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

limp mode

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Old Oct 10, 2011 | 02:32 PM
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limp mode

ok so out of no where my car started to have idling issuse it would idle at normal then jump up to 1500 then back to normal. then the other day it threw the ses light amd went in to limp mode. I pulled the app sensor and cleaned it with the battery disconnected and left it discod for about 10 min. hooked battery back up and the app sensor and still in limp mode. I am all stock except sri. any ideas or anything.. any feed back would be great.. tia
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Old Oct 10, 2011 | 04:16 PM
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did the check engine light clear? is it still in limp mode?

can't be much help if we don't know the code...borrow a code reader and post here with the code(s)
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Old Oct 10, 2011 | 04:26 PM
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the ses light is still on and still stuck in limp mode. dint know any one with a code reader. and the autozone here won't let u leave the parking lot.
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Old Oct 10, 2011 | 04:37 PM
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the last code it threw was a open throttle switch
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Old Oct 10, 2011 | 04:40 PM
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did you clean your throttle body...the APPS and TPS have to be in sync or shyt hits the fan. maybe the throttle plate is sticking?
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Old Oct 10, 2011 | 06:34 PM
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I did clean the tb I didn't notice if the plate was sticking or not. what's good way to cure that
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Old Oct 11, 2011 | 03:14 PM
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ok ran the the code.. got a 2127 tps generic circut low in put. now is that the same as the app sensor. if not where is it located.
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Old Oct 11, 2011 | 04:15 PM
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Try unplugging the APPS Sensor and plugging it back in. Do this while the car is off. This has helped me temporally fix my TPS problem before I replaced the sensor.

The APPS sensor is right behind the passenger side head light, and your throttle cable is attached to it.
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Old Oct 11, 2011 | 05:22 PM
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TPS is inside your throttle body. but that code is infact the APPS behind the headlight.

But make sure your battery terminals are good and tight, i had a APPS code after i hit a slight bump in the road, lol, went into limp mode at 120km/h.

Last edited by CrAnSwIcK; Oct 11, 2011 at 05:25 PM.
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Old Oct 11, 2011 | 07:56 PM
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I found the sensor disconnected it qnd the battery and cleaned the sensor and still in limp mode. thinking the sensor is toast. time to put her in the garage and tear her down and do some mods since the timing belt is due.
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Old Oct 11, 2011 | 09:11 PM
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Originally Posted by 05raslw
I found the sensor disconnected it qnd the battery and cleaned the sensor and still in limp mode. thinking the sensor is toast. time to put her in the garage and tear her down and do some mods since the timing belt is due.
the TPS is bad on these cars does not happen often and I think there was a recall on it so check with your dealer.

Unplug the ecu from under the dash all 5 connectors and plug back in after 30secs that should clear the codes. If it goes back into limp then the sensor has crapped the bed.
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Old Oct 11, 2011 | 10:02 PM
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any pics of the ecu so I can be sure on what I am unplugging
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Old Oct 12, 2011 | 05:03 AM
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this is the only pic I have , it's the only black box behind the glove box with 50 wires coming out

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Old Oct 13, 2011 | 01:11 PM
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ok pulled the ecu and it reset the ses light. I know this is a temp fix. now if its the tps what throttle body can I switch to ......
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Old Oct 14, 2011 | 04:55 AM
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ok so unplugged and it came back time to get the sensor
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