People who know how to work on vehicles.

[JOACH1M]

Ok, here is the situation. I put a K&N air intake on my 04 f150. I watch all the installation videos there are and it's all put together and on my truck. Now when I start the truck it starts and idles for 2-3 seconds and then dies...my little display thing says "low oil pressure"


I don't know whats up with it...need help.

[Dago]

Did you disconnect the mass airflow sensor and forget to plug it back in?

[Masherbrum]

Did you disconnect the mass airflow sensor and forget to plug it back in?

This.  Make every connection to it is securely/properly plugged in.

[Dimebag]

5.4L 3v = gonna have to be replaced sooner or later   

[Melvin]

Check your oil.

 

[pervert]

Take it off again and see if everything works, tbh the K&N filters are a load of expensive rubbish and if you have a MAF these filters are notorious for damaging the wire in side them. BHP gains some do some don't theres no really concrete proof I have seen rolling road tests that after fitting one of these filters the BHP goes down by a few BHP. Unless your running performance carbs or throttle bodies I wouldn't bother with a K&N filter tbh.

[CAP1]

Ok, here is the situation. I put a K&N air intake on my 04 f150. I watch all the installation videos there are and it's all put together and on my truck. Now when I start the truck it starts and idles for 2-3 seconds and then dies...my little display thing says "low oil pressure"


I don't know whats up with it...need help.

 you put too much oil on the filter. pull the mass airflow meter off, and clean it with massairflow cleaner.

 what happened, is that when you put too much oil on the filter, some of it gets pulled into the engine. it contaminates the heated element on the sensor, and totally screws the readings.

[pervert]

you put too much oil on the filter. pull the mass airflow meter off, and clean it with massairflow cleaner.

 what happened, is that when you put too much oil on the filter, some of it gets pulled into the engine. it contaminates the heated element on the sensor, and totally screws the readings.

This is true but a K&N filter also needs that oil to filter properly, and before you start trying to clean the MAF wire it is practically impossible to do and ever be right again. This is why an oiled filter does not suit this type of induction.

[JOACH1M]

Did you disconnect the mass airflow sensor and forget to plug it back in?

Every thing is plugged in, I triple checked.

you put too much oil on the filter. pull the mass airflow meter off, and clean it with massairflow cleaner.

 what happened, is that when you put too much oil on the filter, some of it gets pulled into the engine. it contaminates the heated element on the sensor, and totally screws the readings.

is there any other kind of cleaner that will work? Or just MAF cleaner.

And what would I clean when I pull the sensor out?

[pervert]

As you can see cleaning it with a q tip is a very delicate job, the results are hit and miss at best.

[JOACH1M]

I have no clue where that is at on the truck. The MAF sensor looked like a chip.

[CAP1]

This is true but a K&N filter also needs that oil to filter properly, and before you start trying to clean the MAF wire it is practically impossible to do and ever be right again. This is why an oiled filter does not suit this type of induction.

 no..you just have to go light on the oil. i ran(and still do) a k&n in my 5 liter. not the 012, but when i had my 89 stang. that drivetrain is in my fairmont now. never had a problem from the oil.

 i've seen plenty, where customers(you know the handyman type) put the filter in, and they just drench the dam thing in oil then they're lucky to make it to the shop. i clean the filter, the maf, re-oil the filter properly, and send em on their way.

 i should note i see most problems with dodges, mostly early 2000's and late 90's ones.

[CAP1]

the maf should be in the air tube. it should be held in with 4 torx screws. remove it, and you'll see what appears to be a small tube protruding into the housing. the heated element is in there. DO NOT TOUCH IT WITH ANYTHING, SUCH AS A Q-TIP. simply use maf cleaner(it's only about $5/can). wear safty glasses when spraying this stuff......spray the element, from about 6". it should only take a couple seconds. it'll dry out in mere seconds afterwards.

 don't forget to clean the air filter, and use less oil on it. also, when you clean that filter, you need to let it dry overnight before oiling.

[pervert]

I have no clue where that is at on the truck. The MAF sensor looked like a chip.

It will be on the induction tubing to the throttle body, the Mass Air Flow sensor works with usually a throttle position sensor to work out the amount for air coming into the engine this effects the fueling ie fuel to air ratio so any problem with these sensors is big trouble.

[JOACH1M]

Good news! I went and took the sensor off the tubing and realized I had it I backwards!!! LOL! It's running good now!


Thanks for the all the input guys!