I need a vacuum routing diagram for 93 Honda Prelude Vtech

https://www.autozone.com/diy/repair-guides/honda-accord-prelude-1996-2000-vacuum-diagrams-repair-guide-p-0900c1528003a240

Not only do you have at least eleven vacuum hoses, there are thousands of cars that those eleven hoses might go to. So what good would it do to post the diagram for a Ford F150 if you happen to have a nissan 300Z?

i need the vacume hose routing diagram for a 92 accord

best bet is go to honda tech.com

Hi there:
I suggest check this links, according with the fuel system:
- Fig. 62: Vacuum hose routing-1989 carbureted Prelude (except California)
- Fig. 63: Vacuum hose routing-1989 carbureted Prelude (California)
- Fig. 64: Emission component schematic-1989 carbureted Prelude
- Fig. 65: Vacuum hose routing-1989 fuel injected Prelude


Hope this helps; also keep in mind that your feedback is important and I will appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

The engine and emission control system covered by this information operate on a combination of vacuum and electrical signals; they are extremely prone to malfunctions due to improper vacuum connections. If a component does not receive vacuum at the correct time, it cannot function when needed. When working under the hood, pay close attention to the routing and placement of every hose.



Fig. 1: The vacuum hoses are usually numbered for easy identification



Fig. 2: Vacuum hose routing-1984-85 carbureted Prelude





Fig. 47: Emission component schematic-1984-85 carbureted Prelude




Hope this helped; TY for using Fixya (remember comment and rated this).

6
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98 ECT Sensor (Engine Coolant Temperature)
defective circuit or unplugged / defective sensor
10
Accord Civic CRV CRX Del Sol Odyssey Prelude
85-98 86-98 97-98 85-91 93-97 95-98 85-98 IAT Sensor (Intake Air Temperature)
defective circuit or unplugged / defective sensor
16
Accord Civic CRV CRX Del Sol Odyssey Prelude
90-95 88-95 n/a 88-91 93-95 95 88-95 Fuel Injector System
defective circuit or unplugged / defective fuel injector

check your wiring for dirty connections or broken wires, you may have wires that are rubbed through or connectors that are not making full contact. you will need an ohm meter and check wires for continuity. a wiring diagram will be needed.

These are a vacuum line nightmare. I take it the diagram isn't still on the bottom of the hood?

There's no such thing as a timing belt diagram.

Do you mean to say the "Procedure" for changing a timing belt in a 92 Prelude?

By asking such a question I can only interpret it as a clear indication that you've never changed a timing belt before.

If this is true, then you don't want to start out or practice on your own car.

Get the car to a pro and have the job done right.

If not true (and you've changed timing belt's in the past)

Then give me the engine size and I'll post the:

"PROCEDURE" for changing the belt in a few hours.

Radiator flushes can cause more problems than fix sometimes. Before you go removing the dash first replace the thermostat if you follow the lower radiator hose to the engine this is the thermostat housing.Remove the three 10mm bolts and the housing should come apart. Make sure you put the thermostat in the right way and not upside down. The larger end with the spring goes in first toward the engine and the little vent should be on top. When you fill it back up with a 60/40 mixture of coolant make sure you open the bleed hole on the thermostat housing to get out any air and tighten when coolant comes out with no air bubbles. Start the car and hopefully the heat is better. If not the heater core is the two coolant hoses on the firewall remove both hoses and check the flow with a water hose put the hose to both sides to get out any debris. If the flow is slow and does not improve you will have to pull out the heater core which means removing most of the lower dash pulling out the evaporator if you have A/C. Make sure you get a manual. Hope this helps.