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Old 28th February 2009, 15:24   #1
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Default Fiat siena 1999 model - Higher RPM's while driving

I recently bought a Fiat Siena 1999 model which has run 64 k kms and i have been coming across a strange problem .. The Engine revvs on by it self when the car is in standstill and also on when on an average speed of 60 kmph,when i take away the accelerator to reduce the speed , the engine gives a jerk jerk all the time , but when i do press the clutch it doesnt happen . .i guess this might be cuz of

1 - Has the clutch plate worn out ?
2 - Why the higher RPM's even at standstill ? Is it due to the ECU ?

Can any one of you help me to solve this issue ?
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Old 2nd March 2009, 17:22   #2
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Idle rpm problem occurs mainly due to Faulty ICV or dirty throttle body. another reason for this is due to faulty lamba sensor / throttle body.

i think you need to go through this:

Cleaning Your Inlet Control Valve - The FIAT Forum

Refer these threads as well:


http://www.team-bhp.com/forum/techni...ight=palio+RPM (FIAT Adventure issues)

http://www.team-bhp.com/forum/techni...ight=palio+RPM (RPM shoots up when clutch depressed)

Last edited by planet_rocker : 2nd March 2009 at 17:23.
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