While trying to pass a vehicle my 4th cylinder misfired and i lost almost any acceleration. diagnostics then found error codes for the multiple misfire and misfire of the 4th cylinder and another error code for failure of the catalytic converter. i replaced all the ignition coils and the catalytic converter to fix the problem
To whom it might concern:
I was experiencing all of thee misfire problems and replace all which might cause the, it was not until check another sight out which offered possible solution I had not considered; Verbatim:
" Number 1 injector harness control wire( black) has a break in it causing all the above issues. You can replace the short harness or find the break in the wire and repair it. I found the break in the harness about two inches back from connector, it makes a hard bend back in to the loom".
I took the advice of the person who delivered the above information and solved my 6 month old problem. I do not know who he is, but I take my hat off to him..