Jumpy Throttle On Accel

[meltaz69]

I put my foot down and the car judders i drive a l reg 9000 cse 2.0 turbo had the starter motor problems changed 2 door handles (due to stolen car hitting it) glued a lot of brittle plastic and now it misses when you accelerate help

[Kelvyn]

I'm certainly no expert, but from reading other posts on this forum I suspect that your DI cassette may be on its way out.
If it were my car I would start though by checking that the spark plugs were in good shape and are the correct type (NGK BCPR7ES-11), after that check that the fuel filter is clean that gets rid of the cheap problems.

[ksowden1]

I have the same problem on my Missus's 9K. That has got a brand new DI pack on it though!

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does your car jump all the time? Mine does but only for the first minute or so and at low speeds, I am told that this is a common hickup on 9000's a good service seems to make the problem a lot better.

[ksowden1]

All the time....under even very mild acceleration. Im going to fill up with super unleaded next time to make sure that isnt the problem.

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I always find that super unleaded makes her more responsive but I never get much better fuel economy as promised by the garages!

[ksowden1]

Changed plugs today (see the spark plug topic) and sorted the problem. The plugs I swapped them for were not new either so did not cost me anything...extra bonus!