08 Grand caravan 116000 mi replaced trans 62te two years ago sat unused for that time. Now daughter is driving need it running. New plugs, (champion platinum) coils, (cheap Amazon) injectors (cheap Amazon) map sensor, cam sensor, fuel pump. Issues are p0300 random misfire and p0172, p0175 rich bank 1 & 2. Thoughts are bad injectors or timing belt.


Help

 

How was the van running before you replaced all those parts. And did you throw the old parts away? 2008 was the first year of the high- speed interior buss system. Has far as sensors and plugs use factory.