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Old May 10, 2012 | 09:06 AM
  #26  
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chrisb1357
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Joined: Jan 2012
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From: Derbyshire
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Hi

I agree with you on this but i dont have much funds at the min so if i can find out as much as i can myself before hand i can take this with me when the car gets booked in.

What tests should i ask my local garrage to do on the car?

The car juddered real bad this morning and nearly stalled and i got a DTC code from the reader which is below. Also done some tests see below.

With Key In and Engine Off




Engine On at Idel




DTC Code which was reported after the car nearly lost power this morning. I think the code was oly reported due to me nearly stalling the car due to the judder before.







Originally Posted by oldford
When a petrol engine idles the throttle is closed. That creates a vacuum (under pressure).
Whether 0,3 bar (4.5 psi) is exactly correct for your engine on idle I don't know. But it's at least close to what it should be. In general: the more you press the throttle pedal, the higher this reading will be.

Given the fact that your knowledge is limited, isn't it time to contact a professional?
Before you start replacing perfectly good parts that cost quite a bit of money.
Let's face it, for instance when I ask you to measure the fuel pressure you don't have the equipment to do that.
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