Focus Fanatics - View Single Post - ZX5 engine stumble when stopped, help!
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Old 09-27-2011, 05:30 PM   #1
Focus Enthusiast
Join Date: Jul 2006
Fan#: 37417
Location: Harrisburg, PA
What I Drive: 2003 Yellow ZX5

Posts: 85
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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

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