Searching and reading for a while !
Figured I'd make a thread
So my s13 sr has a random misfire at idle
Has a really bad cut out putting anything after 20% throttle
I don't know if my worn cam lobes have anything to do with it
<a href='http://i.imgur.com/HRp65Rh' title=''><img src='http://i.imgur.com/HRp65Rh.jpg' alt='' title='Hosted by imgur.com' /></a>
Timing marks are correct but when using a timing gun it was way off to get it at 15* the cas is at the end of the adjustment window ...
Things I've tested
Tried a freinds igniter
Unplugged each coil pack and injector
Tested cts and cleaned connection
Cleaned maf
Checked all clamps for possible boost leak (haven't done a test)
Mods
Walbro 400 (I know it's excessive)
Stock fuel lines
Z32 fuel filter (1hour of run time on it)
Stock 370inj
Wiseco 9.0 comp Pistons 87mm
Apexi 1.5 - 87
Stock valve tran fresh seals
T28 s15 bb
Fmic
It was doing the idle bog/misfire before I had a piston meltdown but only popped every now n then under load .
I'm gonna do a boost leak soon but in the mean time can I get some ideas tossed up..
Let me know if you need any more info.
Thanks
Also I don't know afr #s yet . Wideband on the way