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no cat

800 views 2 replies 2 participants last post by  02WHTXtreme 
#1 ·
because i have an internal egr on a 2002 and i have no cat, could this be the reason my truck runs weird after its warmed up. after ive been on the free way awhile and then i go into town my truck starts to run weird after i sit at idle for awhile. It dosent idle eratic but if i give it gas sometimes it doent really respond and it sputters. I was thinking the fuel pump but i doubt it cuz ive always ran injector cleaner and it never as been stressed. Maybe im getting bad air when i idle? How could this be?
 
Discussion starter · #3 ·
sometimes but i have the o2 simulator by casper
 
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