the-bazman

ok will do , thanks again roy. will try the injector route first , failing that will have a look at the cat, cheers clifton

ok will do . whats the best stuff to use ? thanks for the reply mate. had over 80 people read this post and no one replied

hi all , im new to the forum so im sorry if this has been coverd before had a misfire on cylinder 2 in december . fitted new plugs as they havent been changed for awhile . still got the misfire so i changed the coil . engine light came on again and car still miss firing. left it for a little while as i run out of money . put it back on the computer beginning of the month at lexus themselves and it came up with p300 missfire p301 missfire p302 missfire p303 missfire p0171 system lean o2 sensors are ranging and heater circuit is working . they advised me to renew coils . so i did but still got same problem . saved some more money but im really stuck on where to go next . please help if anyone can

hi all , im new to the forum so im sorry if this has been coverd before had a misfire on cylinder 2 in december . fitted new plugs as they havent been changed for awhile . still got the misfire so i changed the coil . engine light came on again and car still miss firing. left it for a little while as i run out of money . put it back on the computer beginning of the month at lexus themselves and it came up with p300 missfire p301 missfire p302 missfire p303 missfire p0171 system lean o2 sensors are ranging and heater circuit is working . they advised me to renew coils . so i did but still got same problem . saved some more money but im really stuck on where to go next . please help if anyone can .