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Old 09-27-2013, 11:53 AM   #1
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Join Date: Feb 2013
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What I Drive: 2002 Forest Green ZX3

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Idle off/runs spotty

Hello Focus Enthusiasts,
I have a 2002 Focus ZX3 2.0L DOHC Zetec motor. I believe its the original motor not 100% sure. anyways. I have a few bolt ons: CAI, MSD coil, 2.5" intake Cherry bomb glass packs, 2.5" straight pipe no tip, C-F-M 8.5"mm wires, OE platinum plugs. For the last year and a half the idle on my zetec has little by little starting to get rough. When start my car the idle seems to be correct until the engine warms up. Once the motor is warmed up enough it sounds like its sputtering. Not only is the idle off but I can usually smell how rich the fuel is getting burnt off, I recently had my car smogged, and could have sworn it would not pass. The auto shop changed out my gas tank cap, and checked my odometer lights, ran the smog test and it passed with flying colors which in my opinion didn't add up.. The OBD codes that keep popping up are P0145, P00147, and the most recent I believe is P0141. The last one im not sure ill check and post back later. I know of where one leak on my EVAP system is at, the main one that I believe I can smell the gas coming from is the EVAP hose located on the Intake manifold that goes to the purge valve canister located on the upper fire wall located on the passenger side of the engine bay. Im wondering how I can get my idle running in the correct sequence, as well as how would I be able to tackle the whole EVAP system malfunction??? all info is welcome and greatly appreciated... Please feel free to debate what could be the problem or fix, I am not a mechanic but I do know how to read a Haynes Repair manual...

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Old 09-27-2013, 03:25 PM   #2
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Old 09-27-2013, 07:43 PM   #3
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Check the coil, MAF pigtails for cracked or pulled wires. Is the charcoal canister pigtail plugged in all the way? The vacuum line going to it plugged in?
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