Hi Dave,

I agree with your summations as well.
You have better explanations to the intermittent problems he is having.
The components I mentioned with the FPR, oxygen sensor and TPS do not normally fix themselves.

The idea of the left hand turning versus a right hand turn is largely the turning radius inertia involved.
With the left hand turn the engine block would have more of a tendency to swing away from the left side of the car and therefore pull on the accordion tube and aggravate a split.
Especially in the second half or latter part of the turn as more speed would have been obtained..
Motor mounts are a good possibility in that the engine twists under take off through an intersection.

I have found the smallest split in these hoses to cause the engine to just suddenly falter at idle. Not every time either just enough but enough to aggravate me to investigate the issue.
With this find I tried filling the split with several liquid electrical tape coatings.
I now keep a couple extra hoses stashed from “Junkyard” finds
They are obtainable at reasonable prices still from vendors but Of COURSE, that is depending on what your “reasonable” determination is for a thin but tough plastic part.
They hold up remarkably well considering the years but you have to make sure that they cannot rub up against anything around down there.
I like your idea that the cracks seem to show up on the underside! Vacuum hoses are the same way IMHO.

I have not determined exactly what makes an AMM go wonky.
I have picked up extra AMMs and Injection Labs and Programa (?) have been decent replacements in the past. There maybe others? Some store offer lifetime warranty so I think we’re covered for a while.
Overall it’s my belief that the 240 was the best at meeting all the perimeters of design and cost to produce and maintain a machine, for these many years, that will probably never be repeated.

I truly believe that no cleaner is going to help much if cremation was the only answer the engineers had for a fix. 🤔
As Einstein had stated many times that you cannot destroy matter but it can be changed into something else. Everything in the cosmos is still here or there?
Heat energy is nothing more than the result of oxidation affecting other energies while transferring to another place.

Evidently in the case it has to be a vaporization process for that a second or so.
Yes heat gets to everything eventually and the electronics inside that sealed box is no exception.
My favorite component for changing values are capacitors but why not any junction or connection.
They must have an impurities too.
We see that all the time with harnesses.

Nothing is perfect but we do get very close to our goals it seems despite the current trend to crush and cremate again and again in the millions?
Excuse me, billions of people.
Estimates are 106 billion + are still in this biosphere we call earth.

Only a hundred thousand 240’s left, I guess but with happy souls!

Phil