Well goody for you--If I were 37 again I wouldn't be having this much difficulty doing what should be a "simple" repair..
Ever hear the verse "Judge not--lest ye be judged "?..
Instead of being insulting,you could show a little compassion for a member who's older than you by 20+ years..

....get back to me in 20 years and let me know how you feel ! (if I live that long,which is probably unlikely)..you'll probably sound a lot like me by then..
For your info my spine has been curved since birth,and has always been painful, and held me back as far as attaining my full potential--but that didn't keep me from working a lot of overtime when I was 37,taking a few trucks down to the frame and restoring them--and I always have had athstma too,arthritis in my spine & knees too.
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As time passed my condition worsened,and now I find it difficult to do things I once had little trouble doing as far as working on vehicles and chores around the house..
Since I did this manifold job I've passed blood again,my stomach and intestines have been wounded from years of using NSAID's to relieve pain,and I've had ulcers and ulcerative colitis...
I think I do OK for a guy in my condition..
But I'm unable to do it on a daily basis,or work a "real job"..
Now I'm worried I may end up needing surgery..
If you think those are "excuses",then I'm sorry..
And its not so much I "refuse" to learn how newer vehicles run using EFI and computers--I know their basics and could repair one IF I desired to own one,but I simply dont like trusting electronics in vehicles..
I see what my friend deals with on newer vehicles at his shop,it isn't always a simple "plug in the scanner and replace this sensor" repair..
More often it involves tearing a wiring harness apart to find a failed wire or short circuit,and it takes hours to diagnose and fine the problem..many vehicles he fixes that had wiring problems were "given up on" by several other garages before they got towed in to his place..
The older I get,the more I want "simple" and "easy to fix" again..and seeing how cramped modern engine compartments are,I have no desire to work on anything "newer"..too much complicated electronics for my liking..
I do not drive thousands of miles per year any more,so an older vehicle suits me fine...and most of the ones I now own or have owned,were already pretty rusty when I got them..a few I had that were in above average shape , I let sit too long and rot,but 90% of them needed at least rockers,floor patches and door bottoms before they would pass inspection..most anyone else would not have kept them as long as I have..
That's all I have to say..good day gents...not interested in arguing, or reading more insults pointed my way...life is too short,I have enough to deal with at home,dont need to get it online too..