I want to make sure everything was running properly with the ECU before installing my turbo so i installed the injectors, MTX-L, and ECU while the car is still NA. The car runs fine but the AFRs on tuner studio and the wideband are pretty off. The wideband is connected and grounded off the a piggy-back plug coming out of the MS per Reverant's instructions.
Can anyone please help me get the AFRs on the wideband and Tuner Studio to match???
Thanks everyone
Please be patience with me since I'm very new to Megasquirt and tuner studio so i may need some things spelled out. I will be getting the car professionally tuned.
Here are the details:
90 1.6L Miata
550 CC injectors
Reverant built DIYPNP
MTX-L
I want to make sure everything was running properly with the ECU before installing my turbo so i installed the injectors, MTX-L, and ECU while the car is still NA. The car runs fine but the AFRs on tuner studio and the wideband are pretty off. The wideband is connected and grounded off the a piggy-back plug coming out of the MS per Reverant's instructions.
Can anyone please help me get the AFRs on the wideband and Tuner Studio to match???
Thanks everyone
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10-21-2011, 01:43 PM
#4
Boost Czar
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,490
Total Cats: 4,079
tools > calibrate AFR
on the drop down go to the bottom to "custom values" or whatever it is, then type in the ones above. click send/burn.
the ground on the db15 makes its way back to the head.
on the drop down go to the bottom to "custom values" or whatever it is, then type in the ones above. click send/burn.
the ground on the db15 makes its way back to the head.
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10-22-2011, 02:52 PM
#12
Scratch that, yellow from the mtx l needs to be connected to the brown to the diypnp, as stated in number four on pag four seen here:
http://www.innovatemotorsports.com/s...Manual_1.1.pdf
That link also says the calibration numbers that should be entered:
0V = 7.35 AFR and 5V = 22.39 AFR
http://www.innovatemotorsports.com/s...Manual_1.1.pdf
That link also says the calibration numbers that should be entered:
0V = 7.35 AFR and 5V = 22.39 AFR
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10-22-2011, 02:54 PM
#13
http://www.innovatemotorsports.com/s...Manual_1.1.pdf
if you look at page 4, white is headlights
1. Connect the RED wire to a switched 12V source. A switched 12V source goes on as
soon as the ignition on the car is on. Make sure the connection is fused with a
minimum fuse size of 3A.
2. Connect the BLACK wire to a ground source. Avoid noisy ground sources, such as
grounds used for radio and or ignition sources.
3. Connect the WHITE wire to a headlight power wire (a wire that supplies current to
the headlights). This enables the display to dim for better nighttime viewing. DO
NOT CONNECT THIS WIRE TO THE HEADLIGHT DIMMING WIRE. Connection to
this rheostat type of switch will cause the gauge to malfunction. If you chose not to
utilize the dimming feature, connect the WHITE wire to ground.
4. Optionally, the YELLOW (Analog out 1) and/or BROWN (Analog out 2) can be
connected to the analog inputs of other devices such as data loggers or ECUs. If
either one or both of these wires are not being used isolate and tape the wire(s) out
of the way. The default analog outputs are as follows: Analog output one (yellow) is
0V = 7.35 AFR and 5V = 22.39 AFR. Analog output two (brown) is 1.1V = 14 AFR
and .1V = 15 AFR. This is a simulated narrowband signal.
if you look at page 4, white is headlights
1. Connect the RED wire to a switched 12V source. A switched 12V source goes on as
soon as the ignition on the car is on. Make sure the connection is fused with a
minimum fuse size of 3A.
2. Connect the BLACK wire to a ground source. Avoid noisy ground sources, such as
grounds used for radio and or ignition sources.
3. Connect the WHITE wire to a headlight power wire (a wire that supplies current to
the headlights). This enables the display to dim for better nighttime viewing. DO
NOT CONNECT THIS WIRE TO THE HEADLIGHT DIMMING WIRE. Connection to
this rheostat type of switch will cause the gauge to malfunction. If you chose not to
utilize the dimming feature, connect the WHITE wire to ground.
4. Optionally, the YELLOW (Analog out 1) and/or BROWN (Analog out 2) can be
connected to the analog inputs of other devices such as data loggers or ECUs. If
either one or both of these wires are not being used isolate and tape the wire(s) out
of the way. The default analog outputs are as follows: Analog output one (yellow) is
0V = 7.35 AFR and 5V = 22.39 AFR. Analog output two (brown) is 1.1V = 14 AFR
and .1V = 15 AFR. This is a simulated narrowband signal.
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10-22-2011, 02:56 PM
#14
Scratch that, yellow from the mtx l needs to be connected to the brown to the diypnp, as stated in number four on pag four seen here:
http://www.innovatemotorsports.com/s...Manual_1.1.pdf
That link also says the calibration numbers that should be entered:
0V = 7.35 AFR and 5V = 22.39 AFR
http://www.innovatemotorsports.com/s...Manual_1.1.pdf
That link also says the calibration numbers that should be entered:
0V = 7.35 AFR and 5V = 22.39 AFR
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