A Question came into my mind as im still suffering from an issue in my car..

- What would be the symptomps of a failure secondary injectors?

A desreasing boost on WOT ?

Or what??

 

For me, it was bucking/heavy hesitation under load. Switching to a freshly cleaned, low mileage set of injectors fixed it.

Another of course, is to visibly see fuel leakage when the rail held above the engine block and the fuel is pressurized.

Related, but not injector-specific, is leakage in the injector o-rings.

Dave

 

Decreasing boost at WOT is often a sign of a clogged cat.

 

Well, actually i have removed my pre cat replaced with a 3 inch down pipe.

 

What symptoms are you seeing?

Dave

 

i was actually referring to the main cat between the pre-cat/downpipe and the cat back exhaust.