Stalling at idle

SFOGES

MEMBER
2013 HYUNDAI SONATA
2.4L
4 CYL
2WD
124,000 MILES

Hi, car won’t stay running, stalls at idle. Replaced MAP sensor, no help. Was wondering what you might think it is, do not have a code for it because I can’t drive it anywhere to get it scanned. Trying to avoid tie charges and mechanics charges.
Where is the EGR valve located? Could that be the problem?
Thanks for your help!

11 Replies

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

This could be a problem with your vehicle's Electronic Throttle Control System (ETCS). In the diagrams down below I have included the description of the ETCS. I really need to have the Direct Trouble Code (DTC) number to look up the correct diagnostic information for you. I would inspect the throttle position sensor which is located on the throttle pedal and inspect the connector and wires for proper operation and that either are damaged or frayed insulation. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

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Tuesday, August 13th, 2019 AT 3:44 AM

SFOGES

MEMBER
7 POSTS

Thanks for getting back so quickly!
So I inspected ETCS and did not see any bad connections or frayed wires.
I’m working on getting a code reader.
Can you tell me where the EGR valve is located maybe some other sensors or valves that may be the culprit? So I can inspect those connections or maybe clean them if doing that might help.

Thanks again!

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Tuesday, August 13th, 2019 AT 8:09 AM

SFOGES

MEMBER
7 POSTS

Hi again, so I tracked down a code reader and it read.
P0014, which it says is the cam shaft position sensor (is that correct?)
It also so read:
P0106-which is the MAP sensor, but I already replaced that.
P0017
P0107
P0113
and P0172. But am I correct in thinking that all the other codes could be because of the Cam shaft sensor?Which actually was on the reading twice.

Thank you for your help!

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Tuesday, August 13th, 2019 AT 10:13 AM

SFOGES

MEMBER
7 POSTS

Also, can you tell me exactly where the CSPS is located? Is it on the right front side of the engine, held on by 1 10mm bolt? Also the location of any other sensors I should look at.
What’s the one on the left front side of the engine?

Thanks!

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Tuesday, August 13th, 2019 AT 10:20 AM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

In the diagrams down below I have included all the factory diagnostic troubleshooting guides for all the Direct Trouble Codes (DTC)(s) that you listed earlier. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

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Tuesday, August 13th, 2019 AT 2:34 PM

SFOGES

MEMBER
7 POSTS

Thank you, will go through it tomorrow, in the mean time could you tell me were on the engine all these sensors are.
I’m pretty sure the OCV is on the left/front side if look at the engine, but I have no idea where the filter is could tell me that, and please be very specific with all the locations of things.
1. Where is the OCV filter located?
2. Where is the AIT sensor located?
3. Where is the EGR valve located? I still don’t know.
4. Also directly on the back of the engine from the sensor which I think is the OCV there is another sensor that looks the same as the one on the front, what is that sensor!
And please I’m not as technical as you but I’m trying to figure it out. But on the locations and what they are, also where the filter is? Explain it like I’m a 5 year old, lol, I’d really appreciate it!
And thanks again!

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Tuesday, August 13th, 2019 AT 4:54 PM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

Okay, so just for clarification, the Continuous Variable Valve Timing (CVVT) system takes the place of the Exhaust Gas Re circulation (EGR) system. The CVVT system is so precise that the EGR system is no longer needed. In the diagrams down below I have included a diagram of the engine management sensors and there locations along with a callout for there names as well. I have also included closeup diagrams of the sensors that you requested. This is as basic as I can keep things, so please go through the guides and get back to us if you should any more questions with the locations of things for your vehicle and how things are progressing.

Thanks,
Alex
2CarPros

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Wednesday, August 14th, 2019 AT 1:22 AM

SFOGES

MEMBER
7 POSTS

Thank you, very very helpful!
Is there not a filter for the OCV?

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Wednesday, August 14th, 2019 AT 7:29 AM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

I am not seeing anything in the guide that we use for your vehicle about it. I have sent you the description of the OCV operation in the last reply I sent. I did stumble across these specifications for your vehicle's engine management system that I thought might be helpful for you for reference. I have included them in the diagrams down below. Please go through them and keep us informed.

Thanks,
Alex
2CarPros

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Wednesday, August 14th, 2019 AT 1:05 PM

SFOGES

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Thank you!

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Wednesday, August 14th, 2019 AT 1:09 PM

KEN L

MASTER CERTIFIED MECHANIC
48,289 POSTS

If I can add my 2 cents. have you serviced the throttle bore? here is a guide to help:

https://www.2carpros.com/articles/throttle-actuator-service

Please run down this guide and report back.

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Saturday, August 17th, 2019 AT 12:05 PM