Check Engine Light/VSC Light remain on

michalke · #1 (**permalink**) 03-11-2006, 10:47 AM

Have a 2006 Avalon XLS. After refueling a few weeks ago, Check Engine Light came on along with the VSC light. Dealer replaced O2 Sensor and VSC Sensor. After refueling, both lights came back on. Checked the gas cap and it was on tight. Less than 5,000 miles.

Any ideas on correcting this would be appreciated. 200 miles back to see the dealer.

John

jim256 · #2 (**permalink**) 03-11-2006, 02:40 PM

They are going to have to fix it for you, but make sure you don't top off the tank when you fill--stop refueling whenever the nozzle cuts off. Topping off can cause evaporative cannister and emissions warning issues. The VSC would seem unrelated, but on the Sequoia a while ago a defective gas cap could cause the VSC light.

mustang67408 · #3 (**permalink**) 03-11-2006, 02:56 PM

Quote:

Originally Posted by michalke

Have a 2006 Avalon XLS. After refueling a few weeks ago, Check Engine Light came on along with the VSC light. Dealer replaced O2 Sensor and VSC Sensor. After refueling, both lights came back on. Checked the gas cap and it was on tight. Less than 5,000 miles.

Any ideas on correcting this would be appreciated. 200 miles back to see the dealer.

John

Have any code to share with us? So we have a direction of things to look at.
When the check engine light comes on it disabels the VSc and thats probably why the VSC light is on.

michalke · #4 (**permalink**) 04-01-2006, 07:57 PM

Quote:

Originally Posted by jim256

They are going to have to fix it for you, but make sure you don't top off the tank when you fill--stop refueling whenever the nozzle cuts off. Topping off can cause evaporative cannister and emissions warning issues. The VSC would seem unrelated, but on the Sequoia a while ago a defective gas cap could cause the VSC light.

Thanks. The topping off may have been the issue. All warning lights are working after I disconected the battery and reset the computer. Have not had any further problems.

pservano · #5 (**permalink**) 04-08-2006, 07:57 PM

Quote:

Originally Posted by michalke

Thanks. The topping off may have been the issue. All warning lights are working after I disconected the battery and reset the computer. Have not had any further problems.

I have the same issue with my 2002 Avalon. I dropped it off to the dealership. Should have checked the site first. I'll find out Monday what the dealership did to fix the check engine light being illuminated.

pservano · #6 (**permalink**) 04-10-2006, 07:34 PM

FYI

Picked up my 2002 Toyota Avalon. Dealer replaced the NR1 fuel/air sensor, total cost $356.00 including labor. The sensor cost $204.00.

AlMuhairi · #7 (**permalink**) 04-19-2006, 03:19 AM

I have a 97 XLS and i had the problem of the engine light going off. I had to replace three O2 sensors, but it is still illuminated!! My mechanic told me that there is nothing wrong with the car, so just ignore the light. However, it is kind of annoying!! anyone have a soln?>

nhparrot · #8 (**permalink**) 04-19-2006, 04:45 AM

Quote:

Originally Posted by AlMuhairi

I have a 97 XLS and i had the problem of the engine light going off. I had to replace three O2 sensors, but it is still illuminated!! My mechanic told me that there is nothing wrong with the car, so just ignore the light. However, it is kind of annoying!! anyone have a soln?>

What code is triggering the MIL (engine light)?

AlMuhairi · #9 (**permalink**) 04-19-2006, 10:47 AM

It was saying O2 sensor, but all three were replaced!! I cant remember the code that came on...

mustang67408 · #10 (**permalink**) 04-19-2006, 04:23 PM

Quote:

Originally Posted by AlMuhairi

It was saying O2 sensor, but all three were replaced!! I cant remember the code that came on...

Just because a vehicle throws a code, dosnt mean to replace whatever it shows bad.
You have to diagnos the circuit. The ECU, wiring, control relay and 02 sensors are all in that circuit.
We need a code to help you more. Sometimes people miss interpret codes.
Most poeple when they see a p0171 replace the 02 sensor, when in actuality it MAF sensor related or low fuel pressure and sometimes a 02.
Please try to get someone to read the code so we may better help you

AlMuhairi · #11 (**permalink**) 04-19-2006, 07:15 PM

my O2 sensors were worn out and needed to be changed anyway, the guy who owned the car before me didnt give a crap about the car. I will try to run a diagnosis on it and get you the code thats going to show up.

kaluna69 · #12 (**permalink**) 04-19-2006, 08:26 PM

Quote:

Originally Posted by michalke

Have a 2006 Avalon XLS. After refueling a few weeks ago, Check Engine Light came on along with the VSC light. Dealer replaced O2 Sensor and VSC Sensor. After refueling, both lights came back on. Checked the gas cap and it was on tight. Less than 5,000 miles.

Any ideas on correcting this would be appreciated. 200 miles back to see the dealer.

John

vsc lightb

ChrisGo · #13 (**permalink**) 07-19-2006, 11:17 AM

I had this problem when I overfilled the gas. I disconnected the battery and the light went away. But the light came back on a week later. I have done this for a couple of weeks now. Is there any other way to reset. Thanks in advance.

mustang67408 · #14 (**permalink**) 07-19-2006, 11:29 AM

Quote:

Originally Posted by ChrisGo

I had this problem when I overfilled the gas. I disconnected the battery and the light went away. But the light came back on a week later. I have done this for a couple of weeks now. Is there any other way to reset. Thanks in advance.

What code is stored?????

ChrisGo · #15 (**permalink**) 07-20-2006, 12:56 PM

I don't know where a code would be stored at.