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Hello,
long time member here .never had to ask for help before so not sure if I am even able or doing it right but anyway i have a 2002 Tacoma and am at my witts end it has a severe misfire w on 2 and 3 they are not companion cylinders it will not even idle it stalls unless foot on pedal anf keep above 1000 rpm , have 175 compression on all cylinders have fuel control on all signal wires coils work plugs good and has po300 and po303 and 302 or has 20% positive fuel trim on long and between positive 10 -15 on short and randomly goes to positive 3 on occasion. One o2 was moving good at .50 to .850 and the other rear one is flat lined also after clearing codes the one stayed between 800-900 would not drop any lower I did an ohm test on the injectors that were sus and compared to known good and had same but I don't trust that as I seen some test good in other vehicles but still not working. Any help or ideas greatly appreciated.
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