Question about 2006 Mitsubishi Lancer

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My car is reving on it's own while driving

When I drive around 40 miles per hour or lower, my car has recently been revving to almost 3000 rpms. It started having the problem after my car had died because of the battery. Once I replaced the battery it started revving on it's own. I have no idea what it could be.

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  • Contributor
  • 17 Answers

If it's standard shift ,might be the clutch

Posted on Oct 07, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

C4RN1
  • 14 Answers

SOURCE: engine problem

The codes don't match up to the chart. Do the keydance again and see if there is any difference.

here's the codes http://www.2gnt.com/index.php?d=PCM%20Error%20Codes

24 (Throttle position sensor voltage does not agree with MAP)
14 (MAP sensor voltage too low/too high)
Points to the map sensor.

I've scanned a couple pages in my Haynes manual and uploaded them for you. These pages will help you check out the sensors.

http://s145.photobucket.com/albums/r217/Carnifreekshow/Keydance%20help/

The password is johnw

More than likely it's the map sensor. I remember when i turboed my car i had major problems with the safc and the map sensor. It would act just like yours does. The ecu doesn't use the map sensor in closed loop mode. Open loop starts at 4000rpms and will start reading values from the map. If it is receiving values not in spec then it will limit the rpms and stay locked in closed loop.

Replace the map sensor and let me know how it turns out.

Posted on Sep 17, 2008

emissionwiz
  • 75222 Answers

SOURCE: '89 Camry Engine Revving in Park

You either have an intake manifold leak, a defective trottle position sensor or a stuck idle speed control valve.

Posted on Oct 11, 2008

  • 1 Answer

SOURCE: 2002 dodge ram 2500 diesel

I'm no expert, but I am on my second Dodge. I have a 2004 Ram 2500, 125k miles on it. I traded in my 2001 1500 with 99k on it.
Your problem sounds like one of two things that happened to me. At 110k mi's it was not accelerating properly, particularly between 40 and 50 mph. It turned out my torque converter was going bad and I ignored it for too long and it's disintegrated pieces ruined my transmission. I recommend getting over to Aamco right away or to the dealer if you are still in warranty and have the TC checked out. The diesel is just too much torque for a torque converter on the automatic transmission, but manuals are too much of a pain these days. $2300 at Aamco to have the TC replaced and the tranny rebuilt.

The new problem I have now is when it acted like it was out of fuel and then wouldn't turn over after it died. My fuel lift pump (diesels have two of everything and the expensive one is always what goes) has gone bad and is currently being replaced, $700 part, plus another few hundred in labor.
Hope this helps.
B

Posted on Oct 28, 2008

olasNick
  • 20 Answers

SOURCE: why is my jeep idling around 1000prms???

The carburettor(s) needs adjusting, there is a screw on it to adjust it, don't ask me the specifics of it as I'm no mechanic. (a grey metal thing attached under a plastic air box!)


Posted on Jan 30, 2009

  • 14036 Answers

SOURCE: Whenever I turn on my car there is alot of vibration from engine

bad engine mount make car shake.cylinder misfire make engine shake.

Posted on May 10, 2009

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