badass98svt Posted July 5, 2016 Share Posted July 5, 2016 I have a 2007 2.3 that is throwing a couple codes. P2004 - "IMRC Stuck Open Bank 1" I'm assuming this is one of the two actuator/solenoids I can see under the upper plenum area. Which side is Bank 1? Drivers or Passengers side solenoid? I checked the hoses and everything else I could get my hands in, and everything seems OK. Anything else to look for before replacing anything? I'm also getting a P0420 - "Catalyst System Below Threshold Bank 1" What's the chances it's an 02 sensor? Or is it a cat? Which one? 0 Quote Link to comment Share on other sites More sharing options...
manuelram16 Posted July 19, 2016 Share Posted July 19, 2016 I just got a P2004 & P2008 on my 2008 Fusion with 90K, checked the two actuator solenoids on top of the Intake Manifold, the right one is for the IMRC and sends vacuum to the actuator below the throttle body. I checked the vacuum hoses and they hold vac.ok, you can test the hose going to the actuator by vac.it yourself and if you can see the lever moving and no leaks it probably is ok next unpluged the pigtail from the right side solenoid and used a voltmeter on the pigtail and the meter reads 12V with the engine at idle, connect it again and checked solenoid operation - but there is no vacuum getting through the solenoid to the actuator below, so it's gotta be bad Ford wants big $$$$ for that part so I looked in fleabay and searched for 9J559 and found it for $7 so I ordered both. 0 Quote Link to comment Share on other sites More sharing options...
MightBeASynth Posted July 19, 2016 Share Posted July 19, 2016 (edited) I would fix the first code before the P0420. If air or fuel is having a problem then parts of the emission system will fail sympathetically. If fixing the first code and clearing all codes does not fix it then the next step is an O2 sensor or failed converter would be my next rough guess. Edited July 19, 2016 by MightBeASynth 1 Quote Link to comment Share on other sites More sharing options...
manuelram16 Posted July 22, 2016 Share Posted July 22, 2016 Update on P2004 and P2008 codes: replaced both IMTV and IMRC solenoids and cleared the codes, problem solved, car idles much better now. I recon if you are in high heat area the solenoids are gonna be fried much faster 0 Quote Link to comment Share on other sites More sharing options...
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