P0300 Jeep -

Question

got 150 compression. checked each coil good spark. pulled fuel rail loose set it down in small gerber jars got equal fuel out of all 6 injectors.will not start .fires but will not stay running. any ideas would be great.

Answer 1

Hi there,

I would check for any intake manifold leaks, many times when you have this issue it can be a problem with a large vaccum leak. The issue can also be caused by low fuel pressure. I see you checked the flow, but knowing the fuel pressure would also help. On this it should be in the 50 psi range for it to continue to run. These are the areas I would look at next.