hi everybody

while drivng two days all of a sudden
blinking engine light : pulled the codes : p0300 p0301

yesterday we checked for vacuumleaks(carbcleaner) and found one leak in the tube between brakebooster and manifold.
fixed the leak.
and the car running smooth again.
but this morning again blinking enginelight ulled the codes: and now P0300 p1313 p1314

reading reading but a little bit confused now how to proceed :finding the problem .

 

Vacuum leaks probably aren't causing the misfires, but the misfires are causing catalytic converter damage. Adding the engine type and miles to your signature will help narrow things down. See the attached png for possible causes.

 

it's a x type 2006 3.0L 78000 miles

 

Flashing MIL = severe misfires, causing cat damage

Don't keep driving it. Fix it urgently.

 

jag v8 thank you
that's what we are doing :not driving it.
and trying to find the problem.
but we are a little bit in doubt how to proceed :after finding and repairing a vaccuumleak.
this morning when testing : p0300 p0301 p0304 p01314
??
what would be wise to do next?
thanks

 

p0301 (cylinder 1 misfire) p0304 (cylinder 4 misfire). You can move the coil from cylinder 4 (center front) to cylinder 2 (left front from front of car) without removing the intake manifold (required to access cylinders 1,3 & 5), clear codes and see if the error moves to cylinder 2 to check that coil.

When removing the coil, check for oil in the spark plug well. If there is oil in there then you will have to replace the valve cover gaskets. You could also pull those plugs and check their condition.