I am helping my neighbor with his 98 tacoma 4wd with a 2.7l 4cl.
It originally had a dtc code on it. I fixed the ETC and the 02 sensor, and code is now gone.
However it still misses/rough idles, and rumbles at higher speeds.
I checked the plugs,wires,coils,fuel injectors,maf, and none of them...