Powerlogger input grounds

[DavzGN]

Probably and easy question but I figured I would check before I do all the connections. For the MAP, Wideband O2, and fuel pressure, it is recommended to ground them to the ECM case or should they be grounded somewhere else?

Thanks
David Last
87GN

 

[TurboBob]

engine ground is best for all sensors.

ecm case is ok, or splice into one of the ECM ground wires.

body grounds are awful.

avoid using the grounds on the PL analog block, as the wiring in the analog cable is really tiny.

Bob