94 3.0 vs 97 3.0 questions

[mtnrgr]

My 94 3.0 ranger i owned for 31 years, and i no longer have that truck. That truck being obd1, and i now own a 97 3.0 ranger and it being early obd2.

It's been a long time since I have messed with an obd2 vehicle. I'm old school as I loved my 94 obd1 ranger. Other than more pin outs on the ecm and extra wiring, are there any real difference between the obd1 and early obd2 systems?

With this 97 ranger now having 82,000 original miles. Is there a mileage preference to have them cam sensor and assembly replaced? I learned about the symptoms thru the years, yet don't remember much these days. If someone can educate me again I would appreciate it.

I do remember these cam failures that killed the engine was more common with 98-00 3.0 rangers. Don't remember about 95-97 3.0 rangers. Any assistance is appreciated. I definitely do not want to have to replace the engine due to that issue. The cam sensor looks to be the original part from 97.

 

[bobbywalter]

the biggest difference between obd1 and 2 is tunability. which for most is unnecessary.

when I say that I don't mean what most would think either. it would have a charcoal canister at most left in the tune.

but you can't do that. i would change the coolant and differential and trans fluids and have a cam sensor in the tool box and just drive it.

 

[bobbywalter]

i use a similar methodology.