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Has anyone had a wideband sensor on their 1.8T AGU motor before? Just curious what AFR the factory tune typically runs?
I've got one on my car at the moment, when I floor it from idle to redline, the AFR starts at about 13.8:1 and slowly comes down to about 12.5:1 by redline. This seems a tad lean to me for a turbo car, but I know some of the more modern factory tunes don't run all that rich compared to older turbo engines. I've done a lot of work on subaru and nissan motors and they run right down in the 11:1 range on the factory tune under full boost...
Anyone got any other measurements of the factory tune I can compare to?
I should point out that under light throttle the AFR is spot on at 14.7:1 and the fuel trims are all perfect using the scan tool, the car runs strong under boost, so it doesn't feel like I have a fuel delivery problem...
I've got one on my car at the moment, when I floor it from idle to redline, the AFR starts at about 13.8:1 and slowly comes down to about 12.5:1 by redline. This seems a tad lean to me for a turbo car, but I know some of the more modern factory tunes don't run all that rich compared to older turbo engines. I've done a lot of work on subaru and nissan motors and they run right down in the 11:1 range on the factory tune under full boost...
Anyone got any other measurements of the factory tune I can compare to?
I should point out that under light throttle the AFR is spot on at 14.7:1 and the fuel trims are all perfect using the scan tool, the car runs strong under boost, so it doesn't feel like I have a fuel delivery problem...
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