Help Repair Issues

[ravin22]

I have a 2005 Chev Avalanche and up until now it has been running great! The engine light is now on and I am getting no power, can't get above 20km?

 

We plugged it into a computer and got the following error codes

 

 

• 0313
  
• 137
  
• 171
  
• 300
  
• 1133
  
• 2771
  

I know (from internet research) that some of these codes are related to O2Sensors and injectors. I had the O2 sensors and spark plugs changed within the last year - are they bad already.

 

Since the vehicle has no power I am going to have to tow it to a shop so need to know what hte heck is wrong with it and roughly how much is it going to cost me to fix.

 

Thank-god it is the summer months and I can walk or bike to get around!!! I know nothing about vehicles so any help is appreciated!

 

P