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P0087 Help needed

RCZ GT200

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Help Needed
2011 GT THP200
Has anyone experienced this problem or can shed any light on what's wrong.
Every few days when starting my car from cold it struggles to start and misfires badly when it finally starts.
The throttle pedal is fairly unresponsive when its doing this and puts the engine light on.
If I switch off and do a code read it show P0087. If I clear this code and restart the engine its fine and drives really well.
The car is at a garage currently and they have eliminated the low pressure fuel pump and are leaning towards the high pressure pump causing the problem.
Any help appreciated.
Thanks
 

lfe

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Typical symptoms of high-pressure pump failure. The pressure in the injector rail should quickly rise to 50 bar upon startup, but it doesn't, causing misfires.

The same thing happened to me when the car had about 115,000 km on the clock. The solution was to repair the pump.
 
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