Thread: 320E (My first Gas MB) Misses and sometimes smokes
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Old 03-01-2010, 12:58 PM
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777funk 777funk is offline
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Quote:
Originally Posted by babymog View Post
If the coil pack fails, the computer is designed to sense no fire in the cylinders, and cut injection / fuel to those cylinders. It does it, I've experienced such, and that is to save the cat plus emissions.

First thing to do is to build / borrow the Arthur Dalton design code reader (around $10 in parts) and read/reset/read the codes. Might be in limp-home mode already and have some issues.

Also, pull the vacuum line from the fuel pressure regulator (driver's side of the head, front of the fuel rail) and see if a ruptured FPR diaphragm is pumping fuel directly into the vacuum line, sounds likely.
Thanks for the reply. The Check Engine light isn't on. I'm assuming that means no codes or that the bulb is burned out. I'll have to turn the key and see if it lights up.

So fuel into the vacuum line... what indicates this is a possibility?
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