MAF code no more

[viper501]

I hesitate to say it, but I think my MAF coded check engine light has been banished. Was getting the P1128(?) code indicating MAF issues. Took it to Porsche and they said it was intermittent and had occured five times during a three day period. I suspected that the previous owner's K&N filter may have been a contributor so I picked up an exhorbitantly overpriced paper factory filter from them while I was there. (The only good thing is that they didn't charge me for the ECU check :D )

Anyway, replaced it and cleared the codes out. Been two days of fairly heavy driving and idling with no CEL at all. Had a MAC scanner hooked up to it to log the data if it popped up and it never did. :clapping:

So, anyone want to buy a dirty K&N panel filter for a 996?

[JimPDX]

I hesitate to say it, but I think my MAF coded check engine light has been banished.  Was getting the P1128(?) code indicating MAF issues.  Took it to Porsche and they said it was intermittent and had occured five times during a three day period.  I suspected that the previous owner's K&N filter may have been a contributor so I picked up an exhorbitantly overpriced paper factory filter from them while I was there.  (The only good thing is that they didn't charge me for the ECU check :D )

Anyway, replaced it and cleared the codes out.  Been two days of fairly heavy driving and idling with no CEL at all.  Had a MAC scanner hooked up to it to log the data if it popped up and it never did.  :clapping:

So, anyone want to buy a dirty K&N panel filter for a 996?

<{POST_SNAPBACK}>

K & N filters are very good. The trick is not to use very much oil and after you clean and re-oil the filter is to let the filter leach out any excess oil before you put it in your car. I put mine in a brown paper grocery bag and let it sit overnite...then put it in the car and never have had it throw a code.

Keep the K & N filter. Go down to the car store and get some of their Filter cleaning soap and some K & N oil. Use only their products. Clean real good and let dry in the sun...then LIGHLY re-oil the filter and let it soak out on some paper or in a paper bag.

I think you will be pleasantly surprised how well they do work...

Good luck

[viper501]

Jim, I think the K&N may serve some purposes, especially when the filter element has been fully loaded with debris/dirter. However, the tests I've seen that compare flow rates for 'new' OEM and K&N show no difference in flow rates. However, the data indicates some lesser filtration by K&N compared to OEM paper. If I can find the links to the testing, I'll post 'em here. That said, I think your method for avoiding excess oiling is a great idea. :thumbup: