Stalling out

[justin ferreira]

I just installed short tube headers and new spark plugs on my 2012 Chevy Silverado with the 4,8. I still have my cats and co2 sensor but my engine light is on and I keep getting traction control warnings. It runs rough and won’t go past 20km then stalls out. Any suggestions 

[diyer2]

Really?

Have an auto store scan it for the codes.

 

:)

[Brian715]

Something not plugged in. Let us know what the codes are when you find out. 

[justin ferreira]

Getting code for co2 sensors, map sensor and misfire 

[davester]

Post the actual code numbers with their description, not your short descriptions of them.

[justin ferreira]

Every time I clear the codes I can drive for 20 miles and it happens again but it’s different codes every time

[davester]

still, write down the codes and post them, grouped by when you get them

[Colossus]

A few questions:

 - How many miles?

- What type of plugs did you put in?  Did you also replace the wires? 

- How old is the battery?

- Are you getting a flashing check engine light or just steady?

- Did the issues all start at the same time? 

[justin ferreira]

100,000 miles 

- al deco plugs

no wires 

-brand new battery 

-flashing engine light

-yes all at the same time

[Colossus]

Remove the plugs and check all of them to make sure they are ok.  Replace the wires.  We need to see what codes are showing the misfire for what cylinder(s) and then start swapping coils.