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Old 07-27-2015, 12:39 AM   #1
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Default Tunerstudio wont read wideband

So Im hooking up my LC-2 to megasquirt (DIYPNP 3) and I cant get tunerstudio to read it. The controller is grounded to Throttle body and uses the power window for 12v power. I set both the analog outputs to read 0v=7.35 AFR and 5v=23.59 AFR. I wired the brown analog output right to pin 2c on the ecu and the yellow to the DB gauge.

I did a free air calibration.

In tunerstudio i set the project properties to wideband(AFR) and calibrated the AFR to the LC1/LC2 default. In AFR/EGO control I set it to 1 wideband and EGO1=normal ego

Still nothing. The afr gauge in TS reads 7.4 while my DB gauge reads just fine. I even switched the analog output and the DB gauge is fine which leads me to believe its the ecu connection or a setting in TS.

Any ideas?

My car is a 2000 CA Spec. Are the Ca spec ECU pinouts different from the federal?
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Old 07-27-2015, 12:14 PM   #2
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Check the voltage on the analog output and see if it's giving the signal it should be.
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Old 07-27-2015, 01:55 PM   #3
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Check the voltage on the analog output and see if it's giving the signal it should be.
With a multimeter? how would i do that. I checked in LM programmer and logworks and everything is normal
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Old 07-27-2015, 01:57 PM   #4
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how did you wire the brown wire to 2C?
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Old 07-27-2015, 02:03 PM   #5
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I've soldered the brown wire using 18 gauge straight to 2c and I'very tried running it all the way through the firewall to the black ego1 input wire.
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Old 07-27-2015, 02:20 PM   #6
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and that was a solid blue wire?
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Old 07-27-2015, 02:31 PM   #7
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make sure you didn't confuse the serial wire with analog wire
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Old 07-27-2015, 02:58 PM   #8
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make sure you didn't confuse the serial wire with analog wire
The LC2 has to serial CONNECTORS and 2 analog output wires (yellow and Brown). I connected per the instructions for the LC2 and DB gauge. LC2's yellow wire to the DB gauge's white wire. LC2"s brown wire to the ecu. Just for added assurance I went into LM Programmer and changed both the analog outputs to have identical settings. So far the DB gauge works great but i cant get it to connect to MSPNP2

Last edited by armfish02; 07-27-2015 at 03:24 PM.
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Old 07-27-2015, 04:05 PM   #9
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Anything wrong here?


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Tunerstudio wont read wideband-80-20150727_120238_17d284c13cfb611337f86ac941034c856be567cd.jpg  
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Old 07-27-2015, 04:23 PM   #10
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Anything wrong here?


None of those settings have anything to do with your car reading the wideband correctly. They are about using your wideband in conjunction with EGO.
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Old 07-28-2015, 10:02 AM   #11
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Check the voltage from the wideband output wire to ground with a multimeter set so it can read from 0 to 5 volts.
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Old 07-31-2015, 07:38 PM   #12
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Check the voltage from the wideband output wire to ground with a multimeter set so it can read from 0 to 5 volts.
Both analog outputs are providing adequate voltages. IM starting to think its a problem in TS or maybe my ecu pin
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Old 08-04-2015, 04:29 AM   #13
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bump
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Old 08-04-2015, 07:47 AM   #14
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Quote:
Originally Posted by armfish02 View Post
Both analog outputs are providing adequate voltages. IM starting to think its a problem in TS or maybe my ecu pin
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and that was a solid blue wire?
well?
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Old 08-04-2015, 02:42 PM   #15
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well?
Yeah its the blue wire
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Old 08-04-2015, 03:03 PM   #16
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The 2000 MSPNP (all states) should looking for the 0-5v signal on 2C (blue).

If you confirmed that it's going to that spot, and getting voltage, then I can only think youre not looking at the correct gauge in TS?
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Old 08-11-2015, 04:18 PM   #17
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I changed the project properties to wideband (afr)

I set the ego control to 1 wideband from the normal ego port

I calibrated the afr table.

Still nothing

The ego gauge in TS shows .16 volts while my multimeter read 2.8 volts right where I spliced into the ecu.

I'm out of ideas...
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Old 08-11-2015, 05:33 PM   #18
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so when you're reading your voltage you see 5v, but somehow MS sees ~0v ( ?

going out on limb here and still suggesting you did not hook up your wbo2 output wire to the correct o2 input wire that TS is looking for.

what happens when you use afr/ego inputs > air:fuel ratio 1?
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Old 08-11-2015, 05:53 PM   #19
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Quote:
Originally Posted by Braineack View Post
so when you're reading your voltage you see 5v, but somehow MS sees ~0v ( ?

going out on limb here and still suggesting you did not hook up your wbo2 output wire to the correct o2 input wire that TS is looking for.

what happens when you use afr/ego inputs > air:fuel ratio 1?
Air:fuel ratio 1 shows 7.80
Exhaust gas oxygen 1 shows .16 volts

This is with the car set to acc after a short drive and the db gauge reading 17.4 afr
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Old 08-11-2015, 07:09 PM   #20
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Quote:
Originally Posted by Braineack View Post
so when you're reading your voltage you see 5v, but somehow MS sees ~0v ( ?

going out on limb here and still suggesting you did not hook up your wbo2 output wire to the correct o2 input wire that TS is looking for.

what happens when you use afr/ego inputs > air:fuel ratio 1?
It's going to the blue wire 2nd from the right on the top of the middle connector
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