Throttle assembly i have a 1988 Honda civic 3 door 1.5l .the spring on the throttle housing shaft broke .i have another one but i am unable to find out how many times to rotate the spring witch attaches to the throttle plate that the cable is attached to and where do i clip the end that goes to the throttle plate.

It has but one main injector, it is located in the throttle body under the air cleaner. This system is called "Throttle Body Injection"

You probably need to replace the temperature sensor. It is located on the intake manifold, below the thermostat housing.
murf427

http://www.autozone.com has a free online repair guide for your car. You can use it to
enlarge stuff like the JPEG images below, and get detailed instructions.



1988-91 Honda Civic Sedan (4-door) Dashboard Assembly Removal



1988-91 Honda Civic - non-sedan Dashboard Assembly Removal.

Behind the glove box. Please see my tip at http://www.fixya.com/cars/r6234839-doesn_t_heater_or_air_conditioner_blow . These are generic instructions. If you get stuck, please get back to me.

See instructions from autozone.com below.

REMOVAL & INSTALLATION

With Air Conditioning
See Figures 1, 2 and 3

1. Disconnect the negative battery cable.
2. Remove the glove compartment door and glove compartment.
3. Disconnect the blower motor wires from the blower motor resistor.

Fig. Fig. 1: Disconnect the blower motor wires from the blower motor resistor-1988 Escort

1. Loosen the instrument panel at the lower right-hand side prior to removing the motor through the glove compartment opening.
2. Remove the blower motor and mounting plate from the evaporator case.
3. Rotate the motor until the mounting plate flat clears the edge of the glove compartment opening and remove the motor.
4. Remove the hub clamp spring from the blower wheel hub. Then remove the blower wheel from the motor shaft.

Fig. Fig. 2: Unbolt the mounting plate from the case

Fig. Fig. 3: The motor can now be removed from the case

To install:

1. If removed, assemble the blower wheel to the motor shaft and install the hub clamp.
2. Install the motor and blower wheel assembly.
3. Secure the instrument panel at the lower right-hand side.
4. Connect the blower motor wires at the blower motor resistor.
5. Install the glove compartment door and the glove compartment.
6. Connect the negative battery cable.
7. Check the system for proper operation.

Without Air Conditioning

1. Disconnect the negative battery cable.
2. Remove the air inlet duct assembly.
3. Remove the hub clamp spring from the blower wheel hub. Pull the blower wheel from the blower motor shaft.
4. Remove the blower motor flange attaching screws located inside the blower housing.
5. Pull the blower motor out from the blower housing (heater case) and disconnect the blower motor wires from the motor.

To install:

1. Connect the wires to the blower motor and position the motor in the blower housing.
2. Install the blower motor attaching screws.
3. Position the blower wheel on the motor shaft and install the hub clamp spring.
4. Install the air inlet duct assembly and the right ventilator assembly.
5. Connect negative battery cable.
6. Check the system for proper operation.

probably a vacuum leak check all vaccum tubes going to intake assembly. Also look at throttle body plate with intake tube off and make sure it is closing all the way.

https://itstillruns.com/replace-civic-heater-core-5731244.html
Remove the center console from the interior of the vehicle using the screwdriver. Remove the gear shift knob and disconnect the heat switch connectors (which should just pull out of the switches); front power accessory port and rear power accessory port (which should just pull out of the socket connectors); and illumination power cables (which should simply un-clamp by hand with squeeze connectors).
Remove the lower dashboard panels, driver glove box and center storage pocket using the screwdriver.
Carefully remove the airbag assembly from the steering wheel and the passenger side. The airbags are held in place with spring clamps, which will pop open with mild pressure. Be careful to not apply too much pressure--even a discharged airbag may still deploy if too much shock is applied.
Separate the steering column assembly from the dashboard unit by moving the column to the fully up position. Use a piece of heavy tape to secure the shaft sliding cover onto the steering column while it is removed.
Remove the hoses by opening the spring hose clamps using the vise grips. Remove all remaining wires. Remove the harnesses and retainer bolts using the Phillips screwdriver. Remove the connectors, air bag control computer and center lower covers by squeezing open the hand squeeze clamps. (This may require the assistance of another person.)
Lift the dashboard out slowly and remove it from the vehicle by sliding it out of one of the doors.

I have the same car and its the idler sensor. No big deal unless rev's past 2 grand

find your cable that goes to your throttle body and look for a screw on a fixed plate, the screw should be touching a cam leaver for the throttle butterfly. if the is no screw it may have rattled out and you may have lost it. Or the idle is done by the computer i in the case you may have a fuilty sensor or computer.

the fuel filter on this vehicle is going to be on the firewall just under the windshield. it will have 2 or 3 hoses connected into it, and should be connected to the mount with a hose clamp.

yeah i do have the same problem..........before. Yes its that throttle nagle sensor. you have to replace the whole throlle body cause the sensor is not a bolt on part.....goodluck!