[W126 Coupe] 1988 560 SEC loss of power

[GreyGarageRuss at aol.com]

Thanks for all suggestions to date.  In one case tank was just below  1/4 
and other time "R"eserve light had come on.  I will try to keep it  above 1/4 
all the time.
Perhaps Jonathan could give me the part number for the cut-off and speed  
control relay that Shin mentioned.  This car has about 195,000 KMs (about  
120,000 miles) on it.  I put in new plugs, wires, rotor and distributor cap  
last season (never run it in winter).
I will have to check on the O2 sensor...don't remember when last it was  
changed.  Also will try to get a mechanic to swap out the fuel pump relay  and 
test it out.  (Unnerving to be on the road and not knowing if the next  
time, it will not start again!)
 
Again, thanks to all for your input.
 
Russell
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