jaguar s type error code P0304. What is this code?

Asked by Aug 05, 2015 at 03:10 PM about the 2002 Jaguar S-TYPE 3.0

Question type: Maintenance & Repair

Check engine light on.  Engine misfiring and will barely run at 40 mph

3 Answers

1,010

The code means that cylinder 4 is misfiring. It does not really solve the problem but you know where to look.

5,445

Check plug, coil and wire.

30

swatch around the coils from 1 to 4 if the code come back as p301 then you have a bad coil but if you still get p304 the check the spark plug and change all spark if need. If that doesn't solve the problem then you might have bigger problem like bad rings etc...

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