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Braking and cutting out

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Old Jan 19th, 2014, 09:45   #1
TomW
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Default Braking and cutting out

While running on LPG and braking to a stop, the revs on my V70 Bi Fuel die and engine cuts out. It only happens while slowly coming to a halt. I can only think that it's the extra power requirement needed by the ABS. Does anyone else put up with this?
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Old Jan 19th, 2014, 10:33   #2
classicswede
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It is the servo changing the manifold vacuum that bringing the cutting out on.

The cause is poor fuel mixture control, it might be time to give the stepper motor a flush out again. Increasing the gas pressure a little could also help but you might end causing other problems doing that.
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Old Jan 19th, 2014, 14:53   #3
Simon Jones
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Do you sometimes get a hissing sound from under the dashboard when applying the brakes? That it classic signs of servo fault on P2 V70s.
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Old Jan 19th, 2014, 15:05   #4
TomW
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Classicswede
Thanks. I will give it a flush out. Last time I did it was 10k miles ago but never had cutting out before while braking to a halt.

Simon
Thanks. No hissing and braking efficiently. Just annoying stalling sometimes coming to a halt.
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Old Jan 19th, 2014, 18:20   #5
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All cleaner soaking in now and ready for me to start up tomorrow.
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