ok so i havent had any problems out of my car since i cleaned all my sensors and added the ground tranny wire, TILL i decided to change my plugs, now it seems when the car is cold(soon after starting or in colder weather) it runs great, but when the weather is warm or the engine is warmed up i get a intermittent loss of power at around 3500+ rpms, it still runs at higher rpms but it just doesnt have the power it did before changing the plugs and it acts like its cutting out a little bit.. also all my CEL's went away i have no lights on or codes popping when i check it, so im confused.. i tried swapping the old plugs(which loked good when changed) back in and nothing changed.. still did it.. i cant begin to think of where the problem is i have tried resetting the ecu (unplugged battery from car overnight) nothing ... any suggestions???

 

What plugs did you put in? Also get your car scanned for free at AutoZone, maybe you have a bad KS which won't throw a CEL.

 

Better be NGK Plats or... I.. will just... flip.

 

they are ngk platinums and i had it checked after it started acting up and they said it didnt throw any codes

 

well once an engine revs so high it eventually starts to lose power.. but not that low in the power band.. check out your KS, might have something to do with it.

 

+1^^^^^^