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Pefi tune problem

upnumber6

Extreme
Joined
Jan 3, 2016
Messages
102
Age
35
Location
Winnipeg
Country
Canada
Snowmobile
2007 apex rtx, 2011 apex se
Looking for some help. I have a buddy who got a stage 1 precision tune today from a local dealer around winnipeg(I think he’s on here, if you see this and can give me some pointers would be great). He got home plugged the ecu in and went to start the sled and the dash says low octane and engine temp of 419f and won’t turn over.
Anyone run into this or have some ideas?
 
Last edited:

Looking for some help. I have a buddy who got a stage 1 precision tune today from a local dealer around winnipeg(I think he’s on here, if you see this and can give me some pointers would be great). He got home plugged the ecu in and went to start the sled and the dash says low octane and engine temp of 419f and won’t turn over.
Anyone run into this or have some ideas?

Sounds like a corrupted file. I would call PEFI.
 
Thanks fleecer. Sorry I meant sled just just turns over, won’t fire. Also getting code sd-01
 
It sounds like the flash didn't download properly. This can happen from time to time. Only way to fix is to reflash the ECU.
 
If that can happen it is very poor management of the flashing process. They should be writing, then reading back the flash and comparing checksums. This is standard practice in any software flash process. Could it also be that the erroneous temp reading is causing the software to go into safety mode, locking out the starting process due to overtemp? (false obviously due to poor connection.) I would start with checking all of those connections, looking inside the connector for a bent pin, loose wire, etc...
 
Maybe, but I don't think so. The sensor data for engine temp is an active signal, its not 'in the flash'.
 


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