Hi guys,
since 95k miles i had this kind of problems with shake and misfire in morning start like the other day to go work, now i did change ignition coils and spark plugs, and mpg avg went up from 375 miles to 440 miles everything went smoothly for about 2 days then problem again of shake and misfire came back in morning our long time turned off in the day..is random too some days it happens and some don't shake but still turn on the engine light with misfire code P0303 and P0300 and secondary DTC of U044200 :invalid Data Received from ECM/PCPM "B"
Thanks in any help. Did try today the TECHRON Complete fuel system cleaner in gas tank to see if that help, as i have seen other post with carbon problems..
Thanks!!!
since 95k miles i had this kind of problems with shake and misfire in morning start like the other day to go work, now i did change ignition coils and spark plugs, and mpg avg went up from 375 miles to 440 miles everything went smoothly for about 2 days then problem again of shake and misfire came back in morning our long time turned off in the day..is random too some days it happens and some don't shake but still turn on the engine light with misfire code P0303 and P0300 and secondary DTC of U044200 :invalid Data Received from ECM/PCPM "B"
Thanks in any help. Did try today the TECHRON Complete fuel system cleaner in gas tank to see if that help, as i have seen other post with carbon problems..
Thanks!!!