All:

I have a 89 190e 2.6 with intermittent ABS light on followed by CE light that causes engine to stutter and fail...hard start (at all temps) and rough idle as well.

I pulled the OVP and did the "shake" test...old OVP rattled like a tin can with a coin in it, so I just replaced it this morning with an OEM Benz part from the dealership...made absolutely no difference!!!! ABS light is still coming on intermittently and CE light will reappear causing engine stall. Seems to get worse as the car gets warmer.

Before replacing OVP relay, I changed fuel filter, plugs, and new injectors and seals...absolutely no difference in idling and stall characteristics.

Today, Im also noticing that the defog vents on top of the dash are blowing hot air. None of the switches or the fresh air vent is switched ON at the console, but Im still feeling very hot air blowing from the right and left dash vents and the defog vents...additionally, from time to time, I get a whiff of antifreeze, but strangely, the antifreeze level is good, and I see no leaks anywhere (although I have not pressure tested system yet)??? Could this be a heater core or water pump issue as well???

Before I unload this money pit of a car, what additionally can I check for?

Do I have to reset the computer and erase all the codes for the new OVP to work properly?

Can someone please help??? I've read about 100 OVP and CE light related posts....so I'm in the dark on what to do next.

Thanks in advance for the help.

ICH