98 Tracker Sluggish, misfire

[fixkick]

if engine misfires WOT
it is not the crack, WOT shuts down the 02 , and there is no closed loop , wow or accererating
does WOT fail?
wot=wide open throttle, sorry for jargon use...

hot engine, ECT shows, 180F+ mine had 195F stat , that I liked.
The engine sensors must read correctly at idle (seems they ) and at WOT
key sensor then is MAF,

a good scan tool has button called pendings, (the rules of 2 driving cycles to see some DTC is a pain) but we use the pending button to see all DTC'S tripping but not just stored.
The DOOM fuse must be good or the ECU can not store, DTCs and then you miss them , and that is never good that.
codes to look for is easy, app P03xx codes, every one is misfiring in all flavors.
drive and scan is the only way to fix any car that is for sure misfiring only driving and not at idle misfiring.
drive and log or use the 2 man rule, one drives other looks or logs.

also know this about suzuki, 1996 +
the OBD2, is detuned for misfire, what that means is they expect 4wd to set false misfire codes, so they (dang) tune the P030x codes (x= 0 to 4)
so drivers are not scared of this offroad 4wd, this is 4wd feature but makes finding misfire codes harder.

and the 2 driving cycle rules to set many DTC, this to makes working on cars harder.
PENDING CODES is the salvation here.

this can unhide, CMP and CKP sensor MISFIRES. the ECU loves to hid those 2, for sure, so we must look hard to make sure that is not happening
again Pendings.