93'SR20DET240SX
04-01-2010, 09:00 PM
What would cause my 240sx with a S13 redtop sr20det to spit n sputter when accelerating? When i accelerate the exhaust will pop like its backfiring or something and wont allow it to build boost. Every so often it will and does build boost and actually puts it to use but that only 15% of the time tops. My main question is why do think this is, like what might cause this, or what do you think i should check first? ..........Please any help or suggestions would be greatly appreciated