car rubs fine then goes bad

[abels14]

Ok so ill be driving and car will be running perfect. Then it feels like somethibg clicks and i loose alot of power. It sounds like it has an exhaust leak and idles bad. Then ill be driving along goin threw the gears and it will click back and have power and start pulling alot noticably harder and runs fine like this then will go back to crap and repeat. Checked maf. Any ideas? Knock senor or vacum leak?

[Chaluska]

Ok so ill be driving and car will be running perfect. Then it feels like somethibg clicks and i loose alot of power. It sounds like it has an exhaust leak and idles bad. Then ill be driving along goin threw the gears and it will click back and have power and start pulling alot noticably harder and runs fine like this then will go back to crap and repeat. Checked maf. Any ideas? Knock senor or vacum leak?

fuel injector clogging? fuel pump?

[abels14]

Changed tge first injector abd seens to have fixed it :)