Thanks for the reply. Well I have done a lot of things to my car so far. The previous owner must have driven the car without any maintenance. Well I have replaced a long list of parts
-new vacuum lines
-new vacuum sensor on top of engine(has 2 vacuum lines coming out of it)
-New fuel sending unit
-Cleaned idle control valve
-new 02 sensor
-fuel mixture was corrected to spec
-cleaned all electrical connections
-new air filter
-replaced #5 and #6 injector
-cleaned throttle plate
-new aux fan
-spent lots of $$$ on Techron
-Spent lots of $$$ on diagnostics
and a few things I cannot remember off hand
My last resort is to take it to the dealer for a diagnostic($200). Well my next project is to replace the other 4 injectors, if that does not solve this problem, I will have to take it to the dealer(the prices are so high!).
I was just hoping that someone had the same problem and traced it down to a simple sensor of hidden vacuum line.
It is very frustrating and I have spent thousands into this car, and it sucks that I still have this problem.
you may also want to do functional test on your cold start valve
How do I do this??
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
Monochromatic Paint (Custom Blue)
Flat Badged (front)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS