Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Getting misfire codes P300 P301 P302 P306. Data reading has 2 rows for Current sync one reads OK the other keeps jumping from OK to SYNC LOST. I am using a Modus Ultra . Checked the cam and crank signals all looks good. Any ideas what I am doing wrong or what to look for?
Thanks
Dave
Are you feeling a misfire ? These are known for raising multiple misfire codes when no misfire is present. Eric O on the SMA YouTube channel had one recently same year same engine it was crankshaft sensor although crank and cam looked perfect on the scope.
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Last edit: 8 years 2 months ago by Andy.MacFadyen.
Yes I am feeling it as well as reading it on my scanner. Changed cam, crank, map sensors as well as coil pack and plugs. Checked for vacuum leaks. Just replaced head due to water jacket crack. Drive great for 40 miles then this issue poped up with no warning. Checked compression, cylinder leakage, as well as valve timing, running out of things to check. Wondering if head was assembled incorrectly. Bought new instead of rebuilt to try to avoid any issues.
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