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04-06 Ralliart Engine/Drivetrain (no forced induction)

P2121 throttle position sensor

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Old Jul 22, 2011 | 12:47 PM
  #16  
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Originally Posted by GTurlington
I am having the same problem, how hard is it to swap the part out? And does anyone have a part number? Thanks in advance.
Install is simple, a few bolts, and one plug. The sensor is conveniently placed right in the open behind the passenger side head light.

PT#MR578861

I had ordered mine on the 20th, and hopefully mine will be in early next week. But shipping to Canada is never fast.
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Old Aug 22, 2011 | 09:55 AM
  #17  
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I got the part last Friday, installed it Saturday afternoon, two bolts, a cable and a plug later my car is running like it used to. Thanks again guys.
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Old Feb 23, 2012 | 07:34 AM
  #18  
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Sorry to bring up an old thread but is there any place I can get this part for cheap from?
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Old Feb 23, 2012 | 08:24 AM
  #19  
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google the part number, i'm sure there's cheap parts out there...genuine OEM is only $200
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Old Feb 23, 2012 | 10:29 AM
  #20  
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Originally Posted by CrAnSwIcK
google the part number, i'm sure there's cheap parts out there...genuine OEM is only $200
I've been searching, all I've found were like three prong ones, ones for evos, or other motors, but I'll keep looking. Help me out? Haha.
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Old Feb 24, 2012 | 09:19 AM
  #21  
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From: Pursuance Motor Works - Calgary, Alberta
I need this part too. MR578861. I had a fender bender with a tree last night and it broke the connector.

Would it be the same part as the 2.4L Eclipse?

Last edited by Resurrected RA; Feb 24, 2012 at 09:55 AM.
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Old Feb 24, 2012 | 11:41 AM
  #22  
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Going by the picture, it has three prongs. The ones we have, have about 6-8 prongs. I found one but it's like 200+ shipping. If that's the best price I can get for a little sensor then that's our only option.
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Old Feb 24, 2012 | 11:53 AM
  #23  
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http://www.mitsubishiparts.net/cart/?pn=MR578861 and http://www.mitsubishipartsdept.com/O.../MR578861.html where the only two I found.
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Old Feb 24, 2012 | 01:08 PM
  #24  
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it's be more than that from the dealer...
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Old Feb 24, 2012 | 10:24 PM
  #25  
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That's insane. lol. I hope I get this job then. Man... Ralliart + First Car = POOR!
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Old Feb 25, 2012 | 06:15 AM
  #26  
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trust me you DO NOT want to buy this from the stealership. i paid over 300 when the ra was a daily for me
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Old Feb 25, 2012 | 09:07 AM
  #27  
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So this is my best option huh? lol.
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Old Feb 25, 2012 | 12:15 PM
  #28  
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From: Pursuance Motor Works - Calgary, Alberta
My car was towed to the Stealership yesterday, I asked for a quote on the accelerator position sensor. I might just try and sell this car to someone...I will have to wait for the body shop appraisal...

Been a tough month, broke my ankle, ended a long-term relationship, now crashed my car...still don't have confirmation of my next contract as such I'm not working...FML.

Last edited by Resurrected RA; Feb 25, 2012 at 12:19 PM.
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Old Feb 25, 2012 | 12:32 PM
  #29  
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sadly, there's always worse things that could happen...keep your head up, and things will come around...
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Old Feb 25, 2012 | 04:20 PM
  #30  
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Damn all that? Wow, keep your head up man! You got the EvoM forum for support!
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