ok my question is if i have a bad sec injectors like is not spraing right or just dumping the fuel, could it missfire at high RPM? because what it does is that at .80 of boost my car missfires and black smoke comes out of the exhaust like is wicked rich. im just trying to solve a problem that im been trying to fix for a while and that the only think i can think of because i done everything that is related of thanks

eddie

 

sorry let me explain a little better is at .80 bar of boost i check timing and is on factory spec and i have a Safc and at 0 correction it still does it. i have B9EGV and a MSD box, i should not have no ignition problem. i dont have no intake leak at all, i took all the intake apart and i have new gaskets and everything on it and i even did the TID mod. i done everything i could find on the forum but the only think i can think of is the sec injector because it came out of my old GSLSE and i havent clean them . i clean my grounds and i have a rewired the fuel pump and a FD fuel pump and a month old fuel filter. anybody with suggestion? maybe is the injectors? thanks

 

how does it idle? sounds possible that your secondary might be dumping fuel. did you replace your injector gaskets?

 

idles fine, sometime idle funny under load like if i get the heater going and the lights at the same time but other than that 900 rpm fine. i replace the grommers and the orings on all the injectors what other injector gakets you talking about. the primary are new but the sec are from my old gslse and i havent send to rebuild or clean. that why i had my thought about the injectors

 

That doesn't mean you don't have one. Your symptoms could just as likely be from lack of spark as from too much fuel fuel. I cured a high-load misfire by replacing a spark plug lead.

If you think they could be the cause then take them out and check them as per the FSM. Better yet just get them professionally cleaned. Even if it's not the problem you should still do it.