Haven't been on line long enough to post...

Things I've done on lunch breaks.

Cap and rotor- no change
spark plugs gapped to .032 Bosch yttrium super plus- no change
Fuel filter- no change

Found out the engine can hot start.. if I unplug the coolant temp sensor. I think.. By the thermostat there are 3 sensors.

One with 3 wires to it and 2 prong connector. One in the middle with one wire and one prong connector. (<----unplugging this one. It has an effect on running.)The last one has 2 wires and one prong connector to it, also the top is red.

If I unplug the one wire one prong connector I can start the engine with less than 5 sec crank time. I have to quickly plug it back in once started. Exhaust smells rich at that point.

Soo I thought the sensor must be bad. My brother has an 1984 190e too. I switched sensors with his. His car starts and runs fine, and mine still doesn't. Does unpluging the sensor just put a band aid on the problem? Must have something else going on. I haven't disconnected the eha yet..

To add to issues with the car: It runs ok. It just has a rough idle and while accelerating you can feel the engine shudder.. sometimes. Nothing terrible, but it feels like a misfire. When the car starts, sometimes it idles and runs fine and other times it surges to 1200 rpm and then fall down to 500 rpm. At that point it is running rough. I have to feather throttle for a min or two until it smooth out. Car doesn't smoke or burn oil.

Today I filled up with gas and added a bottle of redline fuel system cleaner. I believe someone on the forum recommends that additive strongly. 12 bucks. whoa

__________________
Dave

1985 190D 2.2 auto--gone
1975 240D 4-speed--storage
1985 500SEL--daily driver
1985 300TD--bad rust, soon to part out...
1982 300SD--waiting on engine from RD
1984 190E--storage
1996 Dodge 2500 Cummins--daily driver