andy1t

hi... thanks for the input.. had car for 10 yrs... only 161,000 km (100,00 miles) im in Canada.... on clock.. wifes daily driver.. regular oil change every 5000k (she always gets it done ). Found dirty throttle body, also air intake gasket wasnt in best condition....cleaned and replaced both gaskets.... checked fuel pressure (58psi). Where can i get my hands on a bi-directional scanner...to do relearn on sensors ..?

Hi... new to forum. I am at my wits end... P0300 code wont go away on my 2010 Journey 2.4L DOHC VVT.. changed timing chains, tensioners, crankshaft sensor, MAP sensor, IAT sensor, coilpacks and plugs...tested cam sensors( both operating as they should), still cany figure out what the hell is causing the Random Multiple Misfires.... Can anyone help with suggestions as to what i can do next...? ( local shop quoted up to $4k to diagnose and repair ). Thanks.

im having similar problems...replaced timing chains, plugs, coil packs, IAT and MAP sensors, ( contacted local Dodge dealer and was told no MAF sensor on this engine ),crank sensor...cant find any vaccuum leaks...im at my wits end...got no idea what to loom for next. Runs ok on idle... rev to 2000rpm.. CEL comes on flashing... check code again... ssme thing.. P0300.. random multiple misfires....anyone pls help..