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I've searched the forum for hours and I can't seem to find a thread that answers my specific situation.
I'm attaching a photo of the valve assembly on the right side by the coil.
The only connection is a y-connector going to a single vacuum hose.
I've got the transmission out right now so I'm looking at the plumbing and wondering if I can just delete the piping and the valves since there is no sensor connected.
One line returns to the EGR I think and that is the only sensor in the whole loop.
I guess the main question is whether there is any value to either leave it or delete it?
Yes, it is part of the emissions control system. Yes, unless you have a way to tune the ECM it is best to leave it in. Sadly, It is not even close to the same as the one on my 5.8 so can't be much help as to hooking it up correctly.
Maybe there is something on youtube, or even check https://www.f150forum.com/f10/
The only tie in is a vacuum supply. No other interaction for two different functions.
Some will say you can eliminate the air injection system with no issues. I tend to agree. If you have to pass a visual inspection obviously the can of worms has to stay.
Those parts have value if you decide not to put them back on your engine.
I bought a diverter valve from a member of this forum when I was putting my '88 5.0 back to it's original configuration.
In Maryland, my year truck doesn't get emissions tested but the parts need to be "present" for mechanical inspection, so I figured they might as well be functional.
The air injection system directs the air from the air pump either out of the system, into the exhaust upstream of the catalytic converter or into the tube at the catalytic converter; on my engine.
It has a line going to the EGR so it's tied into it.
It's a mess of pipes and valves that seem to just dump into the catalytic converter.....just wondered if it's necessary or some EPA nonsense
No. The only thing those two systems share is a vacuum source.
Correct. The air injection system dumps air into the converter to help it get up to operating temperature quicker. It is necessary for the converter and it was a result of government regulations.
No. The only thing those two systems share is a vacuum source.
Correct. The air injection system dumps air into the converter to help it get up to operating temperature quicker. It is necessary for the converter and it was a result of government regulations.
but it's 100% AOK for the worlds largest polluter to spew particulates non-stop 24X7 into the atmosphere....we all know who that is.
