check engine VSC lights on
02-08-19, 06:10 AM
#1
Driver School Candidate
Thread Starter
check engine VSC lights on
2005 Lexus GX -- My check engine and VSC lights came on this morn. I fiddled with the gas cap. No luck. I know the gas cap is usually the culprit and first thing to check. But my gas cap is only 4 months old. Is there a way to identify if it is in fact the gas cap? Other than replacing it? I'm in upstate NY and cold/warm weather on and off and wonder if that could damage the cap?
Should i suck it up and just replace it to see?
Should i suck it up and just replace it to see?
Last edited by gshort; 02-08-19 at 06:15 AM.
02-08-19, 08:20 AM
#2
Lexus Test Driver
2005 Lexus GX -- My check engine and VSC lights came on this morn. I fiddled with the gas cap. No luck. I know the gas cap is usually the culprit and first thing to check. But my gas cap is only 4 months old. Is there a way to identify if it is in fact the gas cap? Other than replacing it? I'm in upstate NY and cold/warm weather on and off and wonder if that could damage the cap?
Should i suck it up and just replace it to see?
Should i suck it up and just replace it to see?
First find out what code(s) you have.
If you dont have a scanner, Autozone can check your codes for free.
02-08-19, 09:57 AM
#4
Driver School Candidate
Thread Starter
I checked all the vsv hoses and didn't see any lose or damaged. I realize it could be the VSV vacuum switching valve or air injection control circuit or even the ECM... but wanted to try the easy things before I brought it into Lexus and have $2k bill.
02-08-19, 10:23 AM
#5
Lexus Test Driver
Most likely its a stuck AIC valve.
Known problem for these.
Ive seen kits here for that problem but i personally have no experience with those.
02-08-19, 01:19 PM
#7
This is the kit I have for my 08 GX470 from Hewitt Tech. Easy to install.
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