Just had engine managment light come on and diagnostics say that it's intermittent fault with MAF. Just going to replace with new golf R32 MAF instead of messing about cleaning etc. So a quick question for anyone who is running R32 MAF at present...

Was it a direct bolt on exchange and were there any problems encountered? Thanks.

Why not just get the correct replacement MAF for your car?

Why not just get the correct replacement MAF for your car?

Because I run a lot more than standard power and the "correct" replacement as you put it can't handle the required airflow.

Just had engine managment light come on and diagnostics say that it's intermittent fault with MAF. Just going to replace with new golf R32 MAF instead of messing about cleaning etc. So a quick question for anyone who is running R32 MAF at present...

Was it a direct bolt on exchange and were there any problems encountered? Thanks.

Is it a more reliable MAF? Ive heard people replacing the MAF with ones from another vag car. Was intrested in this myself if mine ever packs in

Get a new remap which deletes the need for MAF :-)

Is it a more reliable MAF? Ive heard people replacing the MAF with ones from another vag car. Was intrested in this myself if mine ever packs in

When running high pressures with a hybrid the standard MAF causes problems after around 2 bar of pressure (I think?). The R32 MAF runs a higher rating so problems when running higher boost is not encountered.

Get a new remap which deletes the need for MAF :-)

???

When running high pressures with a hybrid the standard MAF causes problems after around 2 bar of pressure (I think?). The R32 MAF runs a higher rating so problems when running higher boost is not encountered.

???

I know for a fact Rich Washbrook can map out MAF's, ask him! That's what I have on mine.

Oh, what you could do is fit a bigger MAF pipe, standard MAF and re-calibrate......

I know for a fact Rich Washbrook can map out MAF's, ask him! That's what I have on mine.

Oh, what you could do is fit a bigger MAF pipe, standard MAF and re-calibrate......

How does he eliminate the MAF? I can't understand how this works... I'm not saying it's not possible, but the way things work with the MAF / MAP sensors i.e. they effect the amount of fuel delivered, seems to make them a necessity.

I have a Richard Washbrook map and tried various MAF's, kept failing, went back to a standard PD130 MAF and had the map tweaked and it's been fine since.

I know for a fact Rich Washbrook can map out MAF's, ask him! That's what I have on mine.

Oh, what you could do is fit a bigger MAF pipe, standard MAF and re-calibrate......

I am very curious about this.

How can you map out the MAF when it tells the car how much air is coming in and so is one of the parameters to how much fuel it needs to deliver?

isn't the MAF sensor used more for EGR/emissions control? you delete the EGR and tune using the MAP sensor, which doesn't fail every 5 minutes

That's correct.

There's a map which references air flow and limits your injected quantity. Basically, if the airflow isn't there it wont inject more diesel than required.

You can make some modifications to the software so that the ecu references from the MAP sensor (Speed Density) but this is never as perfect as MAP and MAF references.

On our stage 3 kits we fit a MAF sensor from the 1.8T BAM engine into the standard housing and change the MAF linearisation in the ECU to scale it back in.

Kev

I am very curious about this.

How can you map out the MAF when it tells the car how much air is coming in and so is one of the parameters to how much fuel it needs to deliver?

Not all our engines run a MAF.

isn't the MAF sensor used more for EGR/emissions control? you delete the EGR and tune using the MAP sensor, which doesn't fail every 5 minutes

Quote for truth.

As soon as MAP senses boost, it controls the fuelling.

Map senses boost pretty much instantly anyway on these VNT's!

Just get rid, saves you hassle.

You can make some modifications to the software so that the ecu references from the MAP sensor (Speed Density)

Small correction, Bosch diesel controllers never operate in speed density, even when running MAP based smoke limitation.

That's correct.

There's a map which references air flow and limits your injected quantity. Basically, if the airflow isn't there it wont inject more diesel than required.

You can make some modifications to the software so that the ecu references from the MAP sensor (Speed Density) but this is never as perfect as MAP and MAF references.

On our stage 3 kits we fit a MAF sensor from the 1.8T BAM engine into the standard housing and change the MAF linearisation in the ECU to scale it back in.

Kev

how not perfect is it? I replaced my MAF not too long ago and I'm getting MAF related faults logged again - I've every intention of ditching it when the current turbo is replaced with a 2260 to avoid it causing problems in the future