missfiring after putting in a yank sst 4000?
 

well put my built tranny an stall in last night an now my truck is missfiring randomly, i cant think of y its doing this, any info is appreciated

also its not throwing any codes

Is the misfire count changed for that loose of a converter?

:confused: thats the only thing that i can think of

You will need to change your tune with the new converter

ya im waiting for my tuner to get time:bang:

turned out to be a o2 sensor that was only working part time an adding way to much fuel, glad it was something simple:nod:

I like simple fixes! Glad you got it worked out

:thumb: glad it was an easy fix too!

x2
thought I had a fueling issue last week cause truck kept going lean, narrowed it down to cylinder number 5 and found it was just a plug wire:D