1996 M120 Engine Starts and Dies
 

Gentlemen.

I am attempting to start an M120 engine for the first time. This engine was just installed into a 107 chassis. The engine and electrical harnesses and computers form a 1996 SL600 were installed into this 1986 560SL chassis. Friday was the first time this engine ran at all in over a year.

The computers installed are 2 ME ECUs. Basic module, Trans ETS, and ESP.
All engine wiring to computers is complete.
All transmission wiring is complete.
All ESP components except for computer and harness are NOT installed.
All four vehicle wheel speed sensors are electrically connected but NOT installed.
Evaporative Emission purge valves and system are NOT installed.
Brake Assist System (BAS) is NOT connected.
Vehical Accelerometer and fuel pressure sensors are NOT connected
Alternator is NOT electrically connected.
There is NO cooling system at this time.
The starter lockout relay is bypassed.
The Break pedal switch is jumped.

The engine at this time will start and die after about a second. The longer I let it set the longer it will run after started. I got about 2 seconds out of it this mornings first start.

Can anyone tell me what I have missing as minimum requirements for starting this engine.

http://www.peachparts.com/shopforum/showpost.php?p=1864302&postcount=241

1996, had DAS system componets right? What about key authorization?

My understanding of this particular DAS system (Non transponder type) is that If I dident lock the car before I removed the engine, I would have left it in the authorized mode. The DAS module is not installed at this time. But If DAS was holding me back I would not be able to start it at all. It actually starts and runs very nicely for about 1 to 2 seconds. Sometimes I can rev it before it shuts down. The electronic throttles are working. It seams to be improving slowly but steadily. I'm thinking now clogged injectors as the gas used in the car previously is about 2.5 years old and the engine has not been started in 1.5 years. I have purged the fuel lines up to the rail and added 7 gallons of fresh gas with 16oz of Techron.

Thanks for the reply.