2 Questions: Air Temp sensor in intake and timing chain

[Luke]

Ok, after reading that "free timing advance kit" thread I decided it would go out and check out what they were talking about. Well When I bought this car, the person before me had already installed this Injen Intake. I spent a while looking up and down my intake over and over, and I couldn't find this air temp sensor everyone is talking about. The only sensor/plug to be found on the intake is the MAFS. Could anyone tell me what I should be looking for? I did a search but I couldn't find an exact location on where it is, in relation to my intake that is ( i have no idea what the stock one looks like). I'm wondering if the person that put this intake in, un plugged this sensor and tied it up somewhere, but i looked around for somethign like that and didn't see it either. i don't have the cold air extension on my intake also. My car doesn't always seem to run it's greatest too, so i wonder if that could be a problem.

My 2nd question is about my timing chain. While my car is at idle, i can hear a tick/tock noise(it's noticeable and not normal) inside which I believe is the timing chain. It only does this at idle and when i rev the engine it stops. Does this mean the chain is loose? If so, what do i need to do to fix this, and is it a difficult job. I heard changing the timing chain itself is pretty hard. I will be working on my water pump soon, so id like to check this problem out while im at it. Is there just a tensioner that i could adjust/replace to fix it? I also heard about some of the guides making noise and you can jsut remove them ( what does it sound like )

Whew, sorry for the long thread, thanks

[MaineExport]

The IAT sensor is located in the airbox on the s14. The wiring comes from the same bundle as the MAFS. It should split off at a small bracket just before the MAFS and the filter. It should be right there... just before the filter.

I don't think it is your timing chain... more likely it is the timing chain guide.... or crappy valve lifters. The timing chain guide is the usual culpret, it gets loose and needs to be removed.

[Luke]

Ok, so the s13's don't have the IAT sensor?

And where would I be able to get access to the timing chain guide? Could i just take off the valve cover?

[nismofan14]

Well as for the noise i am with maine on that one. And for the intake air temp sensor, it is a little plastic peice that branches of the MAFS harness so it cant be that far away. My chiltons manual says that it is on a s13 and i think it is but i could be wrong. But anywho that is what you should be lookin for.

[90SXSE KA24ET DREAMS]

okay i need to bring this thread back to life.... I have just installed a lower mileage ka24e into my s13 and i can't seem to get it start or run right longer than 5 seconds. I have no air intake temp sensor.. I have do got it on order and it'll be here saturday.

Can any of you guys explain to me what this sensor does? and once I get mine and plug it in will my problems be fixed??

thank you

[Iamjohnhayes]

check your mafs because i was being an idiot one day and tried to start my car with the intake disconnected and it wouldn't run for more than a few seconds. i assumed it to be that no air was going through the mafs becuase right after i reattached the intake to the throttle body it started right up and ran fine.

[90SXSE KA24ET DREAMS]

okay listen to me real goodddd.. my mafs is brand freaking new... my intake tube is all connected and no vacuum leaks.. it's not my problem. I been telling everyone over and over again my mafs is brand freaking new that which i spent a lot of money for.

[onosqv]

well listen to me realllll goooodddd. If you searched, which I'm sure you didn't because I asked this question a month ago, you will know your answer.

And since I don't like the tone of your thread the way I read it.

1) Click search2) type in "ait sensor" w/o the quotes3) click on the FIRST link that returns4) read it5) next time, don't be rude to ppl who are trying to help you

Then you will learn your ait has nothing to do w/ your car not starting. Have you done the basic checks? i.e. timing, fuel, ignition, etc. Do you have an FSM? have you gone through the procedure in FSM?

Have you looked at the threads about cars not running/starting? There is a certain # of things you are suppose to check for. This information was also covered in detail in several threads in the Online Mechanic & Tech section.

And the other posters don't read all your threads and know all your problems, the world doesn't revolve around you - how would the other poster know that you MAF is "brand freaking new"??? We refer to the thread at hand... and will refer to other threads if given reference to them.

