1: Tape them up somewhere
2: It's in failsafe mode and probably running a bit rich, but estimating off the IAT and O2 sensor, don't try to drive it too far like that, you could foul the plugs. Also, are you running it without an air filter?
3: Are you talking about the Condenser/Dryer? If it's the cylindrical one, its the drier, Just chuck it, they aren't worth anything used, and they aren't worth much for scrap
4: If you are dumping the smog controls ditch the Air pump, leave everything else alone. EGR doesn't hurt you any unless it's broken (and it doesn't break that often on those old ones) and despite the statements to the contrary in other places on here EGR helps your highway MPG, same for the cats (except for the MPG thing). Definitely leave the PVC system alone or you can blow out every lower gasket in the engine. If you want more power/economy you might want to think about ditching the P/S setup in favor of manual one.
Charcoal canister doesn't hurt you either, it catches gas fumes that vent from the tank and then releases them into the intake when the computer requests it. I'd put that back in.
I'd also leave the charcoal cannister in place or put it back in.
a 1992 4.0 doesn't have EGR.
I've never seen a 4.0 with either A.I.R (air injection reactor)
or the "smog pump" needed to make that system work.
a gen1 4.0 engine bay is bit close but fairly "Tidy" as such things go
Would I get rid of my A/C system?
Let me put it this way, THE reason I have a 4.0 in my truck
and Not a 2.3 turbo is because I couldn't figuire out an elegant
(and cheap) way to have the 2.3Turbo AND my air conditioning
too.
None of the smog stuff on a 4.0 really hurts performance.
OLD smog stuff as originally mandated by the government did, BUT!!! newer vehicles where the stuff was designed together operates better WITH the smog stuff than it does without it.
there are however exceptions... not that the stuff doesn't work as intended but there are unhappy "Failure modes" that would drive you to pulling your hair out...
Like the 1994 4.0 with SEFI and EGR...
EGR first, the EGR system is not the problem, the problem is the failure prone feedback sensor that tells the computer the EGR is working.... and when it doesn't the computer goes apeshit...
Or SEFI which people think is a great idea, like the injectors NEED to be fired sequentially... odd then that the SEFI 4.0's RARELY get the fuel economy or driveability that the 1990-93 Non-SEFI engines do... add to that the cam position sensor which in general are probably MORE failure prone than the famous TFI module failures...well when the CAM "synchronizer" fails
you'll be tempted to BURN the truck.... INSIDE your attached garage...
I never saw why people thought SEFI was a good thing...
The "Batch fire" of the 2.9's and 1990-93 4.0's was fine...
especially considering that my old Saab runs on Bosch K-Lambda CIS injection... CIS means "Continuous Injection System"
which is primarily MECHANICAL and any time the high presure pump is running all the injectors are constantly spraying a fine mist of fuel..., the Lambda system is a sort of tacked on setup that varies the system pressure with a simple valve (basically another fuel injector with hoses connected to both sides) and that variation is driven by the output of an Oxygen sensor...
Other than getting gummed up or the Oxygen sensor getting fouled the system is too stupid to fail.
And the K-Jetronic system replaced the "D-Jetronic" which is the actual direct ancestor of every vehicle fuel injection system in use today (except for the GDI system used on the New "Ecotech" engines)
If you don't understand things you should leave them alone.
Lastly if you knew what a complete piece of junk the ranger manual steering box was you'd never suggest switching to it.
As bad as the Power steering is the manual steering is worse.
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