Its a 2.0L 16V. 2002 model Trajet.
I opened the spark plugs today, none of them had the screw on tops (Little
silver threaded caps), so got some tops and put them on. The plugs make a
better contact now.
Cylinder 4 right side one had liquid in there, indicating no spark, so
removed all 4 plugs and placed on the engine block still connected to the HT
leads. Turned over the engine and all 4 were good sparks, so its not any of
the coil packs or HT leads
Point to note, a strange layout, left pack does cylinder 2 & 3. Right pack
does 1 & 4. But they can go no other way due to the lead lengths.
Connected all back up engine running better but still rough at idle, once
the engine is hot, its runs perfectly, but the Check Engine light is still
Is there a way to read the codes without a reader? Or take a trip to the
garage next week and see if they will read them for me.