[90SXSE KA24ET DREAMS]

okay well searching is not helping me for this problem i have already looked. please just listen. have found the air intake temp senosr has nothing to do with starting but what i was trying to find out when i drove my car without the ait someone told me it killed my fuel pump probably and o2 sensor. well i replaced the both of those and i got nothing.

checked the ecu for codes 100 times and all i get is code 55.

i have replaced...

idle air control valvenew mafsnew plugsnew capdifferent fuel pumpreplaced all the relays in the relay boxchecked for timing- was in check all goodi'm getting fueli cleaned out my throttle bodyi changed the coili have replaced my leaky injectorsi have charged my battery to proper voltsi have checked grounds, and ecu plug

didn't replace my o2 sesnor because i'm guessing its good since the ecu didn't show a code for it.

so what can you make of this???

anything??

know what i should try doing to get it running again.

last week i took the car out and it drove and ran fine.. next day and as of today i can't get it to run again.

[onosqv]

I'm guessing you posted this info into a new thread in the mechanic section?

So you did absolutely nothing different... just stopped working all of a sudden?

Does it crank?

Does it start & die?

Does it just not do anything?

What exactly are you doing to check your timing?

Of course, this should probably be all in its own thread where a more qualified person can answer your questions on here (since it doesn't relate to air temp sensor anymore).

have found the air intake temp senosr has nothing to do with starting but what i was trying to find out when i drove my car without the ait someone told me it killed my fuel pump probably and o2 sensor.

A lot of guys run w/o the ait when they upgrade to a lower end cold air intake which doesn't have a plug for it. Some have it cut off, some have it hanging.

I'm suprised you don't have a Check Engine Light from not having the AIT though... your ecu is fine?

Again, this is probably discussion for another thread.

[90SXSE KA24ET DREAMS]

okay this is what my car does....

it cranks, sometimes starts or sometimes it just sits there and cranks and cranks.

the times it does start it'll start and quicky shut off without even showing the rpm's

and then sometimes when it starts i'll run for a 1 second and then the idle will show at like 200rpm and stall

and then also sometimes when it'll start the idle shoots up to 3,000rpm and really fast drops and stalls

and before sometimes when it did that the idle will catch it selfs and idle at 1,000rpm and it'll feel smooth for like 5 or 10 seconds and then stall out

and if i keep my foot on the gas it'll try to keep running but then eventally it'll stall even with foot on the gas.

i don't have my check engine light wired up or its broken or something, the ecu i took it out and open up the case and i did not see or smell anything burnt/fired, and i checked the ecu codes about 100 times and all it gives me is code 55.

[90SXSE KA24ET DREAMS]

and also i did have the timing at 20 when the car did run and when i was driving it for about a week and then the next day i have been having all the problems i have listed above.

so it should be still in time.. I had it timed correcty when i was driving the car fine without any problems about a week ago.

I can't really check the timing now again becasue i can't get the car to run.

[Ni2s4s0aSnX]

Yeah, it's inside the airbox on the stock intake. When I replaced my stock airbox I just drilled a hole in the tube and stuck it there. It's just a wire with a little thing on the end of it.

[90SXSE KA24ET DREAMS]

Yeah, it's inside the airbox on the stock intake. When I replaced my stock airbox I just drilled a hole in the tube and stuck it there. It's just a wire with a little thing on the end of it.

yeah i already know that but can you shine some light on me why my car is acting soo messed up.

i'm sonn gonna say **** it and sell it if i can't get it fixed by the 7th!

[90SXSE KA24ET DREAMS]

everyone... today i found out that the car was not at top dead center so i had a guy across that street from me who works on car to get it at tod dead center for and he told me this is will probaby get it to start and run. well after he did it for me... it did not start and run, still doing the same ****.

also i have tried a different ECU today and no go.

someone what could be wrong with my car?

[streetracer]

Did u check the little black sensor that is hooked to the air intake.i think it is called iddle control sensor. That could your problem i know that it will make your car idle like crap if it starts to go bad may be it died on your engine.I could be wrong on that since it looks like u have replaced it.You might have it set to low for the car to idle correct thats if the sensor is adjust able.