I think I might have knocked something loose in my exhaust a few days ago when I bottomed out a little going over a hill (Long story dumb mistake who cares). I am starting to get random misfires now when I start the car I get 16-30 sometimes when driving I'll get 2-6 just cruising down the road. I can hear a "farting" noise from underneath me. It's really obvious to, the whole car jerks like it's stalling out for a second then resumes as normal. The Wideband doesn't go nuts nothing appears wrong ( no CEL or crazy AFRs) just the feeling and the interceptor showing the misfires. I tossed the car on the lift nothing was loose when I shook it. What could have happened?!?!

 

You just made it mad haha, but i would not trust the intercetor reading for misfires. If you feel it though then thats a different story. Check your coilpacks and sparkplugs just to make sure that those are all good. Just have to start narrowing stuff down.

 

I'm more than willing to give you a ride in it. You can feel it. When I start it up sounds like it's got a steep cam for about 20-30 seconds then idles out smoothly.

 

i leave thursday morning for school i can get my buddy to log it for you with trifecta or i can hook up my hp tuners to it and look at the log myself. Make sure you dont have any vacuum lines loose too. Its weird though if you arent running rich and your missing, as long as your plugs are good. Are you using a wideband or the interceper for afr?

 

Wideband for AFRs. That's what was getting me. I would watch it to see if it went rich or lean to see what was going on but nothing happens ussually stays where it's at. I am only avail tomorrow. Are you able to hook up Hptuners and take a quick look and maybe you'll see the problem. The plugs are new (4 months old), I don't think they would go bad. I double checked the gap before I put them in.


EDIT: You know what, I think it might be the harness. I remember I had Blue cap injectors when I did the car. Aren't the stock LSJ's green?

 

i think stage 2 is green iirc, i am avalable tomorrow as well just have to get me a time window when you will be we would just need to do a quick log so that i can look at it and see f it could possibly be tune related

 

Just shoot me a text of when you're available tomorrow. I am off all day. Anything after 7pm is bad though.

 

ok ill text you later tonight when i know what time im doing everything tomorrow