1999 Lexus RX 300 runs worse after changing plugs

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  • 1999 LEXUS RX 300

Electrical problem
1999 Lexus RX 300 6 cyl All Wheel Drive Automatic 138000 miles

had codes p0300,0302,0303,0306,0330. Changed plugs(ngk bkr6eix-ll) and moved coils from misfiring cylinders to ok cylinders to see which coils may be bad. Now the engine won't rev past 2200 rpm while driving. Didn't expect new plugs to fix everything, changed them and switched coils prior to dealing with knock sensor code. Also pulled EFI fuse to clear everything enroute to autozone to have current codes read(yes I replaced it). Don't get it, the thing is worse than before

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Tuesday, November 3rd, 2009 AT 2:36 PM

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