Good eye pappy.
91 pickup 22re, auto, ps,150k running issues when at operating temp
- Thread starter nitroid13
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- Thread starter
- #22
Which vsv is for the fuel pressure, red or white?
On your truck, I don't know what color it is. On my early 22re it's mounted on the rocker arm cover, to the rear near the firewall, under the EGR modulator. Mine is green, and I only have two (AC is the other). On later trucks there was a third VSV added (EGR?). Hopefully somebody with a late 22RE can answer your question.
This is all I have. I've circled the VSV that I think is for the fuel pressure regulator.
- Thread starter
- #25
Well mine did have a black one that broke due to age and partly due to me being too rough. But I do believe the the fpr is also hooked directly to the filter with the charcoal canister. I need to go in and replace all of the vac lines and apparently run them correctly lol. Is there a thread on here detailing vac line routing post egr delete?
At this point I would hook up the charcoal canister to the throttle body, cap the extra three extra ports on the throttle body, cap all three of the ports on the filter, and cap the port on the fuel pressure regulator to keep junk out. Your fuel pressure regulator will still work, but you might have hard start issues when the engine is warm. Realistically, folks have said they didn't have any issues.
- Thread starter
- #27
I really do appreciate the help, more than you know. Does it matter which of the 4 ports on the tb? And I will do the rerouting and capping the places you said
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- #29
What is the function of this part and I noticed that it has an adjustment screw. What is it supposed to be set at? On a side note I have seen people delete this as well. I think it has something to do with the ps pump
That's the A/C idle up valve. Works in conjunction with a solenoid valve. It tee's to the PS switch which also raises idle when you max out pressure
It's has a dual function. As said, using the electric VSV switch it meters air into the plenum to idle up the engine when the AC is turned on. The screw adjusts how much air goes into the plenum and controls the RPM with the AC on.
It also controls the idle up for the power steering. When pressure increases at the PS pump, the pressure switch on the PS pump bleeds air into the plenum to increase the engine RPM when the pump is under load.
Deleting it is silly. Folks automatically think because it has a vacuum hose it must be emissions. It's not. Unless you remove both the AC and PS there is no need to remove it. There is nothing about it that hurts performance.
It also controls the idle up for the power steering. When pressure increases at the PS pump, the pressure switch on the PS pump bleeds air into the plenum to increase the engine RPM when the pump is under load.
Deleting it is silly. Folks automatically think because it has a vacuum hose it must be emissions. It's not. Unless you remove both the AC and PS there is no need to remove it. There is nothing about it that hurts performance.
- Thread starter
- #32
Ok I found this and I don't know how reliable the info is but it would make sense that the black one I thought was to the egr system is actually the ac idle up vsv. The black one on mine is at the back though and the plug is broken and the vsv is as well
- Thread starter
- #33
Ya I don't want to remove Any more than I absolutely have too
Also, they are NLA I'm told. You can adapt one from a different model Toyota if you had to.
On your engine picture it appears you have the AC VSV hooked up, with the gray connector. On the JPG the VSV labeled "blue connector" looks like the one you need for the fuel pressure VSV. AZtoyman is correct, I believe they are NLA.
