MAF SENSOR

[Rsjvr6 1]

Hi Guys

I am in need of some desperate help. I have fitted an induction kit to my golf VR6 OBD2 and since fitting it the car is backfiring and running rough with a loss of power. I have been on the forum and it was suggested that I unplug it and test the car out and it ran like a dream. I plugged in the MAF again after cleaning it with WD40 and within a day the same problem occured. I know the MAF regulates the air fuel mixture or has something to do with that. I called EURO car parts who have quoted me £200 for a MAF (TBH id rather spend that money on a set of JOM Coilies - lol).

So I now have the following questions-

- Has the induction kit changed the level of air going through the throttle body?

- Does the MAF need to be plugged in with the K&N induction kit?

- What will happen if I leave my MAF unplugged and continue to drive? It seems to drive a lot better and is more pokey and fuel efficient without the MAF plugged in.

Any help is appreciated. I hate driving a VR6 which lacks power.

Cheers

Ranj

[ashmk3 0]

is the k&n oiled? if so this could be the cuplrit as the oil kills the maf. which is why alot of people go for the cda.

[Rsjvr6 1]

I think it may be mate. So what does the oil have to do with the problem? To be honest it was a cheap buy from a guy on the forum here, so I thought why not. So if I have a K&N is it wise to unplug the MAF

[craggsy 91]

I think cleaning it with wd40 might of done more harm than good!

Should clean em with electrical contact cleaner

[craggsy 91]

Also driving without the maf will be ok for a short time but not permanently. The engine needs to know how much air is getting in to it somehow

[ashmk3 0]

i couldnt tell you whether to unplug it or not, but the oil gets on the sensors and then it cant read the air going over it to dump the right fuel in. did you clean the filter before you fitted it? if so did you let it dry completely?

[ashmk3 0]

dam got beaten to it

[Rsjvr6 1]

I didnt clean the filter before I fitted it It was purchased of Jimmy B on this forum (Jimmy if you read this - speak up mate lol). But it did feel dry. It was on his car which was an OBD1 VR.

This MAF is completely doing my nut in now. Would it be wise to unplug it, get some electric contact cleaner and clean the MAF, clean the induction kit with the solution and let it dry, then plug everything back in and wish for the best?

Heres the joke - I have also sold my original airbox with the K&N panel to someone on this forum, LOL LOL LOL

[craggsy 91]

WD40 leaves a thin film on things. Spray it on you hand and it feels greasy, electrical contact cleaner evaporates after it's cleaned and leaves no residue.

Also you car will run better with no maf as it's basically chucking fuel in as it's guessing at how much air it's getting

[Rsjvr6 1]

So running it without a MAF wont cause major damage to the engine. Ironincally im getting fuel economy with the MAF unplugged. So long as it doesnt cause the engine any harm im happy to unplug it and buy some coilovers :-)

[craggsy 91]

It needs to be plugged in mate trust me. VW put it there for a reason

[jimmyb 2]

i will spk up,lol it is a dry k&n filter and was on mine for about 6-7 months (roughly) with no problems at all,all i can think off is that the air flow meter is shot.i dunno weather its because of the filter or not,but i had 1 on my old vr6 what never gave me no problems either,what i would do if i was you is look for a second hand original vw air flow meter,sos if the filter caused the problem,i would be very suprised if it did tho,good luck and heres a link http://cgi.ebay.co.uk/VW-Golf-Vento-Corrado-VR6-Air-Flow-Meter-/200524507457?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2eb0312941#ht_500wt_1154

[Rsjvr6 1]

Its not your fault at all Jimmy, How are you getting on with your hunt for a new VR.

Craggsy I was just looking though the Market Place on here and out of the 3 induction kits which are for sale only 2 were plugged into the MAF..

[hvr6 88]

very unlikely that changing the filter wouldnt cause this problem...suggest cleaning MAF with electrical contact cleaner and seeing if that does the job

[craggsy 91]

HMO.o

[Rsjvr6 1]

Cool now where can i get this electrical contact cleaner from?

[hvr6 88]

Halfords

[hvr6 88]

HMO.o

? eh? you ok Craig?!

[jimmyb 2]

well im driving a heap of a £300 mk2 gti atm on its last legs,and funnily enough the air flow meter on that was crap,but i adjusted it and was suprised by the results:) shame u cant do this on the vr6 i will get the use out of the mk2 first whats still got 6 months mot,then hopefully i will have saved enough to get a nice vr,and i just thought does your vr feel any slower with the air flow meter off compared to when u had air-box on etc?

[jimmyb 2]

very unlikely that changing the filter wouldnt cause this problem...suggest cleaning MAF with electrical contact cleaner and seeing if that does the job

very unliky it would cause prob?

or very unlikely it wouldnt? :S

[Rsjvr6 1]

No Jimmy the car is actually faster with the MAF of, which is really baffling because if it was a faulty MAF with and airbox or induction kit, then wouldnt the car run in safe mode?

[Rsjvr6 1]

Right lads im clocking off and getting out of work, and thanks for all your help lads, much appreciated, Jimmy good luck with the MK2... LOL

[jimmyb 2]

i would say the air flow was flucked anyway then,and has just decided to give u even more grief,get another,cus u will notice the difference,in fuel too,

[jimmyb 2]

Right lads im clocking off and getting out of work' date=' and thanks for all your help lads, much appreciated, Jimmy good luck with the MK2... LOL

[/quote']

good luck crashing it? or blowing it up? the thing i like about the mk2 is if it gives me any grief i can just kick the bugger!

[hvr6 88]

very unlikely that changing the filter would cause this problem...suggest cleaning MAF with electrical contact cleaner and seeing if that does the job

very unliky it would cause prob?

or very unlikely it wouldnt? :S

sorry doing 10 things at once as usual!

filter change an unlikely cause...