06 225hpdi fouling#1 plug

[blazer taz]

swaped #2 coil to #1 coil to see if i had a weak coil and replaced fouled plug with new plug. fished tour. today rpm still down 5600 and #1 plug was fouled badly. i think i might have a bad injector. power head was replaced 6 months ago. any suggestons

[dtarules]

I hate to say this but mine did the same thing before a blew a hole in the side of the motor about the size of a half dollar. I would take it somewhere to get checked out.

[JUST-IN-TIME]

could be an injector