The smog pump is ugly and takes up valuable room on the left side of the engine. It also can effect the functioning of the TBI injection if it doesn't work. If the O2 sensor can't tell the pump is sending air, the computer will compensate the mixture. The pump has to stay and be operational!
The 4.3 TBI pump is hooked to the double solenoids by various pieces of formed hose. The pump outlet points the wrong direction when positioned in the serpentine bracket.
The fix was to remove the G body outlet and replace it with a F body outlet. The F body piece is solid rather than a bunch of angled hoses. The F body piece puts the solenoid right next to the heater case, so it had to be bent upwards a bit. In a V8 configuration, the whole thing would sit a few inches forward. I have a 4.3 V6. The hard plastic outlet where the solenoid bolts to the F body piece has to be cut flush. Otherwise, the existing solenoid leads are long enough to plug in. The rubber tubes off the downstream pipe and the cylinder head pipe will hookup with a bit of bending.
The really ugly part of this is that with the a/c compressor, the F body smog pump bracket and solenoids, best of luck getting to the passenger side spark plugs!!
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