Quick question in which i hope someone can help me out with. where is the IAT sensor located. Now i’ve seen some posts declaring its part of the MAF, is this the case? I have seen the part separately on advanced auto and just images in general. if it is an individual sensor please help me find the location. 2007 Jaguar S Type R. Many thanks!!!!

 

It is a sensor with in the MAF sensor .
the forced induction variants (eg supercharged / turbo)
do have a second sensor called IAT2 .
This measures the charge (boosted) air temp between the turbo/ blower and the intake port .
but all s-types have the MAF IAT sensor .

 

Then the 2 codes i’m receiving #1 P0102 Mass or Volume Airflow A Circut Low and #2 P0113 Intake Air Temperature Sensor 1 Circuit high. Since it says sensor 1 could I presume that it is in correlation with the MAF? IAT2 would be the other sensor number 2? Or not exactly. Also what does high and low mean. Too much or too little connection? Engine is running very poorly.

 

I guess my question is would a scanner recognize exactly which IAT is malfunctioning considering it should have the second IAT being a supercharged vehicle as you stated. Thanks

 

IAT2 would never flag those codes.

 

With a high-end scanner like icarsoft, it will read the second iat, but it sounds like your maf is faulty or dirty....the ecm is expecting a certain airflow at a certain throttle position and not getting it....iat2 will throw an excessive temp code .....trying cleaning with maf sensor cleaner....make sure your air cleaner is good....check the maf plug and wires....if you replace the maf sensor make sure you use oem parts.....these cars are finicky about after market fuel and emissions parts.....usually denso is the make

 

Thank you for the replies. So I did just replace the MAF/IAT sensor yesterday. It was either the denso or car quest will let you guys know exactly which, would car quest be okay or OEM? I turned her over and it started great for once then once adjusted a couple seconds later ran poorly again. You stated check the air cleaner, and that was actually my 3rd code out of the only 3 i received. P2676 - Air Cleaner Inlet Control Circuit Low. What i need to do is plug the scanner back in and see if my mass issue is fixed. As well as check my grounds and connections like you said. What is the Air cleaner inlet/where is it located and what do you recommend i do. Sorry if asking too much there really isn’t too much on these specific issues. i have done my research trust me i just got the car not running has actually been one of my dream cars that was in range that i saved for with 63k on the dash and she is almost pristine. i’m 21 and learning everything i can about her and would love to see this car run. Thanks again.

 

From personal experience, i tried using a bosch o2 sensor once with bad results and an autozone maf with same results as you...good at first then back to faulty....i recommend using oem engine management parts....did you check your air filter for being plugged up...if you do not know when it was replaced....change it...the intake air comes in through the scoop above the grill...take that big intake hose off and make sure it is clear and not collapsed ...access it by removing the plastic radiator cover by removing 4 plastic pins you will see....after you get that off you can remove the airbox by taking out one bolt and looking it over

 

I actually purchased the car that has an aftermarket cold air intake installed with a spot for the MAF. looks as if it is specially designed for the car. Which I thought could be another issue but I’m sure this after market intake is made for it. still stumped on the air cleaner inlet control issue and hope to get a response. So other than the stock air filter being removed is there anywhere else that has air flow sensors or filters to check. Hoping i get my reply from previous post. Tomorrow I will be working on her again and will post with updates. Stand by and thank you all for your time.

 

On the original airbox there is a wide open throttle flap that opens electronically when max throttle is used....you do not have this anymore, but there should still be a soleniod plugged in because the ecm still needs to see it....look for it, or a plug in with no where to go.....i still think you have a maf problem....can you post a couple photos of your intake setup

 

Agreed , I have had problems with non genuine sensors , so for me it’s genuine only !
as for the wide open throttle flap .
Mine has not had the solenoid plugged in since way before I bought my car .
sure it has this code but no I’ll effects.

 

I will be posting pictures momentarily of the air setup. Now as for the code i’m receiving is that a direct effect of having a cold air intake installed? Is the air cleaner inlet another name for the stock air filter setup? or is that a different part.. What do i do... i’m going to recheck the code for my mass airflow and intake air temp here now as well and see if they cleared up because I did replace the sensor with a car quest which i hope is OEM. As you read those were the only 3 codes i received for the car. Didn’t get any misfire readings or anything. Car is running sluggish almost stalling there’s a lag when gas is pressed. She’s gasping for something and not getting it. Pictures soon.

 

I doubt carquest is oem... probably standard motor or maybe wells....you should have denso oem on an 07 str ....look at your old one.....i have an 06 str....all denso....the code is referring to the airbox flap solenoid maybe.,..if so, datsports says it does not affect driveability....just a code...is your cone filter clean .....cone filters are usually oiled...maybe oil has contaminated your maf....clean the maf and try without the filter on....make sure intake piping is not oily

 

It’s a brand new MAF old filter pictures coming now. As for denso it was actually a car quest that was on it before bought the same sensor coincidentally... and i know csr was running bad for previous owner so not sure..

 

Brand new MAF/IAT unplugged. Old filter so don’t believe oil is contaminating.

General picture for area pointers.

Air intake seems to be designed for vehicle.

Found this unplugged.. any ideas?

Same unplugged better pic for leads

General setup.

 

It's some sort of hot air intake not made by Jaguar.

 

Newest update plugged in the OBD2 scanner to retrieve new results. The codes for my MAF/IAT are gone which makes me assume the sensor i purchased carquest or oem or not is working. However I still have the code P2676 Air Cleaner Inlet Control circuit low. Still have no idea what this is. As well as receiving a code for P1147 Manufacture specific code. Last but not least a code for every single cylinder misfire, all 8 of them and the random/multiple cylinder code. Any ideas? They can’t all be faulty considering i changed 1.... i’m going to pull them and perform and compression test. I know the pressure should be above 100 but what is healthy for the 07/08 STR’s. Still need most help with the P2676 code. Is it important will it affect performance/should i worry about it. Thanks

 

P1147 does not exist....

 

You need to read post 10,11&13 again , you seem to be skipping over them m

Also take back your crap MAF and get a genuine Denso
They are far too important to skimp on .

 

didnt skimp was just all they had at $90. but okay i’ll look for a denso.