nigel45

I've been having this issue where my 1997 E420 will take forever to fire up when the engine is warm. First drive of the day (cold engine) it starts right up, and if the engine has reached temp and only sits for less than 20 minutes (still hot) it also starts right up. But if the engine is warm, but below operating temperature it takes a while to start. Also when idling the car fluctuates between 500 and 1000 rpm.


3 months ago I had a check engine light for a bad O2 sensor which I replaced, then yesterday the CEL light came on and I have a misfire in cylinder 6, which is causing the car to shake when in idle.


Is this a coil/plug issue or a fuel injection issue?

Plutoe

This is a wire, coil, plug issue----move the wire----- does the fault follow??

003stars

You first check the vacuum hoses on engine and switch the coil and plug to neighbor cylinder.
How thing follow to ? Check no oil leak in spark hole too. So you will find a problem I Hope.