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Engine wont start, problem with the injectors?


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Have something wrong with a Jaguar Sovereign 4.0L 1997. (XJ
It will not start, does not seem to get any gasoline from
the injectors.
It came fuel in the hose to the Fuel rail when I turned on
the ignition, so I guess the injectors do not open?

There was an error code stored P1621.

What should I troubleshoot to find the error?
All fuses are intact but have not able to find a relay for
the injectors, where can I find that??
Is there anything else that could be broken? The DataBox?

Last fall, so started the engine but died after a little
while, and since then it has not started and have now been
standing since.

Grateful for any advice that can resolve the error!

Regards from Sweden! :)

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