Oil Pressure Gauge Not Working
#37
In my opinion it's more likely that they are fine and it's just the electrical connections... which is what the others are mostly suggestin also.
The sensors don't 'send' codes BTW, when the ECU detects a fault it's usually it detects lack of continuity on a circuit, or incorrect resistance (same thing really)
The S4 is very primitive and basically just checks for continuity on the ECU integrated engine components, but the S5 does more checking on the expected resistance ranges, and on more of the components including the emissions junk.
So it's likely you have wiring problems, faulty connections, or bad grounds... just check all that stuff out and you'll probably find a number of things.
The sensors don't 'send' codes BTW, when the ECU detects a fault it's usually it detects lack of continuity on a circuit, or incorrect resistance (same thing really)
The S4 is very primitive and basically just checks for continuity on the ECU integrated engine components, but the S5 does more checking on the expected resistance ranges, and on more of the components including the emissions junk.
So it's likely you have wiring problems, faulty connections, or bad grounds... just check all that stuff out and you'll probably find a number of things.