ZX5 engine stumble when stopped, help!
Recently installed an AEM SRI on our 03 ZX5 zetec auto, shortly thereafter i noticed the car would idle rough and somewhat stumble when I was stopped at a light.
Not sure what it might be, but plugs and coil look fine and there are no problems other wise
Also other then the intake the car is stock
I had also be recommended to replace the DPFE sensor, as i might have hit it and damaged it while installing the intake? not sure but it is in the general area
Not sure if there might be a problem with the EGR, do they seem to have problems getting clogged and not flowing enough?
Thanks for the help