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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

Starting but not running

  • Rene Beckles
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3 years 6 months ago #55084 by Rene Beckles
Starting but not running was created by Rene Beckles
I have a 2005 CS lancer 4g18 engine

It's starting and cutting out after a minute or so and if accelerator is press

Crank and cam sensors and fuel pump changed

Tried an injector rail with pressure regulator throttle body and same thing

No codes on Diagnostic

Any suggestions

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3 years 6 months ago #55086 by Ben
Replied by Ben on topic Re:Starting but not running
Did you check fuel pressure at rail?

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3 years 6 months ago #55087 by Rene Beckles
Replied by Rene Beckles on topic Re:Starting but not running
Not directly as the pump was changed and I tried another rail with injectors so figured it couldn't to be that

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3 years 6 months ago #55089 by Ben
Replied by Ben on topic Re:Re:Starting but not running
I would take a fuel pressure reading at rail with engine running. your description sounds like low pressure. Could be a defective pump, could be poor power or ground supply to the pump, could be a fuel line restriction.

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3 years 6 months ago - 3 years 6 months ago #55090 by Rene Beckles
Replied by Rene Beckles on topic Re:Re:Starting but not running
Ok thank you will do that
The restriction might not be as the lines were blown out going back to the tank the old gas was pump out and new gas added with a treatment
However I'll check again tomorrow and will post the results
Last edit: 3 years 6 months ago by Rene Beckles.

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3 years 6 months ago #55106 by Rene Beckles
Replied by Rene Beckles on topic Starting but not running
Good evening thanks so much for the replies I fot the problem fixed

It was the filter as the pump is assembled into the filter we changed the pump but not the filter

Thanks once more for the help

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