Looking for help setting up MSPNP [VIC]

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gslender
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Re: Looking for help setting up MSPNP [VIC]

Postby gslender » Tue Jun 17, 2014 2:14 pm

Poida wrote:This is the current AFR table I'm using does it look okay? I'll check the other causes.


The issue is that the logged AFR Target is always 14 so something isn't correct if the ECU thinks the AFR that it should be targeting is always 14.

A valid log file will show differing values for AFR Target as the MAP and RPM move over the different cells across the AFR Table.

G
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Poida
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Re: Looking for help setting up MSPNP [VIC]

Postby Poida » Tue Jun 17, 2014 2:52 pm

So do you think re-calibrating the O2 should fix this issue, because that just sounds weird, why is it actively trying for 14? What settings affect that target within tunerstudios?

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gslender
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Re: Looking for help setting up MSPNP [VIC]

Postby gslender » Tue Jun 17, 2014 5:06 pm

Poida wrote:So do you think re-calibrating the O2 should fix this issue, because that just sounds weird, why is it actively trying for 14? What settings affect that target within tunerstudios?


No, this isn't a O2 sensor problem. One thing for sure, is that the car isn't running at 11 AFR so you've probably got two (2) things wrong - 1st) the O2 sensor isn't calibrated for the type in the ECU config/tune (under tools, Calibrate AFR Table).

And 2nd) the tune or something within the ECU is thinking the AFR Table is 14, or the MAP or RPM is pointing to a cell that is always 14.... so you could plug a laptop into the car and switch to the AFR Table and watch that it is moving all over the table with the RPM revving in neutral. You can also add the AFR Target to the displayed guage or indicator in the dashboard to see what actual value the ECU is thinking it is targeting.

Try those things and focus on the AFR table being reported correct before you worry about the O2 sensor being correct/accurate.
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Poida
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Re: Looking for help setting up MSPNP [VIC]

Postby Poida » Sat Jun 21, 2014 6:33 pm

Okay so time for an update. I was finally able to get TunerStudio to correctly read not only the current AFR, but also the Target AFR.

What I changed:
-Went back and looked at the wiring, made sure all the wires were connected and grounded to the same ground point towards the end of the engine block near the intake.
-Loaded up the LC-2's logworks software and set both analog output cables of the LC-2 (brown and yellow) to read between 0-5v, one of the outputs before were from I think around about 0-1.1v.
-Went into tunerstudio, made sure under project properties and then settings that I had it set to Wideband. Under fuel settings, went into EGO Control and changed the sensor type to a single wideband. And finally made sure that AFR Table under Tools was calibrated for the LC-2 controller.

I then started VE Analyze Live went for a drive and an immediate improvement that's been getting better ever since. Wow these are great when they've got a decent tune running on them. This will do me over until I turbocharge it in a month or two.

Thanks for the help gslender, and everyone else who helped me out.

-Peter

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Re: Looking for help setting up MSPNP [VIC]

Postby NitroDann » Sat Jun 21, 2014 8:15 pm

Awesome effort, a little learning curve and a little money and you get awesome results dont you.

Wait until you have boost and are walking V8s :mrgreen:

Dann
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speed wrote:If I was to do it again, I wouldn't even consider the supercharger.


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