[doctorq]

Anyone know how accurate the OEM PIDs/sensors (i.e., water temp, AIT off the MAF, oil pressure, etc)? I know the OEM gauges were dummied-down to basically sit in the middle of the scale, then turn red when things have already gone bad. But do the OEM sensors still communicate accurate info back to the PCM? For example, does the OEM water temp sensor transmit accurate water temp back to PCM, but the dummied-down OEM gauge won't display it.

Just wondering if I invest in an OBDII Scan Gauge (like PLX DM-200, Aeroforce Interceptor, MSD Dashhawk), will these devices be able to pick up accurate water temp, AIT, etc off the OBDII/CAN ? Not sure if I will be required to install new individual sensors and controllers to be able to read/display accurate info. I'll be putting in a separate wideband O2 sensor, controller, and gauge, but was hoping I could get other PIDs off the OBDII/CAN and display those through an iMFD multi-display gauge. Thx.

[stlwagon]

The gauges are really nothing more than idiot lights but the sensors are pretty accurate. I went ahead and installed electrical H2O temp and oil pressure gauges just to be safe.

[doctorq]

Originally Posted by stlwagon

The gauges are really nothing more than idiot lights but the sensors are pretty accurate. I went ahead and installed electrical H2O temp and oil pressure gauges just to be safe.

Mark, did you also install dedicated sensors (water temp, oil pressure) with your aftermarket gauges, or did you tap the OEM PID sensors? Did you do this via the OBDII/CAN ? If you installed dedicated sensors, where did you install? Thx for the feedback.

[stlwagon]

Originally Posted by doctorq

Mark, did you also install dedicated sensors (water temp, oil pressure) with your aftermarket gauges, or did you tap the OEM PID sensors? Did you do this via the OBDII/CAN ? If you installed dedicated sensors, where did you install? Thx for the feedback.

They're off the OEM sensors.