Mercury 150 Opti dfi 2005 problem It's in guardian mode,

[Reducer]

Mercury 150 Opti dfi 2005 problem
It's in guardian mode, I have a stats computer, 82 oil level sensor circuit, high, active. 123 tps 1 range ,low, active. 104 lake Sea temp circuit, high, active. 131 trim sensor circuit, low, active. 75 fuel level 1circut, high, active. 133 power 1volts 5vdc, low active.124 tps 1 no adapt, active. I replaced the computer, still getting the same codes, power relay is new

[EuropeanAM]

Your 2.5L Optimax is covered on the next forum down. Be sure to provide the Serial Number when posting.

TPS Range Low, TPS 1 No-Adapt, and Power-1 Volts Low are the faults to focus on.

The others are likely "ghost" faults.

Unplug the TPS, cycle key OFF for 10 seconds, then back ON. See if you get the Power-1 Voltage Low fault again (you will get a TPS fault).

If the Power-1 Volts Low fault does NOT return, odds are pretty high that the TPS is internally shorted.