Recently purchased an r33 and last week it dropped to 5 cylinders mid drive
Have ruled out anything spark related
Basically narrowed it down to head gasket or an injector
A compression test revealed cylinder 2 had rapidly dropped in compression but the mis fire is coming from cylinder 3
upon an oil test on the cylinder its compression raised back up indicating a faulty injector
Just wondering if anyone has experienced a similar problem and was it the injector or head gasket
any input welcomed