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Discussion Starter #1
Hey guys,
Just out of the blue my 92 600SEL refuses to start. The engine cranks but it doesn't fire when I try to start it. The Palm scanner didn't reveal any useful codes and gave me some with "no descriptions". Any ideas what to look for and where to start troubleshooting? Thanks for your help in advance.
 

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If you want to diagnose it yourself, you need to figure out if it's not getting either fuel or spark, then go from there. What are the numbers for the trouble codes, we might be able to retrieve some descriptions for you.
 

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Discussion Starter #3
Well, it turned out that I have both sparks and fuel but still not starting. Here are the codes, any help apprciated.

DM: code 06, Idle speed control incorrect, fault from EA/CC/ISC
DM: code 05, EGR incorrect, fault from fuel control system
SPS: code 30, no description
SPS: code 32, no description
RST: code 36, 37, 40, no descriptions
CF: code 36, control unit defective (N57)
CF: code 37, volt too low (9v) (t.30E F4-11)
CF: code 40, power supply terminal, 30B, control unit
 
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