air charge temp sensor

I am trying to check a cel on a friends 96 Tacoma someone installed a K&N air induction system on the truck before my friend got the truck the sensor is just dangling in the truck I cant find anywhere on the K&N to plug it in and I cant be sure that its even faulty with out testing it properly but its throwing a code

 

Wholly shit you dont mean mass air flow sensor do you? Thats the only sensor that would be part of the intake! When installing a k&n setup the section that houses that sensor is kept and.simply incorporates into the new intake...

Is a picture possible? I wanna see this?

 

no the mass is close to the filter this is the air charge temp sensor often confused by auto parts store personnel
as the coolant temp sensor i will see about the picture Ill sign in on my phone

 

on my phone it says i dont have any conversations send me a message like my spark plugs or something

 

What's the code that it's throwing?

 

Hu? Weird, neither of my trucks have anything sensor or electronic wise on or in the intake besides the MAF of course. Wonder if it was an early model thing. Is it a distributor motor? Dont see why that would matter anyways... you sure it belongs in the intake?

 

rogue sensor

 

I can't remember the code number p01714 I think anyway the code says it's thus sensor and the dang thing is right there as you can see it looks like it would have been in the tube of the old system or in the breather box maybe?

 

Hu, strange...youre right though it does certainly look like it would be part of the intake. Unless that intake isnt exactly for that make/model id be suprised if k&n left that part out of their system. If that thing was part of the intake originally and that k&n is the right one for the truck k&n wouldnt have just letf that out or "forgot" about it...someone will recognize that thing and know whats up! Ive never seen it before though.

 

Thanks bry838 the wires connected to this are attached to the frame with a clip so it only has about 8 inches of reach it would have inserted underneath the old system do you know what would have been right there in the front? I think the breather box I'm having a hard time finding anything on 1st gen trucks as far as pics or posts about charge sensor or even what the old system looked like I have bad idol poor gas mil. all symptoms of a faulty charge temp sensor. from what I have figured out this tells the O2 sensor how much fuel to pump and if its bad you get too much fuel and carbon buildup. I took the sensor and stuck it in the filter, pulled the pos. cable drove about 2 miles and the cel came back on I have looked every where on this K&N if it wasn't needed they would have told us how to bypass it. I'm thinking a noobtard installed it and didn't bypass it you think contacting them would help solve it?

 

do you have the 3.4 V6 or the 2.7 i4? I didn't see this mentioned is why I ask

 

So where does the wires go after the clip on the frame?

That piece youre holding in hand is that just a lil protective deal for the actual sensor and then would the sensor still be connected to the wires with that nipple lookin thing off and in your hand?

 

Just drill a hole in the black adapter pipe. Once the hole is drilled use a rubber grommet and stick the sensor into the grommet and your fixed.

 

The sensor in your picture is the Intake Air Temperature (IAT) sensor. It originally was in the upper half of the air cleaner.

I can't find any P01714 code. Maybe you mean P0171 System too Lean (Fuel Trim). So I guess you're saying because the IAT sensor is reading the temperature under the hood rather than the actual air going into the engine, it's throwing the computer off. The computer thinks the air going into the engine is hotter (and less dense) than it actually is, so the computer is putting less fuel into the engine than it should be, thus the P0171 code.

Anyway, try to find somewhere to install the IAT sensor in the intake and see if the code goes away. Better yet get rid of that silly modified intake and put the original filter and intake back on!

 

So on early models, was the IAT separate from the MAF unit? My trucks dont have that, im guessing they incorporate the two into a single unit in later years?

 

Yes, separate units.

This thread on another forum explains it. 5-wire connector to MAF on 98-04 have IAT sensor built in. 3-wire MAF on 95-97 have separate IAT sensor.

The IAT sensor on earlier Tacomas was used on 10 other models. See 89424-12010.

 

Do this.

P0171 is air getting in to the engine before it reaches the 02 sensor, like a vacuum leak, it has nothing to do with the IAT.
With the IAT just dangling outside of the air filter, the temp differential between intake airflow and underhood temps is not enough to set off any code. You will just get some shitty fuel economy because the computer doesn't know exactly what the intake airflow temp is. Still the difference is so minimal it makes little to no difference.

Do what wht95scort says and fix the problem.

 

Yeah, I have a K&N setup as well that came with the truck and the IAT was put right behind the MAF which didn't have a very good cut out or seal properly. I sealed it and now have the sensor sitting next to the filter. I want to build a new airbox around the cone filter or something, maybe find another stock airbox. Don't know yet. If the sensor is next to the filter it's reading exactly what is going into the engine just like the original setup would.

 

Good morning fellas. interesting conversation while i wasn't paying attention. I am going to put some more pics on here in a bit I have taken the cold air intake off cleaned the throttle body and the mass air. this sensor, when put in its proper spot, only has 6 in of play so, what ever was attached directly to the original air intake in the side of the truck, this sensor was stuck up its ass cuz there is not enough play for it to go anywhere else. I saw a you tube video on how to test this sensor so that's next. I would love to poke a hole in the plastic tube but its chrome (my favorite color) that was my first thought, but im afraid i will jack up something. could a person poke that sucker thru the rubber fittings that join all the pieces together ? im thinking.... yes. if a rubber grommet will do why not right into rubber? all that needs to happen is air inside that tube needs to flow over it right? also Im going to respectfully disagree with CD20H there is a huge difference. it was foolishly plugged into this nipple thing. i will show you in a min what i mean, anyway, its a vacuum it is in a plastic box that is attached directly to the air filter before the mass air . so when it was" taped" in there i was getting 3 error codes and it was stalling out at stops and low idol I would have to turn off the ac at a red light after i took it out of there i put it right into the air filter, I lost all those symptoms except for poor gas mileage and it idols rough. also i was wrong about the manufacturer of the cold air its not K&N its a aem I think i cant find the stinking pics i took i will have to go take them again sorry be back soon. Thanks for helping me i really appreciate it!!!