1987 560 SL wont run
 

the car will start and run for two seconds then die it will restart all day but will not run beyond 2 seconds. the is lots of pressure at the cold start injector but when I crack the nut on any of the injectors there was only a small bit of fuel. the only thing I foun interesting was that I had no power at the throttle position sensor. all the fuses are fine any help would be appreciated thanks

Had similar problems on my W126 SEC all summer that cleared up when I installed a new ignition switch and key tumbler.
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