2007 tundra check engine lite on

You may have a simple vacuum leak. It can be a bad valve too? Get it checked before u throw good $ away. Good luck. PS I've seen this problem caused by a vacuum leak before.

The message usually means the engine has been run with the gas cap off, or the cap is leaking.
You may have to use a scanner or code reader to erase the code.
Check your owners manual for details.

probably yes, check sensors for faults

Yea VSC lite will come on when ever a check engine lite is On, the codes you mentioned are certainly a EVAP codes, make sure your gas cap is a factory and inspect seal surface and contac surface on filler neck for rust clean if any,also check all hoses going into air box reconect if necesary, (have your car been in any accident) if have access to a scan tool resest lite if lite comes back no other option take it to a dealer, check for warranty coverage on this systems.
good luck

replace the electric part of the ignition down on the steering colum ....u will have to drop the steering colum down but not totaly remove...fixed 2 s-10 trucks same year that way

it will run fine the air pump is for emmisions purposes only.if you have emmisions checks were you live then your going to want to fix it or you will fail the etst

Sounds like the fuel pressure regulator. Check to be sure your fuel pump is pumping gas up to the fuel rails. You can usually hear the fuel pump kick on at the gas cap. I would change the fuel filter while you're at it. Just to be sure there's no trash caught within the filter.

If you have to ask that question, then you're not qualified to do the repair. Take it to a mechanic.

I am not an expert on saturn so don't rate me on this unless it actually does some good. On an impact the car may trip your fuel pump. This is to keep fuel from being pumped from the gas tank to your engine to minimize a fire. There is a reset switch normally located in the rear wheel wells in the trunk of the car. You may have to move a trunk liner aside to see it. See if there is anything in your owner's manual about the Fuel Pumo Shut-off - or Resetting the Fuel pump or related data in the book.
Hope this helps. If not, please stop back as answer keep coming in
Thanks
Len

Check engine light on ? Have it check for DTC'S diagnostic trouble codes . New fuel pump ,new gas cap,because check lite comes., just replacing parts is not the way to fix car's ! Testing the fuel management system ,viewing scan data on a capable scan tool is. Your best bet take it to a qualified repair shop. What are the fuel trims at +- 10% Do you know what short an long term fuel trims are ? The computers ability to control fuel delivery . What's mass air flow sensor data parameters , coolant temp sensor ,are the O2 sensors switching correctly ,
mechanic now thinks it might be in the charcoll pollution canister??? this surging is driving me nuts ???????? You better find a real automotive technician .
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