Ok, I have a 2000 Civic Si, with 9;1 weisco pistons, eagle rods,gsr intake cam, and a Jackson blower that was modded by endyn, along with aem fuel rail, 255 in-tank, and rc 550's. Now my problem is that I was running individual resitors instead of a box. And every so often it seemed that they would go bad and the car would only run off of two cylinders(it felt and sounded like). So I would just slder some new ones in and it would fix that problem. Well I got fed up with doing that every month, so I solderd in a resistor box, and now every once in a while I will throw a misfire code for all 4 cylinders and then about 5 minutes later the car will seem to only run off of two cylinerds. But with the individual resistors I would throw the same codes but the car would run fine. I dont get it........should geta new cap and rotor? I think the problem could also be the injector drivers in the ecu, but if it were those then the car wouldnt run at all. No-one can figure this out. Please help me. Sorry for the length.
Thanks in advance.
-Blake

 

why not ditch the peak hold 550 injectors and get a set of saturated 550's and this way you wont have to worry about resistors......

 

cylinerds are cool

 

Thanks for the advice so far.
ttt