EHA, idle air valve stuck shut, incorrect fuel pressure, air flow sensor
plate sticking/out of adjustment and the list goes on..........
It is a matter on focusing on the things that change from when an engine
is cold to when it is warm. For that reason I would discount ignition
and valves.
Fuel pressure and air supply are the two main things that change,
however the main fuel pressure does not change but the chamber pressure
does.
Pinch your idle air hoses when engine is warm to see response.
Perhaps even dirty injectors.
Hendrik
Kaleb C. Striplin wrote:
On this new 300E i just picked up, workign out the little bugs. It
starts up and runs great when cold. AFter it starts warming up the
idle starts to get a little rough, and finally gets to where it will
sometimes die. Afterwards it can be hard to start, or start up
somewhat easier. Sometimes it will sit there and idle and try to die,
then recover and run for a little while longer etc. Just as quick
things I swapped out the coil and the ignition module, didnt make a
difference. So, seems like its something in the fuel injection. I
also noticed that it seems to have that smell like the cat is getting
too hot. I noticed this once before in the 380SE that I dropped the
5.0 euro in. Its cat would glow red hot I think because it was not
getting enough fuel, running too lean because the tank screen or
filter was plugged up IIRC. Wonder if this one is running too lean
when it warms up? Doesnt seem to smoke but does have a funny smell
like its either running too rich or too lean. Anybody got any ideas?
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