Hi
I needed help on 300sl-24 it has a 104 engine with the KE control system and ASR. The car has a low end miss and at high end hold back.
I removed the KE controller now the car drives better the only problem is hard starting in the morning. Which is due to the cold start system not working.
I have checked the firing down to the plugs everything is good.
On the fuel side I have replaced the pumps,filter,injectors,seals.
How do I get to read the diagnostic codes and what do they mean?
On the sensors what resistor readings should I get eg.air intake sensor,TPS?
Can you please give me a list of fault codes and a diagram of the ASR and engine wiring and block flow chart?
How do I make a code reader or is it the same the roof reader with the LED and a switch?
PLEASE HELP?????

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Gareth Brockman