I think I may have finally figured out what is plaguing my car.

I was working on the 16-vlv last night down @ RC Imports & was trying to troubleshoot where my power loss & sporadic start problem are coming from.

Here's my question. On the coolant temp sensor for the 16-vlv has two leads. When the leads are pulled during idle the car should stumble & the idle should act weird.

When I pull mine the idle stays constant. I looked at the schematics for these leads. Both green wires, one w/ a red trace & the other black. Apparently there are four (X48) diodes soldered in somewhere on these wires. I am assuning that one is the R/16 and the other three I am unsure of...

With a failed diode in line would it be possible to be getting feedback through the diode which in turn would cause incorrect signals to each unit?

__________________
1994 E500 (MY SUNDAY DRIVER)
1993 190E SPORTLINE LE W/ M104 SWAP
1997 C230
2002 ML320
2000 BMW 528I (WIFEY'S CAR)

"Excuses are crutches for the unfounded."