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Old 08-10-2014, 04:44 AM   #1
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2004 svt rough idle

so i bought my 2004 focus svt a couple weeks ago. i noticed it had a "stumble" to it while cruising down the road. I tried using simple mechanics on it seeing how this is my first car i needed to do any trouble shooting on. so for ive changed the spak plugs, fuel filter, both O2 sensors, cleaned the k&n air filter out.
After i changed to O2 sensors out it started idling rough. and threw the code p0136 and p0190. i dont want to take my car to a shop to spend a load of money so you guys are my last hope. anyone have any ideas. thank you


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Old 08-10-2014, 04:53 AM   #2
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Moved to General Tech Chat, best place for repair questions.

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Old 08-10-2014, 11:03 AM   #3
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Check this out
http://www.focusfanatics.com/forum/showthread.php?t=215469
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Old 08-10-2014, 10:34 PM   #4
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You can check the codes in a "stickie" here:http://www.focusfanatics.com/forum/s...ad.php?t=59286

One relates to an O2 sensor, so there's likely a wiring issue with one of the ones you just replaced.

The other is related to the fuel pressure sensor on the fuel rail - check connector/wiring there first since you were just working on it...
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