How do I dis-assemble the air conditioner ducts?

the sensor is part of the throttle body and not replaceable here is the throttle body replacement instructions as you will have to replace the entire throttle body it is a very common issue with these
THROTTLE BODY ASSEMBLY REPLACEMENT

REMOVAL PROCEDURE

1. Remove the air cleaner intake duct.

1. Disconnect the electronic throttle control (ETC) electrical connector (1) from the throttle body (2).

1. Remove the heater pipe nut at the throttle body.
2. Remove only the heater inlet pipe.

1. Remove the nuts and the bolts from the throttle body.
2. Remove the throttle body assembly.
3. Remove the throttle body gasket.
4. Clean and inspect the throttle body gasket mating surfaces.

NOTE: Do not use solvent of any type when cleaning the gasket surfaces on the intake manifold and the throttle body assembly, as damage to the gasket surfaces and throttle body assembly may result.

Use care in cleaning the gasket surfaces on the intake manifold and the throttle body assembly, as sharp tools may damage the gasket surfaces.

INSTALLATION PROCEDURE

1. Install a new gasket, if necessary.
2. Install the throttle body assembly.
3. Install the throttle body nuts and the bolts.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the nuts and the bolts to 10 N.m (89 lb in) .

1. Install the heater inlet pipe.
2. Install the heater pipe nut to the throttle body.

Tighten the nut to 25 N.m (18 lb ft) .

1. Connect the ETC electrical connector (1) to the throttle body (2).
2. Install the air cleaner intake duct.

3.1L Engines - 1988-94 VEHICLES
(see Figures 5, 6, 7 and 8)

1. Remove the air cleaner and duct assembly.
2. Disconnect the negative battery cable.
3. Raise and safely support the vehicle.
4. If equipped with an engine oil cooler, drain the engine oil, remove the oil filter and position the hose next to the starter motor to the side.
5. Remove the nut from the brace at the air conditioning compressor, nut from the brace at the engine and the brace.
6. Unfasten the retaining bolts, then remove the flywheel inspection cover.

Fig. 5: Unfasten the retaining bolts ...

Fig. 6: ... then remove the flywheel cover

1. Remove the starter bolts and shims, if equipped. Do not let the starter hang from the starter wires.
   

Fig. 7: An extension may be needed to access the starter mounting bolts

Fig. 8: Remove the starter motor and any shims that may have been used

1. Detach the starter wires from the solenoid, then remove the starter from the vehicle.
   

To install:

1. While supporting the starter, connect the starter wires at the solenoid.
2. Install the starter motor-to-engine mount with the shims, if equipped, and the mounting bolts. Tighten the bolts to 32 ft. lbs. (43 Nm).
3. If equipped with an engine oil cooler, reposition the hose next to the starter motor, install the oil filter and refill the engine with the proper amount of engine oil.
4. Install the flywheel inspection cover and tighten the bolts.
5. Install the starter support brace to the air conditioning compressor and tighten the nut to 23 ft. lbs. (31 Nm).
6. Carefully lower the vehicle, then connect the negative battery cable.
7. Install the air cleaner and duct assembly.

Hope helps.

Hi, the first thing you will need to do is disconnect the battery cable. then take a wrench and release the tension on the serpentine belt by using the wrench to turn the tensioner to release the tension. From expirience i would draw a diagram of the belt routing before removing it. after the belt is removed you will need to remove the power wire from the back of the alternator by removing the nut that holds it on, then remove the connector from the side or back. there are three bolts holding the alternator to the engine. they should be a 15 mm or a 13 mm. assembly is reverse of removal. good luck

Deluxe Hi-Lo Heater

1. Disconnect the battery cable, remove the carburetor air cleaner and partially drain the coolant system.
   
2. Remove the heater hoses from the heater core.
   
3. Remove the glove box liner and remove the register duct by pulling from the instrument panel register and releasing the clip at the plenum.
   
4. Disconnect the right cowl outside air inlet vacuum hose from the outside/recirculating door vacuum motor.
   
5. Remove the rear housing from under the instrument panel. Remove the outside air inlet duct from the rear housing (4 nuts and 1 bolt) and install one upper nut to retain heater housing-to-dash after rear housing is removed.
   
6. Remove two screws retaining plenum-to-dash (above transmission tunnel) and two screws to heater housing and remove the plenum.
   
7. Install a piece of protective tape on A-pillar inner cowl panel, at lower right corner of instrument panel.
   
8. Remove the lower right instrument panel-to-A-pillar bolt to hold the panel in the rearward position.
   
9. Remove the heater core (3 screws retaining 2 plates).
   
10. Remove the temperature blend door (snaps off).
    
11. Remove the temperature blend door arm support (2 screws) and pivot arm retainer (1 screw).
    
12. Remove blower motor (2 screws) and remove blower wheel.
    

To install:

1. Transfer blower to blower motor and panel assembly.
   
2. Install door arm pivot retainer (1 screw) and door arm support (2 screws).
   
3. Install the temperature blend door (snaps on).
   
4. Install heater core.
   
5. Install the plenum (4 screws).
   
6. Connect blower wires.
   
7. Remove heater housing upper retaining nut and install the heater outlet (4 nuts and 1 bolt). Position the air inlet duct.
   
