I need some ideas on this, it does it inconsistently under load and while cold especially. Already replaced the air filter, thinking about the spark plugs now. Wonder if I should throw in some fuel system cleaner, the Lucas maybe? Help.

 

never hurts to try is it throwing any codes?

 

Thanks for joining, romvert! Glad to have you as a part of our community

 

Thanks. The codes are as follows:
p0300 random misfire detected
p0137 ho2s-12 bank 1 sensor 2-circuit low input
p0171 fuel trim system lean-bank 1
p0442 small leak in the evaporative emissions system
p0135 ho2s-11 bank1 sensor 1-heater circuit malfunction