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[The1]

im not sure what brands are out there nowdays, but anything that can feed the relevant fuel reading range as a 0-5volt output and wire that into pin B10 will be fine. You can adjust the ADX calculation to suit what the range is.

[brindo]

I don't know the Ecotecs that well, but if the engine is stock, might be best off staying with the stock tune. There may not be a lot to be gained. As your running an Auto, maybe more to be gained with the transmission settings. A Corvette servo too can be a pretty quick and easy mod.

[immortality]

What temp thermostat are you running?

[immortality]

There probably is some power to be found from the stock tune. The factory tunes runs quite rich in stock form. Using the $51 PE Calculation spread sheet you can see over 2400rpm the commanded AFR goes to 12.05 which is too rich for a n/a engine.

Zero out the Power Enrichment Trim V's RPM table and the commanded AFR will stay at 12.8:1 right through the rpm range. See

I'd also throw a 180°F/82°C thermostat in it.

[Thomas2004Rodeo]

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[immortality]

I have seen some benefit in leaning out to 13:1(after peak torque) however right now you don't have a WB02 sensor and although the table says target AFR is 12.8 we don't know what the actual AFR's are because when in open loop the PCM is basically using the airflow from the MAF and calculating how much fuel to add with no way to actually measure that. You have also changed the intake setup so the MAF might not read exactly the same as it did when it was in a Commodore. There is also some argument that running slightly richer in the mid rpm range up to peak torque is more beneficial but without that WB02 sensor there is no way to test this on your vehicle.

The ecotec motor is more sensitive to timing than earlier V6 motors, having said that the factory tune is based on 91ron fuel so if you fill the tank with 95 or 98 you have some scope to play with timing but I'd go slow because without having any datalogs you aren't exactly sure where in the timing table the engine is running.

[Thomas2004Rodeo]

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[In-Tech]

Hiya,
Another warning, play it safe with Lamda/AFR till you learn what it wants. Keep in mind low overlap valve events will change the "lying" o2 sensor. Meaning, a higher overlap cycle will send o2 to the sensor saying it's leaner than the actual combustion. Many people tune to o2 but unless you know how many variables are scewing the sensor, start rich and learn what the engine actually wants

[Thomas2004Rodeo]

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[immortality]

Yes that looks like the correct enhanced tune.