HELP!! Misfires after going lean on nitrous

[Tarinitup1]

My truck is running again since I melted 6 spark plugs and broke the flexplate at the sar meet and I am having some misfiring and popping from the exhuast. No diagnostic codes are being thrown. I have already changed plugs, wires and now need some ideas on what to try next. After running the new plugs for a few miles I pulled them out again to check them and found that 7 of them have light brown electrodes but 1 has a white tip and the porcelain is bright white while the others brown. Could it be a failing injector, coil or 02 sensor? Also my afr went from 13.0 before the lean condition to 14.0 WOT now that it's running again on the same tune. My only plans so far include having my buddy log it on HP tuners and doing a compression test.

[RedHeartbeat]

Dude, sounds like you were spraying it and now the engine is a goner.

[GasGuzzler]

I gaggree (per Vince Young). It's probably not ignition or that plug would be fouled.

[ma.racing]

no fuel most likely

[Tarinitup1]

Don't think the engine is a goner cause it has lots of balls even though it's missing. if the plug is clean does it mean that it's not lighting or would the injector not be working?

[ma.racing]

if it wasn't hittin it would be fouled

[RedHeartbeat]

Your cylinder walls are trashed, most likely. You're getting oil past the rings.

[ma.racing]

he sead his plug was clean

[ff_jeff]

maybe an air leak. Check all of your intake for possible leak. If any air gets passed the MAF it will run lean. If you have to take off all your intake couplings and put them back on tighter. See if that helps. dont spray is unil you fix the af ratio problem. Also check vacuum hoses, and ports.

[SUX2BU]

Sounds like it's sucking coolant in the cylinder.