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( Revised )apexi fc commander pro, Pegging Maf whats next?

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Hello all

I did a quick edit on this post because even I didn't understand my question.

This is my first time using an apexi fc unit. I have used SCT and Diablo before.

Here is my problem, I am tuning a Toyota celica 1.8 l with an aftermarket turbo.

At 6 k it pegs the Maf ( about 5.01 volts )

It already has a 3" MAF pipe which replaced the stock 2.5 "

that's as big as I have found for this car and also I don't want the pipe to be so big I start having more drivability problems.

I know with some fords, like my Mustangs. the Maf is capable of going higher than 5 volts, but the ford ECU wont recognize anything above 5 volts. But I haven't seen that to be the case here.

what are my choices?

Thanks

Your revision made me laugh, so thanks for bringing some humour to my morning :)

It's pretty common with any MAF sensor to end up reaching the end of the scale if you make enough power - This is one of the downsides of a MAF sensor. I'm not familiar with the Celica MAF so it's hard to be very specific. Normally in the Power FC there is the option to select a few different options for the MAF scaling - The Nissan VG30 for example is a very popular option.

If you have the sort of MAF sensor that bolts into a pipe, it's possible to fit it to a larger pipe and gain some headroom in the sensor's reading. If you do this though you still need to rescale or recalibrate the MAF translation table to suit. If you're seeing 5 volts though, this would suggest you are maxed out on the sensor's ability to read more airflow.

What kind of power are you making?

What is the design of the intake pre-AFM? I have seen people have to clear a run and get extremely high readings and when they modify the intake they find a lot more head room is available

Is this the 1zz-fe or 2zz-ge 1.8 engine??? if so, the MAF from a subaru WRX will work. this is a common mod once you reach the max on the toyota maf in a 3" tube.