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Old 3 Weeks Ago   #1
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Marea Idle problem

The owner of the car before me connected a cable from the potentiometer black wire to the negative end of the battery. In this way, the idling always works between 2000-2200, when I disconnect the cable, P0110 and P0115 codes are found. Error code disappears when the chassis is connected Is there anyone who can help?

1.6 16v 2004 liberty
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Old 3 Weeks Ago   #2
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Re: Marea Idle problem

Hi,
Welcome to the forum.
I assum your Marea has a petrol engine and you are refering to the potentiometer on the throttle body?
The codes are more related to the MAF and temperature sensors

In any case it sounds like you have an earth connection problem on the car. Carefully check all the bonding leads on the car including battery negative to chassis, engine block to chassis and the earth connetions on the ECU.
Allso check continuity between the pin on the sensor with the black wire back to the ECU.

Robert G8RPI
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Old 2 Weeks Ago   #3
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@g8rpi Thank you for reply I check some wires i thinking something wrong? I uploading my ecu and wire connections, I when teaching service rephair manual my connection wire wrong, do you help me ?
Ecu IAW 4EF L2
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Last edited by suleyman23; 2 Weeks Ago at 15:55.
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