Does anyone know where the barometric pressure sensor is on a Cadillac ATS 2015

Post moved from long-dead thread in Seville. VERY different vehicles. Which engine? Sub.

 

Sorry! It’s A 2015 ATS Turbo 2.0

 

Same thing happened to us. Our oil was changed and now it pulling a code P2227- barometric pressure sensor. We ordered the part on Amazon but now can’t find its location. Please help!! Stuck at the beach with no car that works properly is the worst.

Moved and edited from a long dead thread on a totally different vehicle. Sub.

 

A MAP or BARO sensor will be somewhere in the intake ducting or intake manifold itself.

Look at your car parts in the RockAuto online catalog and see if you can find the part by using the little INFO tabs for pictures.

MAP - (Manifold Absolute Pressure) -

2015 CADILLAC ATS 2.0L L4 Turbocharged Manifold Pressure (MAP) Sensor | Shop Now at RockAuto

Exhaust & Emission Parts and More for Your 2015 CADILLAC ATS at Reliably Low Prices. Fast Online Catalog. DIY-Easy. Your Choice of Quality. Full Manufacturer Warranty.

www.rockauto.com

 

I’ve already been there and still can’t seem to see its location. It seems to be a different location in every Cadillac.

 

Yes, many different possibilities - maybe near the throttlebody - the part that houses the accelerator butterfly - right at the intake end of the intake manifold.

 

We were right there at it and didn’t see it anywhere. Just hoping it isn’t underneath the fire wall.

 

Your 2.0T engine uses a multi-function sensor for mass airflow, intake air temperature, and barometric pressure. It is mounted in the air intake tube where it exits the air filter housing.

Be careful removing the connector or you will have a bigger issue with broken wires in the connector!

Rodger

 

Thank you so much. Looks like it must be on the air box… is the MAP sensor the same as the baro sensor? We must have gotten the wrong part.

 

You are welcome!

I believe the MAP sensor for a 2.0T is designed to read pressure post turbo so it is a different sensor and is located in the "boosted" air stream instead of at atmospheric pressure which is where the multifunction (including baro) sensor lives.

I believe the MAP sensor is located under the cover on top of the engine but you don't need to worry about this one if barometric pressure sensing is the issue.

Rodger

 

Please help again: We got home from the beach, car drove fine. However, now it’s dying on us again. We replaced the MAP sensor. Now it’s pulling 2 codes. When we give it gas, it does fine… but when we don’t, it dies.
The codes are: P2227, P0236, p1101

 

Codes : OBDII diagnostics. Trouble codes description for GM

Sensor circuit problems ...........

Any chance you have rodent damage to the engine wiring? Squirrels, rats, and mice WILL chew the insulation off of automobile wiring - just a shot in the dark.

.....or has anything been done to the air filter or intake air ducting system? Air intake blocked/obstructed ?

 

Please help again: We got home from the beach, car drove fine. However, now it’s dying on us again. We replaced the MAP sensor. Now it’s pulling 2 codes. When we give it gas, it does fine… but when we don’t, it dies.
The codes are: P2227, P0236, p1101

 

Your threads on essentially the same sensor circuit problems have been merged for continuity. See Posts 12 and 13.

 

We looked and that doesn’t seem to be an issue. It is almost like the engine isn’t getting any oxygen- like it’s a vaccine problem. We replaced the MAP.. but now it’s just throwing codes. We just don’t know where to start.

 

Hello. This is the husband. lol. I changed the cabin air filter several weeks ago. Mice have chewed on the filter. No other damage that I could see. Just checked the Mass air flow sensor near engine air filter. No corrosion on the wiring or chew marks

 

Any ideas on what could be causing these issues?

 

If you have mice chewing on things you are best to take it into a dealership and have them run a set of diagnostics on it. It could be a wiring harness was chewed on and a ground is no longer working properly.

Things like this are impossible to diagnose online without seeing the car in person.

 

It's on the left side or passenger side, towards the front side of the engine, it's small about 2 inches with one bolt holding it on, look down into the cracks and you'll spot it. It's probably dusty and hard to spot.

 

I have a 2014 caddillac ats and it will not accelerate, it'll crank and drive but will climb from 0 to 30 like it's pulling a mountain behind it. No power at all, it's like driving a single cylinder car. I checked the codes and it's showing Barometric Pressure Sensor and when I look online to find a replacement, it's showing up as a MAP Sensor so my question is, is there a different, did cadillac combine both into one Sensor or is the Barometric Sensor located somewhere else. I did find the MAP Sensor which looks identical to what pops up when I search for the Barometric Sensor.

 

Hey Williwslee134. I found the same thing in my car ( 2014 ) it’s died on my wife, I’m currently looking for one to change it out, would that fix the problem on it stalling? I took it to autozone and the code reads the Barometric pressure sensor is the culprit, funny part is, that on their screen, even tho it says that’s the problem, it also says ( item not required)

 

moving to ATS forum...