8. Connect the white vacuum hose to the outside/recirculating door vacuum motor.
   
9. Reposition the instrument panel, install the retaining bolts and remove the protective tape at the A-pillar inner cowl panel, lower right corner of instrument panel.
   
10. Install the right register duct assembly and install the glove box liner.
    
11. Connect heater hoses to the heater core assembly.
    
12. Fill cooling system, install the air cleaner and connect the battery cable to the battery.
    
13. Check blower motor operation.
    

2.0L (VIN N) & 2.3L (VIN Z) Engine

1. Before servicing the vehicle, refer to the Precautions Section.
   
2. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Upper alternator mounting nut
     
3. Raise and support the vehicle.
   
4. Remove the accessory drive shield.
   
5. Release the tension and remove the accessory drive belt from the alternator pulley.
   
6. Release the two air intake tube retainers and remove the air intake tube assembly.
   
7. Remove and discard the generator B+ cable nut and disconnect the B+ cable.
   
8. Remove or disconnect the following:
   
   • Alternator electrical connector
     
   • 2 alternator nuts and bolts
     
   • Engine roll restrictor mount bolt
     
9. With an assistant, position the engine forward and remove the alternator from its mounting.
   
10. Remove the lower air duct and remove the alternator.
    
11. Remove the radial adapter (B+ connection extension).
    

To install:
Install or connect the following:

• Radial adapter to the alternator
  
• Lower air duct
  
• Alternator; tighten the 2 bolts and nuts to 35 ft. lbs. (48 Nm)
  
• Alternator electrical connector
  
• Alternator B+ cable and new nut
  

1. Reposition the engine. Tighten the engine roll restrictor mount bolt to 35 ft. lbs. (48 Nm).
   
2. Install or connect the following:
   
   • Air intake tube and retainers
     
   • Accessory drive belt
     
   • Accessory drive belt
     
3. Lower the vehicle.
   
4. Install the alternator upper mounting nut. Tighten to 35 ft. lbs. (48 Nm).
   
5. Reconnect the negative battery cable.
   

This is a job that will take a lot of motivation for even someone that is used to working on this stuff. All the items that need servicing is under the dash. You'll have to disassemble all the duct work to get at this core. There is nothing really technical about it, you just have to remember how it all goes back together. Have your digital camera ready and take pics of each dis-assembly step. You really should invest in a repair manual that spells out the steps too.

1981-87 Models

1. Disconnect battery ground cable.
2. Discharge A/C system and disconnect refrigerant and heater lines from unit.
3. Move shift levers away from dash.
4. Remove right side cowl trim panel, if equipped.
5. Remove 4 screws at base and remove glove box.
6. Remove brace through glove box opening and remove ashtray.
7. Remove right half of lower reinforcement (7 screws to instrument panel and 1 to cowl side of trim panel).
8. Disconnect radio ground strap.
9. Remove right upper air duct by removing mounting screw and pulling duct out through glove box opening.
10. Remove instrument panel center brace and right instrument panel cluster pivot bolt.
11. Remove instrument panel cluster, disconnect shift indicator cable and lower steering column.
12. Remove steering column studs and radio.
13. Remove scoop connecting heater to center distribution duct (2 screws).
14. Remove center distribution duct by pulling bottom of dash out to gain clearance.
15. Remove floor air distribution duct.
16. Disconnect temperature control cable through glove box.
17. Remove 7 retaining nuts from firewall and screw that retains assembly to cowl side sheet metal.
18. Flex dash out and remove heater assembly.
19. Remove nuts from door arms and remove door arms.
20. Remove 7 screws to remove cover from housing.
21. Remove evaporator core.
22. Reverse procedure to install.

This is the same for many years. I will send this in 2 post it is to long. Hope this helps you. From the '00 Rodeo workshop manual:

Cylinder Head Assembly
Removal
1. Disconnect battery ground cable.
2. Disconnect connector of intake air temperature
sensor from intake air duct.
3. Remove PCV hose from air intake duct.
4. Remove nut from air intake duct bracket and loosen
hose clamp on throttle body. Remove air intake duct
assembly with air cleaner cover.
5. Remove intake air duct bracket from cylinder head.
6. Drain engine coolant.
7. Move drive belt tensioner to loose side using wrench
then remove drive belt.
033RW001
8. Remove radiator upper hose from engine side.
9. Remove four nuts of exhaust front pipe.
10. Remove three bolts from generator bracket then
remove the generator with brackets.
065RW025
11. Disconnect crankshaft angle sensor connector.
12. Disconnect knock sensor connector.
13. Remove heater hose from adapter side.
14. Remove heater hose from water pipe side.
15. Remove water hose between water pipe and throttle
body.
16. Remove fuel pipe joint eye bolts from fuel rail
assembly and remove fuel pipe bracket with electric
ground cable.
042RW001
17. Disconnect connector for evaporation valve.
18. Remove canister hose.
19. Remove fixing nut of intake manifold stay from
cylinder block side.
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20. Remove two bolts from intake manifold for water pipe
support and remove cylinder head assembly.
21. Remove engine harness cover and disconnect three
connectors from chassis harness on left rear side
engine compartment.
22. Disconnect connector for power steering pump
pressure switch.
23. Remove four bolts and remove crankshaft pulley.
ENGINE MECHANICAL (X22SE 2.2L) 6A–23
020RW014
24. Remove two bolts and nut then remove timing belt
front cover.
25. Remove ventilation hose from cylinder block side and
from cylinder head side.
26. Remove two bolts, ignition cable cover and remove
ignition cables from spark plug.
27. Disconnect camshaft angle sensor connector.
28. Remove ten bolts and remove cylinder head cover.
29. Remove fixing bolt of timing belt tensioner then
remove timing belt tensioner.
020RW010
30. Remove timing belt.
CAUTION:

