Lt1 will still having issues
Thread Starter
Teching In
Joined: Aug 2010
Posts: 23
Likes: 0
From: baltimore
Lt1 will still having issues Well guys im out of ideas. My lt1 is still sputtering and backfiring at wide open throttle. It drives good on moderate accelerdation but wide iopen throttle it has serious break up. I replaced the opti thinking it would fix the problem. It didnt i sent the opti back and replaced it again thinking the opti i bought was bad two in one week. I changed coil, wires, plugs, icm, and knock sensor because i got a code 43. It cleared the 43 after replacing knock sensor. But that was the only code i got strange though. Im running open headers no cats. Cold air intake, electric water pump bbk under drive pulley 255 walbro pump. Shouldnt i get a code for o2 sesnsors??? simple fact becasuse im running no cats and open headers. I use to get a code but now im not. Im no tech i just turn wrenches and past that i get lost.. I double checked wires made sure their not touching primary and arching also the wires are not crossed.
