Intake for 330i bringing up service engine soon light

[Bimmer330i]

Ive got a '01 330i and put a high flow air filter on the intake in replacement of the stock box. The service engine soon light has been coming on intermittently for the past couple months. Any suggestions as to the cause and possible fixes to the problem?
Thanks for the help,
Will

[02325]

put the factory intake back on.

Get the codes read. I have a feeling you are using an oiled type filter and the oil is causing the DME to misread the MAF. When this happens the DME turns the CEL on. K&N or alike are known to destroy MAF in cars. they even have a disclamer on their website.

[smolck]

Originally Posted by Bimmer330i

Ive got a '01 330i and put a high flow air filter on the intake in replacement of the stock box. The service engine soon light has been coming on intermittently for the past couple months. Any suggestions as to the cause and possible fixes to the problem?
Thanks for the help,
Will

I have heard of this. Mainly with oiled filters. Best one I have found are the ITG foam one's I got no CEL and had one for a year.

[Bimmer330i]

Originally Posted by 02325

put the factory intake back on.

Get the codes read. I have a feeling you are using an oiled type filter and the oil is causing the DME to misread the MAF. When this happens the DME turns the CEL on. K&N or alike are known to destroy MAF in cars. they even have a disclamer on their website.

Okay ill try that and see how that works,
Much obliged

Originally Posted by smolck

I have heard of this. Mainly with oiled filters. Best one I have found are the ITG foam one's I got no CEL and had one for a year.

Where could i find one of those filters? Local auto parts store or online?
Thanks,

[beenyweenies]

Originally Posted by 02325

put the factory intake back on.

Get the codes read. I have a feeling you are using an oiled type filter and the oil is causing the DME to misread the MAF. When this happens the DME turns the CEL on. K&N or alike are known to destroy MAF in cars. they even have a disclamer on their website.

I agree about putting the stock box back on to see what happens code-wise, but I fully disagree about the K&N filters. The "disclaimer" on their site says dealer/service techs are full of shit, service people say this because it's a lifetime filter so they can't swap a new filter in at every turn and charge you $69.95 for the privilege. They present some pretty compelling facts that I'm inclined to believe:

http://www.knfilters.com/maf/massair.htm

[danewilson77]

Originally Posted by Bimmer330i

Ive got a '01 330i and put a high flow air filter on the intake in replacement of the stock box. The service engine soon light has been coming on intermittently for the past couple months. Any suggestions as to the cause and possible fixes to the problem?
Thanks for the help,
Will

How is the car running?

[Bimmer330i]

Ive noticed more torque in the low end since i put the new filter on and it seems to be running as good if not better then it had.

Originally Posted by danewilson77

How is the car running?

[slvrXI]

Sounds cool too doesn't it...

[Bimmer330i]

Originally Posted by slvrXI

Sounds cool too doesn't it...

Yeah it sounds pretty great with it and the back muffler cut out

[danewilson77]

Originally Posted by Bimmer330i

Yeah it sounds pretty great with it and the back muffler cut out

lol