MAF Sensor query

[maiden94]

Anybody heard that using a K&N air filter can affect the MAF sensor negatively?

[Infinitiguy19]

Yes!

The Krap and No good filter (K&N) has oil that destroys the sensor. And is more free flowing at the expense of filtration so the engine will suffer as well. Go OEM or go home in my book.

[Q451990]

Yes. Especially if the filter is over-oiled. It's very common for the oil from the filter to migrate back and coat the MAF. I would suggest going back to an OEM filter - and intake if you're running a non-oem filter box. Clean the MAF and it's screen with brake parts cleaner.

Heath

[GTiRSE-R]

Clean the MAF and it's screen with brake parts cleaner.

Heath

NO NO NO!!!! DO NOT USE brake cleaner!!!!! Most brake cleaner has chlorine in them along with other corrosive cleaners which will distroy the diod in the sensor. CRC makes a specifice MAF sensor cleaner that is dielectric.

As long as you dont over oil and keep your MAF senser clean it shouldn't make a difference, But I have heard of the difference in airflow will make a MAF sensor read the airflow different.

Iv been running a N62 MAF with a K&N cone filter for a year and a half with no problems. The MAF sensor also has to be the correct distance from the throttle body.

[Troy8899]

Yes!

The Krap and No good filter (K&N) has oil that destroys the sensor. And is more free flowing at the expense of filtration so the engine will suffer as well. Go OEM or go home in my book.

How many times did I tell you ur advice stink? K&N has no effect to Maf sensor if oil the filter properly.

Yes. Especially if the filter is over-oiled. It's very common for the oil from the filter to migrate back and coat the MAF. I would suggest going back to an OEM filter - and intake if you're running a non-oem filter box. Clean the MAF and it's screen with brake parts cleaner.

Heath

the idea of spraying brake cleaner to maf is dumbest things people do to their cars. I guess bubba can do his own way

this pic is straight out of Q45 FSM[IMG][/IMG]

[Infinitiguy19]

Owners manual and service manual also say not to use any cleaning agents for the fuel injectors as well. Owners manual also says to change oil every 3750 MILES!!!

But low and behold NISSAN FUEL INJECTOR CLEANER: http://www.infinitipartsusa.co...=6268

So why don't you follow the owners manual to the letter ans see how your crap shoot of a car turns out, Your car is OVER RICED.

Troy I wouldn't step in the death trap you call a car if you paid me never mind buy it. So take you retarded posts and GET THE f*** OUT!!!

WHY THE f*** IS TROY STILL ALLOWED ON THIS FORUM DESPITE HIS COMMENTS TOWARDS THE STAFF????

[Q45tech]

When a few dozen members prove [20 years worth of documents] that they have driven a single Q45 in excess of 325,000 miles with oil change habits greater than 3,750 miles or less than 4 changes per year.

Then I might listen to anything a newbee has to say.

Be very careful over the passed 7.6 years on NICO we have seen hundreds even thousands come and go. People not willing to spend the RESEARCH TIME to prove their posts and postulations.

Each answer post should be preceeeded by hours of research and links of proof not flippant unreferenced quasi flippant sentences.

[Q45tech]

Here is a decent explanation of how a MAF [Ford or Nissan Japanese BOSCH] works:

http://www.allfordmustangs.com/Detailed/583.shtml

Pay special attention about air flow disturbances and back shock from the air pulses.

It is often educational to listen to the air flow pulses [electronically] and view them on an oscilloscope..............as there is ONE for each cylinder filling, 4 per rpm.....................idle [650rpm = 43.3 Hertz]

[Justin88na]

I put my huge 9" K&N cone filter from my Z on my Q and havent had any problems. Then again I have only driven 1k miles since. Also, as long as you use non-chlorinated brake cleaner, you are fine.

I cleaned my MAF a week or two ago. First with the recommended dielectric cleaner and then i used a little bit of non-chlorinated brake cleaner. MAF works fine.

As long as it is non-chlorinated, you should be fine.

[Q451990]

WHY THE f*** IS TROY STILL ALLOWED ON THIS FORUM DESPITE HIS COMMENTS TOWARDS THE STAFF????

Is this the same toole that advised flushing brake lines in a container filled with water? I thought we banned him months ago?

