Update on the Miller MAF testing. We tried the MAF in 4 cars at CMP. It goes into a car in about 15min, less so if you’re prepared (see link below). Wasn’t a complete success. We found pretty much what the Aussies told us we’d find…the MAF and it’s chip are more sensitive to engine management problems (mostly vac leaks & failed TPS), then the OEM hardware. If your shit is good, the MAF is fabulous. But not of all of our shit is good. So altho the MAF makes the AFM madness go away, just like the Aussies learned, it’s a transition with some teething pains as unrealized problems all the sudden become visible.
I get occasional CELs in my car, but they go away on their own, giving me not much to chase after. With an AFM, my car seems to run fine. But it looks like I’ve an underlying problem, prob a vac leak, that I’ve not found. The throttle response with the MAF was amazing. I didn’t expect to be able to notice the faster throttle response, but it’s very apparent and can’t help but bring a big grin to your face. But about once/lap at mid throttle, I’d get about a half second of hesitation.
We put it in Barry’s car and he absolutely loved it. No problems at all. Then we put it in Arjun’s car and his experience was like mine. Fabulous, but occasional hesitation. Finally we put it in Emmanuel’s car, which we knew had engine management issues, and altho he got the fabulous throttle response, none of the car’s larger problems went away.
The MAF will go to Road Atlanta next for more track testing in anyone’s car who’s interested. We’ll also be doing a bunch of dyno testing on it. Then it will go to MidAtl for a couple events so they can test it.
I think that what we’re all going to find is that the MAF is fabulous. But is the hassle of fixing pre-existing vac leaks (etc) worth the benefit of making our AFMs go away? I don’t know. Personally…I have a good AFM, so for now, I don’t have a problem that needs fixing. At some point the bitching re. the availability of good AFMs will drown out the bitching re. changing to a MAF. My sense is that the latter group is louder right now. But at least the community knows that there is a solution to the AFM problem if they want it.
What I would ask is that people listen to each other. Those that have not experienced AFM problems should listen to the anecdotes of those who have. And those who have experienced AFM problems should listen to those that have dodged the bullet. Learn from each other’s experiences. Don’t build a wall of certainty around your experience.
Link to thread showing how to mod your AFM cable to allow quick install of the MAF. Testing Miller MAF