Common problems

4x4Life

Junior Member
On my way home from work check engine light and vsc off light all came on, anyone know the most common causes of the check engine light? I have a 2001 sr5 with 157,000 miles changed the oil a 1000 miles ago
 
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COuld be any number of things. Any local auto parts store can scan the code for you and that will tell you where to look. Mine threw a code a few weeks ago and it was something to do with the fuel line. Turns out the gas cap was a little loose. Tightened it, reset the code and haven't seen it since.
 
P0420 Catalyst System Efficiency Below Threshold (Bank #1) is one of many "common" ones. Some codes also shut off your VSC/Trac to save power robbing functions in case the engine is struggling for power due to the original code. So now your code has turned into a safety issue with your vehicle having no stability control or traction in case of an emergency.

But there are hundreds, so you Have to get your system read. If you don't have one go to auto zone, they'll read for free except in Cali. You can also buy an inexpensive reader on ebay for about $15, shop around.

So let us know what code you get. Luck!
 
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