I’ve got a 2002 Ford ranger edge 3.0 v6, and it’s throwing fits on me. Here lately it’s been jerking bad going at highway speeds 60 mph, it’s only when it hits 2000 rpms or below. And my oil pressure gauge goes crazy when I get off the freeway, and I’ve changed the oil pressure sensor. Leads me to think that it’s a camshaft synchronizer, I’ve read reviews on not to buy a cheep one and they can ruin a engine if a cheep one fails, if anyone has any idea on what could be happening I would appreciate the help.

ive also changed the injectors on 5 and 6, and all plugs and wires have been replaced. Throws codes misfire on 5 and 6, and shows that I’m running rich on both sides.

 

What did the old spark plugs look like for 5 and 6?

I would start with compression test just to take that off the table or you will be wasting time and MONEY on non-fixes if it is a compression issue
Remove all spark plugs first, then test each cylinder, write it down
3.0l Vulcan engine should be about 160psi, but varies by gauge and battery volts(cranking speed)
What you are really looking for are lower pressures, probably in 5 and 6, than the average of the other 4

Rich running on BOTH banks, 1 and 2, can be a failed fuel pressure regulator in the gas tank on a 2002 Ranger
Test fuel pressure, there is a test port on the engine, 60psi is spec'ed, without regulation the pump can go as high as 90psi
"Rich codes" don't mean the engine is actually running Rich
If you get smoke out the tail pipe then engine is actually running Rich, lol
Rich code means the computer is opening injectors for LESS time than it calculated, so either there is LESS AIR than reported or MORE fuel is flowing in than expected
Ranger have no fuel pressure sensor, so computer just expects 60psi and bases all calculations on that

 

The jerking on the highway sounds like the same symptoms I had with my 2002 Ford ranger edge 3.0. It was the Camshaft Synchronizer. I replaced it with the cheapest one I could find. 2 years now no problems.