Could be one of the coil pack, try getting one from a breakers and testing on each of the two coil packs
Hi,
I had a similar problem with my Renault Espace 16V 2 litre. Try replacing the Idle Control Valve. Costs some 25 -30 Euros on Internet shops in Germany and is just held in plce with 2 screws. You can also just remove it and clean the shaft etc with a good solvent, since with time this gets really clogged-up, and then replace it and hope that you have resolved it. After refitting either a new one or a cleaned one, you should let the motor idle for awhile so that the MCU can reset itself.
Best of luck, Joe N
Hi, Further to my Solution above, I found out that there is a little trick you need to do on the new idle valves with these Renaults.
You need to index and initialize the valve to the required number of steps otherwise the system thinks it is nearly shut when actually it is partially open and will idle very high.
Just disconnecting the battery will not do this.
It is a function that is available on a Renault specific scan tool which makes it much easier but there is a procedure you can use manually to do this.
With ignition on for 5 seconds (with engine not running), remove idle valve block connector. Then turn the ignition off and wait 10 seconds for system to power down, then reconnect idle control valve connector. Turn ignition back on without starting engine.
Then repeat this complete procedure 3 times. After this, the idle control valve will normally be indexed to the correct idle position.
With valve reconnected, start engine and allow it to idle; as system adapts to the new valve idle speed will start to hold at normal speed within normally 1 minute.
If the idle speed is still too high or low, then you need to repeat the above procedure again, but normally it does it first time if all pipes are intact and not leaking.
All the best, Joe N
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