is200 misfire codes confusion

[mista_khan]

Hi

ive been having my trc and engine lights coming on for around 5ish weeks, started on p0302 code so i had the coilpack changed, error came back, slowly messed around moved around spark plugs, moved around coil packs, still p0302 would come on followed by numerous other cylinders even when ive removed the codes using obd2. finally last week i changed all 6 spark plugs, when removing them , atleast 4 of them were drenched in oil, from the top where the coil pack sits, even after cleaning the cylinder before adding new sparks, the error code has come back on today on multiple cylinders after around 5 days of installing them. One thing ive noticed is error code shows up alot more on really cold days?

 

car is a is200 auto on lpg but the error codes always come up when driving on petrol never on lpg. 

whats my next option on this issue?

[Haylands]

Try the cheap simple things first, after a good run, wait 20 mins then check the Battery voltage, should be around 12.6volts, if it's anywhere near 12volts then the Battery is on it's way out.

Also check the earth straps for cleanliness, especially the engine to body earth...

[mista_khan]

hi pal, I had a brand new Battery installed less then a year ago so Battery is sharp, ive checked the earth wiring and everything looks good, whats next?