Do not bend or twist belt, otherwise its core could
be damaged. The belt should not be bent at a
radius less than 30 mm.

Timing belt drive gear counterhold with J–42620.

Do not allow oil or other chemical substances to
come in contact with the belt. They will shorten
the life.

Do not attempt to pry or stretch the belt with a
screw driver or any other tool during installation.

Store timing belt in cool and dark place. Never
expose the belt direct sunlight or heat.
31. Remove two idle pulleys, the left side with idle pulley
bracket.
32. Remove two bolts and stud bolt and remove timing
belt rear cover.
33. Remove camshaft angle sensor
34. Disconnect engine oil pressure switch connector.
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35. Remove camshaft assembly exhaust side.
36. Use J–42623 to remove ten cylinder head fixing bolts
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6A–24 ENGINE MECHANICAL (X22SE 2.2L)
Installation
1. Put cylinder head gasket on the cylinder block.
012RW011
2. Install the cylinder head assembly, tighten cylinder
head bolts by four steps tightening method in the
following sequence to the specified torque.(use
J–42623)
Torque: 25 N·m (18 lb ft) + 90
+ 90
+ 90

012RW006
3. Install camshaft assembly exhaust side and tighten
camshaft bracket bolts in the sequence to the
specified torque.
Torque: 8 N·m (5.9 lb ft)
015RW014
4. Connect engine oil pressure switch connector.
5. Install camshaft angle sensor.
6. Install the timing belt rear cover and tighten three
bolts to the specified torque.
Torque
M6 bolt: 6 N·m (4.4 lb ft)
M8 bolt: 8 N·m (5.8 lb ft)
020RW012
7. Install left side idle pulley with idle pulley bracket,
tighten to the specified torque and install right side
idle pulley and tighten to the specified torque.
Torque: 25 N·m (18 lb ft)
ENGINE MECHANICAL (X22SE 2.2L) 6A–25
020RW016

1. Disconnect the negative battery cable.
2. Remove the glove box.

Fig. 1: The blower motor assembly is secured to the right side of the dashboard

1. Remove the duct between the blower and heater box.
2. Unplug the wiring connector and the vacuum hose from the blower.
3. Remove the three mounting bolts and remove the blower assembly.
4. Install in reverse order, tightening the mounting bolts to 7 ft. lbs. (10 Nm). Make certain the blower mating surfaces are tightly sealed. Install the blower duct; make certain there is no leakage at its joints.

1990-93 Accord
See Figures 2, 3 and 4

1. Disconnect the negative battery cable. If so equipped, disable the Supplemental Restraint System (SRS).
2. Remove the glove box.
3. Remove the glove box frame (lower support)

Fig. 2: Remove the glove box and frame

1. If not equipped with air conditioning:
   1. Remove the three screws and remove the heater duct.
   2. Remove the blower mounting nuts. Unplug the wiring from the blower motor, resistor and recirculation control motor, then remove the blower assembly.
2. If equipped with air conditioning:
   1. Lift the carpet in the passenger compartment. Remove the side cover (kick panel).
   2. Remove the control unit bracket nuts; unplug the five connectors and remove the control unit bracket.
   3. Remove the retaining band, then remove the blower lower covers. Do not break the tabs on the lower covers.
   4. Remove the retaining nuts and remove the blower assembly.

Fig. 3: Air conditioned models require the removal of the control unit. Handle it carefully Fig. 4: Remove the lower covers from the blower unitTo install:

1. Install the blower unit and tighten the retaining nuts.
2. On air conditioned vehicles:
   1. Install the lower covers and the retaining band.
   2. Install the control unit bracket and carefully engage the wiring connectors to their proper location.
   3. Install the kick panel and reposition the carpet.
3. Connect the wiring to the blower assembly. For non-air conditioned vehicles, install the air duct and tighten the screws.
4. Install the glove box frame and install the glove box. Note that some of trim on the frame is held with 2-sided tape; replace the tape when reassembling as necessary.
5. If applicable, enable the SRS.
6. Connect the negative battery cable.