Hi guys I'm new here and I am out of luck. I have a Mazda cx7 turbo 2.3 with 120k miles that I just bought. When I start the car up it idles at around 600 rpm and occasionally dies. I also get a light rattling noise from the engine when I rev it. Also it seems to be surging a little when the rpm is low before it dies. Any insight would be greatly appreciated!

 

I should also add that I got p2088 as an active code after reving it for 5 minutes. It went away after I shut the car off. I also got pending codes for p0126 p0012 and p506.

 

any update on this? Having the exact same problem w my cx7. So far have replaced an upstream o2 sensor and fuel rail sensor but can’t seem to get it right.