I am changing the high pressure power steering hose on a 95 6cyl Cutlass ciera 4dr. Any tricks or tips to make it easier? thinkin bout lifting the engine a couple inches

As far as the pulley, If you get a new pump from a national brand auto store, the new pump may not have a pulley, the store will remove the pulley and install on new pump for you. To remove the pump, take belt off. Remove lines from pump, The return line should be low pressure, probably just hose clamp needs to be loosened. The high pressure line is a threaded fitting, have to use wrench to get it loose. If your going to work on your own vehicles, you need a basic set of tools, as far as wrenches and sockets, standard and metric sizes.
Find mounting bolts for pump, take them loose.
I looked at info for cutlass ciera S, 3.3L engine. Click on the comment link.

Check the two hoses /high and low pressure for leak(s)

I just finished replacing mine.

It is much easier if you do these steps:

1. Remove the serpentine belt.
2. Remove the nuts holding the main fuse box over the battery.
3. Remove the reinforcing bar over the battery.
4. Remove the battery.
5. Remove the windsheild washer tank.
6. Now you have access to remove the pump pulley. Without removing the stuff, it may be possible, but it will be extremely difficult.
7. Remove the pump pulley.
8. Loosen the high pressure hose fitting.
9. Remove the return line clamp.
10. Remove the power steering pump mounting bolts.
11. Remove the high pressure hose fitting.
12. Remove the power steering pump while sliding off the low pressure hose.
13. Remove the clips holding the reservoir on the pump.
14. Remove the reservoir.
15. Install new o-ring on the reservoir.
16. Install reservoir on new pump.
17. Install clips to hold reservoir on pump.
18. Install new o-ring on high pressure fitting.
19. Place new pump in position while sliding on low pressure hose.
20. Loosely attache high pressure fitting.
21. Tighten pump to mounts.
22. Tighten high pressure fitting.
23. Install clamp on low pressure hose.
24. Install power steering pulley.
25. Install washer reservoir.
26. Install battery.
27. Install reinforcing cross member.
28. Install fuse panel.
29. Install serpentine belt.
30. Bleed the power steering system.

high idle is usually a vacuum leak from a hose. Check all your hoses carefully.

The end going to power steering pump is easily accessible, however the end connected to the steering system is not as accessible. You will need an 18mm crows foot wrench and a long extension. Or since the line is being replaced anyway, cut the metal part of the hose as close to the nut that screws into the steering as possible so that you can use a deep-well socket on a two foot extension with a swivel. The steering mechanism is located approximately below your break booster and the high pressure line is the one closest to the fire wall.

Since your cat was replaced you should be looking at fuel problems...even gas cap seal....check fuel pressure,fuel regulator,and evap system.>canister or purge solinoid,o2 senser...high nox is caused by the cat or fuel problems on these engines...high pressure in the combustion chamber...lean condition>air leak on hoses,or high compression caused by carbon build up ...there is no EGR on this car so don't waste time looking for it...hope this points you to your problem

might be expensive to replace the line, might want to periodically add fluid.

If it is a small leak you might be able to wrap it with a rubber hose and apply several clamps to put a band-aid on it. However, this is only temporary at best and could still cause problems depending on where it is leaking. One possible alternative to a new hose - if you take the hose to a shop like The Hoseman (or equivalent) they can rebuild the hose cheaper than buying a new one.

Power Steering Line/Hose: Service and Repair
Pressure Hose
Power Steering Pressure Pipe/Hose Replacement (3.8L)
Removal Procedure
1. Place a drain pan under the vehicle.
2. Remove the accessory drive belt.
3. Raise and support the vehicle. Refer to Vehicle Lifting.
4. Remove the tire and wheel assembly.
5. The power steering pressure hose is the lower hose at the power steering gear.
Remove the power steering pressure hose from the power steering gear.
6. Remove the power steering pressure hose from the power steering pump.
7. Remove the power steering pressure hose from the clamps on the power steering gear.
8. Remove the power steering pressure hose from the vehicle.
Installation Procedure
1. Install the power steering pressure hose to the vehicle.
2. Install the power steering pressure hose to the clamps on the power steering gear.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the power steering pressure hose to the power steering pump.
^ Tighten the fitting to 27 Nm (20 ft. lbs.).
4. Install the power steering pressure hose to the power steering gear.
^ Tighten the pressure hose fitting to 27 Nm (20 ft. lbs.).
5. Install the tire and wheel assembly.
6. Remove the drain pan from under the vehicle.
7. Lower the vehicle.
8. Install the accessory drive belt.
9. Fill the power steering system with power steering fluid.
10. Bleed the power steering system.
11. Inspect the power steering system for leaks.

you have to remove the driver side wheel and splash shield .its a very tight spot to get your arms and hands.if you got 3.1 engine remove the alternator .could help some.