abscate wrote: 23 Jan 2019, 12:29 Head up to the sticky which helps locate wiring diagrams, find yours, and start tracing back to from the port.

On ME7 it is fused right off the main power buss, but your 1998 might be different

the sticky?

jantt wrote: 21 Jan 2019, 20:38Fuse ?

I don't know of a fuse for the obd2 port.

No voltage, red to pin 16, black to 4. Nothing.

My OBD2 port used to work and now it doesn't. It is not my scanner because it still works on my wife's escape. Any ideas?

First two pics are the newer ones I installed.

Here are the old cap and rotor and the newer but used cap and rotor...

abscate wrote: 20 Jan 2019, 01:29 Open up the distributor cap and rotor and let's see pictures of inside

Here are the old cap and rotor pics and the newer but used one i installed with newer used wires.

For a 98 v70 xc the fuel pressure regulator is behind the passenger front wheel?

I already jumped the fuel pump relay, and tried an old one I had sitting around.
Haven't tried the distributor cap and rotor yet...
Battery is good, I think 12.2 volts but I will check again.

Update from just driving it into town for about 20 mins...
It definitely seems to be worse when cold. The ...

OK...

So I can't properly diagnose my random rough engine bogging because my OBD2 port seems to be powerless. My Scantool isn't reading, or even turning on. Its not the tool because it used to work on my old 98's in the past and olaso used to work with this car. It still works on my wife's 08 ...

Sure abscate, just updated it.