Zenki rida
11-09-2012, 01:50 PM
built a 87 s12 with a ca18de from a s13 silvia for a good buddy it was running fine for a week and two days and then it started back firing wasn't that bad at first but throw out the day it got worse and worse to the point were u couldn't get the rpm up high enough to shift into second gear ive looked everything over twice checked fuel pump replaced fuel filter new plugs and o2 senser it idles but as soon as u hit the throttle it starts back firing and sounds like its running on two or three cylinders any suggestions would great but need an igniter to test or if someone want to help us out its cold in calgary lol come on