Anyone ever used a Q45 MAF with A32 ECU?
 

Just curious. I have access to one ($30). The reason I ask is that I'm working on getting my 3.5 up and running NA at first. I'll be running a custom intake manifold with a Q45 TB mated to it, and a Q45 MAF would make for an easy piping solution (the entire intake system will be custom, as I have no stock or aftermarket intake parts of any kind to use). I have a Z32 MAF from my turbo setup obviously but I'd lose some tuning resolution if I were to use that while NA.

Mostly what I'm wondering about is the voltage curve is similar to the A32 MAF (I'm going to look for a Q45 FSM right now). I could probably make it work with the emanage, but I'd like to be able to get the thing up and running without having to fiddle around with the emanage initially.

Insights?

edit: eh, I just realized it probably doesn't matter if the voltage curves match or not, because i'll be flowing the same amount of air through a larger diameter which would - even if the voltage curves are identical - result in a lower maf voltage than the ECU would expect to see, which would trick the stock ECU into thinking there was less air than there really was, and it'd run lean at idle.

I use an M62MAF with my A33B. 95BLKMAX uses essentially the same set-up on his A32B.

Using the SAFCII, we are able to tell the ECU we are using the Q45 MAF and the A32 ECU. Depending on your software set-up, yes it should be possible, but at the moment, don't think it has been done. Tavarish talked about doing it but never posted if he ever did.

Mine runs lean @ idle(16.5), and even more lean when in P or N. I add 7% when in gear, and 12% when in P/N, via SAFCII in order to get back to stoich. I also have my PCV d/c’d, so that alone makes it run lean already. EB/EU both have the same setting for different MAF input. But using that settings via SAFCII, WOT AFR is not affected.

And like I stated, even the lowly SAFCII has that setting option. I don’t think the VAFC has that option though since all inputs are relative to Honda/Acura. And I’m guessing the NEO has this option as well.

There’s always the FP situation too (add PSI to get closer to desired AFR).

I hadn't even thought about the fact that I could concievably just change the MAF setting on the EU. duh. thanks for that.

what is an M62MAF. I associate M62 with eaton blowers.

Yup, I used to do that too (Eaton blower reference) It's a BMW engine code (even though it has various displacements).


It's the famed Land rover MAF housing. A33 sensor fits right in. It is used on many cars, but well, M62 seems to be the catch all phrase.

In your case though, it would just require the setting change, as you already noted.

just out of curiosity, how large is the housing you are using?

82mm ID. Strange because the TB is 70mm, but :gotme: