Reread you post again.sounds like your tps is dropping out.with that milage on it;i think go for that.also oem is the best for repair.some of the aftermarket stuff is sometimes crap.pay the extra for the parts

 

I thought going up to the boush+2 plugs was better then the factor ones that was in there. I'll have to look into the TPS. I just don't like it when my vehicles aren't running 100%. I also try to replace something as soon as possible.

 

if im not mistaken, platinum is a higher resistance metal, where as copper is up there in top conductors, thats why we stick with the copper core plugs, dont last as long but relatively easily to service in a tune up, you know what to do now.

 

ok, my truck acted up again, twice today. I looked under it and I only see 2 senors (1 before cat and 1 after). If their is 4, where is the other two?