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Unicarriers (& Nissan) P1D1A15LQ:
Error Code E25

I have an error code which keeps appearing on a customers truck which I look after, I believe it is O2 Sensor signal fault, anybody have any advice on this? New sensor, wiring fault anything common?

Cheers.

• Posted 22 Jun 2022 01:56
• Discussion started by Dwain
• Hereford, United Kingdom

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I am not real familiar with that truck but would bet that the computer is seeing a rich or lean condition at times.look at live data make sure the 02senser is switching and not stuck or lazy also make sure the heater is working also if you have a 5gas exhaust emission machine check the tail pipe this will tell if you are running rich or lean might have vac leak or converter for propane that is going bad. good luck

• Posted 27 Jun 2022 01:30
• Reply by Scott_
• Pennsylvania, United States

Scott

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