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2000 230 slk limited edition
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Discussion Starter #1
I've lost the supercharger on ny 2000 slk 170. The code P1235 is defined as "fuel pump control out of range" with probable cause as "pump circuit open or shorted" or "faulty fuel pump driver module". After reading this thread I've cleaned the maf, checked the two air valves, re-soldered the K40 board and still no luck.

Any ideas?
 
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