Introduction
The idle speed regulator is not a sensor but an actuator. It has several functions, including that of a starter. It is controlled by the engine computer.
This is a very well known problem on Bosch single-point injection TU engines. If your 106 has a rough idle or stalls when stopped, this regulator may be the cause.
Tools
Parts
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The idle speed regulator is located against the single-point injection block
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the big pipe you see above the regulator is part of the car's LPG system; you won't have it on a classic 106 (this will make access to the regulator even better)
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it is this black piece indicated by the arrow
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pull the ball joint to put it in the "accelerated" position and remove the end of the cable from its housing
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remove the throttle cable completely
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and put him aside
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disconnect the regulator by pressing the clip and pulling the plug
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the clip is behind
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just press it to release the hold
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unscrew the 3 regulator fixing screws using a T25 torx key
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A ratchet with a T25 torx socket can make things easier.
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do not hesitate to use a magnet to retrieve the screws
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remove the regulator and the cable gland (it should normally come with it)
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The cable gland is sandwiched between the injection block
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and the regulator
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you will have to align everything well to be able to screw
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screw in the 3 regulator screws
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I use the T25 torx socket to go faster
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but you can do this with a classic torx key
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Pass the throttle cable through the cable grommet
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insert the end of the cable into its housing
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and release
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replace the canister hose if you removed it
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It is not necessary to pass the suitcase, the car should normally do its self-adaptions and the regulator should work.
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2 Comments
Thank you, excellent tutorial