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Discussion Starter · #1 ·
Hello all<?: prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" />

Could anyone give me a steer on this one?

I have an 06 plate Rio 1500CDRI, covered 40k. I have owned it for the
past 2000 miles

It has a low speed/ low rpm drivability issue. The best way to describe
the behaviour is that when coming off the throttle and re- applying it to raise
your road speed the car ""kangaroos""�, this is only on light re-application, if
you say set 1/3 throttle there is no issue other than you are now approaching
the traffic in front far too quickly!! . It's almost as if the throttle is too

To build a picture and to cover off the normal questions.

Under 2000rpm, more noticeable in 1<sup>st</sup>/ 2<sup>nd</sup> gear.

No relation to engine temp.

No engine management light on.

No excess smoke.

Good fuel eco, around 55-60 to the gallon.

Good performance.

Fuel filter changed, and system checked for water.

I have run a bottle of injector cleaner through the system.

Any ideas?

Many thanks

2 Posts
Discussion Starter · #3 ·
Hello Diddy

Thanks for the reply.
The problem has been there since I brought it.

I have now refueled on four occasions using different stations. The normal daily journey is a mixture of M and A road. there is no excess emissions. I am wondering if this was a known issue and maybe there is an engine ECU update available ??
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