[Joshinator99]

Originally Posted by radz28

There are way to use short term and long term fuel trims and calculate errors based off MAF airflow. It's a pretty complex set-up (to me) but it doesn't use WB input. It's all based from fuel trims.

I'm used both and think I'm a convert now. The argument for this configuration is there one is eliminating outside influence and other data in the information stream in the car using this method. That seems to make sense. This comes from an alleged (OEM calibrator).

When you do some digging, professional tuners have posted after WB-tuning they back-check the tune with these same trims and information, so it seems to have a good base of integrity. It's easier and more reliable because you can tune the MAF and the VVE at the same time. On some cars, getting the car into SD is tough because the car throws a MAF error and won't let you get into boost. I've run into this on cars. I've done both and end-up coming out with MAF/VVEs that are usually pretty dead-on each other.

It's up to you. Everyone's got their idea of what's right. I don't know which is, but I hear good comments about both. I've also had good luck with both, too. I'm certainly NO expert.

I use that for idle and part throttle tuning. You cannot do that for WOT since the car only knows if it’s richer or leaner than 14.7...not helpful under Power Enrichment. Need to know a lot more accurately than that and the WB is how you do it.