MAF clamp

[sharky_70 0]

what one are you VRT guys using/used when running a Begi?

i hear split second tuning mentioned, but they list a few on their site. whats the one to go for? also are they available in the uk or just order fromt he states?

[FishWick 21]

VC2 mate - http://www.splitsec.com/products/vc2/vc2ds.htm

If you're good with electronics, you can make one yourself for a few quid. It's mainly just diodes.

Anyway, you stick the clamp onto a 12V supply, put 12V onto the blue wire and put a voltmeter onto the blue/red wire and. Turn the adjustment screw until there is 4.75 V on the blue red wire.

4.75V is a safe limit and allows for voltage creep. If you find you're still getting MAF clipping, wind it back to 4.5V

[sharky_70 0]

cool thats the one i'd seen, not available from any uk suppliers then?

[FishWick 21]

Not that I'm aware of

[Euro 0]

Hi brothers,

If we apply full throttle & fuel cut suddenly for 0.5 second then recover, then a fault code 00553 appears.

Does it mean the MAF read and sent more than 5 Voltes to the ECU?

If the supplier says the chips is tuned without the MAF clamp, does it mean that we need to relocate the MAF (on bumper) further away from the Supercharger to solve the fule cut problem?

Thanks,

Euro

[FishWick 21]

Sounds like it. You normally get a "Maf - short to b+ - intermittant " type error when that happens.

The maf needs to be installed before the charger but it can still exceed 5v if it's not been mapped to take it.

[Euro 0]

I tested drive again gentlely today, checked no fault code.

Then applied full throttle in straight road, fuel cut again and code 00553 appear again, it proves that hard acceleration will have the problem.

Will the car be locked in limb mode if the code 00553 appear?

Anyone confirm me if install the MAF further away from the supercharger can be a solution?

Euro

[Euro 0]

If the tuning chips on hand is already a software tuned without the MAF clamp (considered the 5V issue), what cause the fault code 00553?

What steps I need to take without buying another software from somewhere?

I don't know electronics, please help.

Thanks.

Euro

[Euro 0]

Hi all,

Anyone got this similar issue?

Euro

[DrRich 1]

Also be aware that if you remove the 'flow straightener' - the honeycomb mesh on the inlet side of the MAF tube - that this 'Short to B+' can happen even when normally aspirated, presumably due to turbulence. I had this problem on my car when still NA having removed it to get that 'extra bit of performance' - deffo not worth it. Only happened when I gave it full throttle, like you say; if I was moderately gentle it never popped up, then immediately appeared if I booted it hard. Once replaced, never had that code again. I imagine it might also happen if you mount the filter directly on the MAF but can't confirm this.

[Euro 0]

Thank you

[Euro 0]

Thank you for information。

It is worth to add a tube between MAF and filter for a trial。

Euro