07 Sportsman 800 efi Code 51 & 52
#1
I know what the codes are but what would cause both injectors to stop working? I parked it in the garage the other night and the next morning went to load it on the trailer to take it out scouting for Deer season and all it did was roll over. I'll check the fuel pressure tonight but is there anything else to look for. Another thing. What do the 4 fuses protect? I can not find any labels or anything in my book. 5amp? 15amp? 1st 20amp? 2nd 20amp? Thanks
#2
bad / lose connector, blown fuses, bad ecm, no fuel getting to the injectors....
so- what do the codes mean?
so- what do the codes mean?
#4
pull out the efi fuse and check for continuity-
follow eack injector lead back and inspect the connections- unplug and replug the connectors. Look for other lose wires- or wire insulator that might be pinched or rubbing off exposing the copper. Make sure battery connections are tight.
follow eack injector lead back and inspect the connections- unplug and replug the connectors. Look for other lose wires- or wire insulator that might be pinched or rubbing off exposing the copper. Make sure battery connections are tight.
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#8
15 amp fuse is the efi power,5 amp the speedo,20 amp for the chassis,and 20 amp for accessory power. Codes don't always point to the exact cause. Check the fuses along with underneath the fuse block itself for any wires that may have grounded to the frame or loose from the fuse block. OPT
#10
The two four pin relays control the fan and fuel pump/injectors and get power from the ecu.. Just swap relays as they are both the same. If no difference you can rule out the relay as the problem. OPT



