My 190E 1,8 from 91 "was" running perfect with 160k miles on it UNTIL I
decided to give it a nice body and engine cleaning.
The engine was cleaned with a high pressure lance. Now it idles rough,
almost like it was missing a cylinder.
When letting it rev higher...I runs smoother...but not perfekt.
After testing, I unscrewed sparkplug of cylinder No. 2 and it was all wet,
worse then the other 3.
- distributor cap is dry and replaced by a new one
- the distr. finger is new
- all 5 wires and plugs are farely new
- all 4 spark plugs were replaced
- I checked all 4 plug wires and measured about 1300 ohm an each
- air intake is clean and filter is clean
with all that replaced...it didn't get any better.
What can it be? Some electrikal Problem maybe, because of the water from
cleaning or the hard impact with the water jet?
This accured right after the engine wash, so no sign of malfunktioning
Funny thing is, right after the cleaning, I drove a couple of miles, and it
was fine...then after a while...it started malfuctioning.
Thanks for any help, since I don't know where to start. I hope it's just
some kind of sensor, since this happended with the coolant sensor last time.
After cleaning the engine, I had to replace the coolant sensor.
PS not gonna clean it again :O) but it looks so nice now...like new!