[Troy8899]

Owners manual and service manual also say not to use any cleaning agents for the fuel injectors as well. Owners manual also says to change oil every 3750 MILES!!!So why don't you follow the owners manual to the letter ans see how your crap shoot of a car turns out, Your car is OVER RICED.

Fully synthetic Mobil 1 oil can last up to 7000 miles if all highway driving. Combining stop and go in the city and highway driving oil change every 3750 miles is fine.

You are kiddo posting incompetent advices to everyone and nobody really give a damn what u have to say then ask other members for advice simple thing as blown fuses. Many years from now when u fully matured and understand your naive action and laugh ur a$$ off- WE ALL DO

[Q45tech]

SMART MEMBERS tend to ignore advice from newbees [THOSE with LESS THAN 3,000 POSTS] or those who haven't been here for a few years[/B.

Unless they provide written evidence of scientific degrees and evidence of competence besides I've worked at a shop for 20 years.

As we know 90% of technicans are far from experts in anything besides swapping parts...........no theory or mechanical engineering.

"I just got [bought] a Q45 are the most dangerous words. I know everything but {I lie] please help me. If you try to contradict my ignorant thoughts I'll take my posts and go home is the usual threat.Please Do."

[Infinitiguy19]

Is this the same tool that advised flushing brake lines in a container filled with water? I thought we banned him months ago?

Yes and no because it seems this guy is somewhat good with computers.

Fully synthetic Mobil 1 oil can last up to 7000 miles if all highway driving. Combining stop and go in the city and highway driving oil change every 3750 miles is fine.

You are kiddo posting incompetent advices to everyone and nobody really give a damn what u have to say then ask other members for advice simple thing as blown fuses. Many years from now when u fully matured and understand your naive action and laugh your a$$ off- WE ALL DO

So you want me to stop posting in the Q45 section? If so I can gladly oblige I mean I have problems of my own to attend to.

But honestly I spend/waste a great deal time trying to help people, You do just the opposite which begs the question how you sleep at night or in the day what ever.

But it seems like your the experts at blown fuses so what could the problem be???

I wonder how far this has to go before something is done, But I am OK with DESTROYING Troy.

[lino]

Fully synthetic Mobil 1 oil can last up to 7000 miles if all highway driving. Combining stop and go in the city and highway driving oil change every 3750 miles is fine.

I use Mobil 1 full synthetic and change my oil every 3k or 3 months, whichever comes first. I have always followed the 3k/3month rule for a very long time. The last 12 months I only drove 4k and changed my oil 4 times. I would really be uncomfortable changing my oil at 7k and would not trust the filter. How often do you change your oil and what kind of oil do you use?

You are kiddo posting incompetent advices to everyone and nobody really give a damn what u have to say then ask other members for advice simple thing as blown fuses. Many years from now when u fully matured and understand your naive action and laugh ur a$$ off- WE ALL DO

I resent your comments about Paul. He has worked very hard at educating himself about the Q45, probably even more than 98% of the members here and has a strong dedication to it. He may be young and may still be learning but he goes out of his way to help people whenever he can and as best as he can. It takes time and experience.

Sometimes a problem like a blown fuse may seem to be very small yet can be quite tricky. Why not share some of your wisdom on the subject if you know how to fix it. After all, we're all here to help one another, aren't we?

[qship96]

A $22.50 oil analysis from Blackstone Labs will tell you exactly how your oil is performing in your engine under your driving conditions.....I just got my latest analysis back.....90 days and 6150 miles on my oil and all test results were ideal.

[lino]

How do you think this guy's oil is doing:

zer...hange

[maiden94]

Thanks Paul. I appreciate the info. I had taken my Q in for a Check engine light that was on causing the car to shake at idle. Turned out to be a bad thermostat that was only reading 165 deg. instead of 210? or something like that they said. That's when they informed of the K&N situation. They told me that if the car reacts that way again it was probably the MAF sensor. After reading the posts, is it possible to clean the MAF sensor safely or just replace it. I've owned this car for 14 years and have 157,000 on it and have had no major problems til this blip. Great car!!

[Infinitiguy19]

Warm idle temp should be 174*-192*F Min and MAX, Anything above or below might be a cooling system problem.

To clean the MAF sensor just follow these steps: http://q45.org/maf.html.

If that fails then you can get a good used one or new one at a somewhat hefty price.