Question about Cars & Trucks
Vehicle is in limp-in mode. You must be resetting when you turn it off.
Posted on Nov 28, 2014
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Posted on Jan 02, 2017
SOURCE: engine power reduced
Locate the IP to body harness connector, which may be located in and around the left hand kick panel area or inside the IP. Check to see if there is a water leak into the area and repair as necessary.
Posted on May 24, 2009
Your car needs O2 sensors and if one or any are unplugged your car will operate as you described(like ****). To get your check engine light off you need to find out what is triggering the check engine light sensor. It it most likely in need of an O2 sensor replacement. If you can tell me what kind of car you have I can give you more information.
Posted on Jun 16, 2009
Are you loosing power to the ecu when the car is shut down? most cars with an ECU that controls timing, fuel, or boost can be forced to relearn the car if the ECU looses power (called a "limp" mode). I'd look into this. Also are you getting any check engine lights? considering the description of the problem, this would help to diagnose. Try getting the car started and running normally, then turn the car off but do not kill the power to the car, just stop the motor from running...Fire the engine back up and try to give the car a good stomp on the gas and see if you get the same sluggish problems...my 2 cents... Good luck future auto DIY's
Posted on Aug 29, 2009
SOURCE: I have a Land Rover
first of course make sure the basics are ok and not in major need of a tune-up, after that check the throttle plate for excessive coking build-up, the computer is reliant on small amounts of air passing through to properly raise idle, usually this problem becomes prominent when your a/c pump comes one (which can even come on when using the heater or de-frost) especially when the car is cold( restarting the engine a couple of times can affect the engine temp, though probably unlikely) An injector cleaning has also been effective in elevating idle,but wont correct the problem in itself, as cleaning the throttle plate can.(check with vehicle maker for any precautions to take when cleaning throttle plate. I usually use carb-cleaner and a tooth brush. Also check for vacuum leaks and wiring harnesses. Listen for a fuel pump prime when key is turned to the on position(usually 2 or 3 seconds) this usually just causes extended cranking time though . check this stuff if all ok give me more info and I'll give you some tips on how to isolate your problem
Posted on May 24, 2010
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