Okiki Olufokunbi Posted April 25, 2014 Share Posted April 25, 2014 Hello. I have a 92 CH613 with an E7 non-etech engine. I am getting a fault code 4-3. I look up the code, and read MPH sensor inactive in one source, but the other source says its a clutch fan output sensor error (or something) like that.Can anyone help to tell me with one it is for my truck, and how to fix it.ThanksOO Quote Link to comment Share on other sites More sharing options...
turckster Posted April 26, 2014 Share Posted April 26, 2014 A blink code 4-3, for v-mac 1 or 2, is mph sensor. The fault is an abnormal frequency or pulse width which means the sensor is out of adjustment. To adjust the MPH sensor, turn sensor in by hand until it contacts, back out one full turn. Torque the jam nut 15 ft/lbs. It might be best, though, to remove the sensor and inspect the tip for damage. If all looks ok then no harm done. Quote Link to comment Share on other sites More sharing options...
Okiki Olufokunbi Posted April 27, 2014 Author Share Posted April 27, 2014 thank you turcksterOO Quote Link to comment Share on other sites More sharing options...
Jcassibry Posted October 27, 2022 Share Posted October 27, 2022 Where is the mph sensor located? Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted October 27, 2022 Share Posted October 27, 2022 Output shaft of trans 1 Quote Link to comment Share on other sites More sharing options...
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