Check Engine, VSC and Traction Control lights turned on?

Hi,

What I would start with would be to have the computer scanned for diagnostic trouble codes. Since the check engine light is on, there will be codes stored.

Now, did all of the lights turn on at the same time? Are there any other symptoms you have noticed? Is the ABS light on?

I ask because if there is a failure with one of the wheel speed sensors, it can turn on all the lights you mentioned.

Let me know. Also, if you have already had the computer scanned, let me know what codes were found. If you haven't, it should be done. Often times a parts store will do it free of charge.

Take care and let me know as much as you can that may help me diagnose the issue.

Joe

I went to AutoZone and they scanned the codes. P2195 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) came up and so did C1201 (Brake Boost Sensor Circuit Range/Performance.

The ABS light did not come on. The check engine light, VSC light and Traction Control symbol all came on at the same time. The VSC light is continually blinking.

The engine does not idle smoothly. It sounds like it is huffing at times and power fluctuates some.

Thanks

Hi,

I need to know if you have a 1.8L or a 2.4L engine for the oxygen sensor code. I did some research and found that the stability control and traction control circuits may be in a fail-safe mode due to the engine code (O2 sensors).

Let me know what engine you have.

Take care,

Joe

I have the 1.8 liter engine.
Thank you

Hi,

I attached the info from the C1201. I highlighted the area of interest. The P2195 falls into the category of an Engine System Malfunction, so the oxygen sensor code is what is likely causing the issue.

If the sensor is frozen lean, chances are it is bad. However, before you replace it, have the computer scanned to see if the lights go out. If they do and then come back on, suspect the sensor needs to be replaced. It could also be a wiring issue, but chances are it is the sensor itself.

If you want to remove and inspect the sensor, here is a link that explains how to test one:

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor

Let me know your thoughts and which way would you like to go forward.

Take care,

Joe

See pics below.

How do I have the computer scanned and do you know where the sensor is located?
Thanks

Hi,

The sensor is located between the engine and firewall right before the catalytic converter. To access the sensor will be somewhat of a nightmare because several things need removing. See pic 1 for location.

The remaining pictures are the removal procedures. Note that if there is a step you need help with, let me know and I'll get you the specifics.

As far as the scan, if you remove the sensor and use the link I attached above, you can skip the scan until we confirm if the sensor is good or bad.

Let me know.

Joe

See pics below.