K&N intake problems ?

8383 Views 12 Replies 5 Participants Last post by Derek_r, Jun 14, 2016

Derek_r

Discussion Starter · Jun 12, 2016

I installed my K&N cold air intake yesterday, so far I've noticed the truck does not want to go into the 4 cyclender mode near as easy. And my fuel mileage has dropped. I also didn't unhook the negative battery terminal when I did the install which would reset computer, maybe this is why, Perhaps it will adjust.?

Only other mod on the truck is a flow master outlaw muffler

Anyone else have this issue?. Thanks !

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Nightshade

· #2 · Jun 12, 2016

Derek_r said:
I installed my K&N cold air intake yesterday, so far I've noticed the truck does not want to go into the 4 cyclender mode near as easy. And my fuel mileage has dropped. I also didn't unhook the negative battery terminal when I did the install which would reset computer, maybe this is why, Perhaps it will adjust.?

Only other mod on the truck is a flow master outlaw muffler

Anyone else have this issue?. Thanks !

Shouldn't have too disconnect the battery for a CAI install. But did you remember to plug the sensor back in before starting the car back up? Starting it up without the IAT plugged in would throw a code quick...

I would think that a better flowing intake would allow the engine to go into MDS quicker...

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Derek_r

Discussion Starter · #3 · Jun 13, 2016

It seems to be working a bit better now, the one thing I did notice is with the stock intake manifold the mass airflow sensor locks and in a certain direction

With the Cold air intake kit you can rotate this mass airflow sensor in any direction I'm not sure if it would read differently if it's not facing the Air flow correctly?

I just know with the stock set up it rotates in and will only lock in so that the incoming air has to run by the bottom loop of the sensor if that makes sense ?

I might call K &N just to get their opinion

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Stackin

· #4 · Jun 13, 2016

I would definitely keep the orientation the same way as it was on the stock airbox. MAF sensors are extremely finnicky, PITA at times

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TooByFoor

· #5 · Jun 13, 2016

It takes more force than you think to get that sensor seated all the way. I read several stories of people breaking theirs during install, and I can see why. And like Stackin said, do make sure it's oriented the same way.

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Derek_r

Discussion Starter · #6 · Jun 13, 2016

So I spoke with and applications engineer from K&N.

He said unhooking the negative battery terminal is more from a safety standpoint, but it also makes the computer really learn which would help. The computer will just eventually

Also the sensor in the intake is not a mass air flow but a temp sensor only?

But it is important to instal it like factory where the air would travel through the loop of the sensor ( not in the instructions ) and it's easy to put it in and have it any which Way, whereas from the factory it locks in only one way

Just a heads up

thanks for the comments Gents !

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Stackin

· #7 · Jun 13, 2016

Hmm... so with that being the iat sensor, I presume the MAF is on the throttle body itself ? Someone correct me if I'm wrong here please

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Derek_r

Discussion Starter · #8 · Jun 13, 2016

Stackin said:
Hmm... so with that being the iat sensor, I presume the MAF is on the throttle body itself ? Someone correct me if I'm wrong here please

I would like to know as well , anyone ?

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Mattcalgary

· #9 · Jun 13, 2016

There is no mass air flow sensor it's a speed density system. Only 6.2l come with mass air flow sensors

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Nightshade

· #10 · Jun 14, 2016

Derek_r said:
It seems to be working a bit better now, the one thing I did notice is with the stock intake manifold the mass airflow sensor locks and in a certain direction

With the Cold air intake kit you can rotate this mass airflow sensor in any direction I'm not sure if it would read differently if it's not facing the Air flow correctly?

I just know with the stock set up it rotates in and will only lock in so that the incoming air has to run by the bottom loop of the sensor if that makes sense ?

I might call K &N just to get their opinion

It is just a temperature sensor.. it being rotated may change the temperatures read by a small amount, but would not keep MDS from being engaged.

The truck will stop going into MDS if there is an engine code (have experienced even a pending engine code to cause MDS to stop on my old 2008 daytona)..

remember on our trucks.. ECO doesn't mean MDS is engaged.. there are a couple of conditions that cause the eco light to come on.. and even with MDS not being engaged, it's possible to see some pretty good mileage.. (noticed MDS is really difficult to get to come on at 130-140km/h.. not that I drive that fast of course.

)

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Derek_r

Discussion Starter · #11 · Jun 14, 2016

Nightshade said:
Derek_r said:

It seems to be working a bit better now, the one thing I did notice is with the stock intake manifold the mass airflow sensor locks and in a certain direction

With the Cold air intake kit you can rotate this mass airflow sensor in any direction I'm not sure if it would read differently if it's not facing the Air flow correctly?

I just know with the stock set up it rotates in and will only lock in so that the incoming air has to run by the bottom loop of the sensor if that makes sense ?

I might call K &N just to get their opinion

Click to expand...

It is just a temperature sensor.. it being rotated may change the temperatures read by a small amount, but would not keep MDS from being engaged.

The truck will stop going into MDS if there is an engine code (have experienced even a pending engine code to cause MDS to stop on my old 2008 daytona)..

remember on our trucks.. ECO doesn't mean MDS is engaged.. there are a couple of conditions that cause the eco light to come on.. and even with MDS not being engaged, it's possible to see some pretty good mileage.. (noticed MDS is really difficult to get to come on at 130-140km/h.. not that I drive that fast of course.

)

That's good to know!

Thanks for answering.

It seems to be back to normal now at this point as I've got to take the truck out on the highway and played around with it in town. I would say there has probably been a slight gas mileage increase. Driving at around the 90 km/ Hr

But it does sound awesome when you floor it along with the outlaw muffler ! So mileage decrease now , lol

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