battery CHEVROLET CAMARO 1982 Repair Guide

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 739
3. Make sure the ignition switch has
been in the OFF position for at least 10
seconds and that all accessories are OFF.
4. Turn the ignition switch ON and the pump will run for about 2 seconds.
Note the system pressure with t he pump running, it should be between
40-47 psi.
The ignition switch may have to be cycled to the ON position more than once to
obtain maximum pressure. It is also norma l for the pressure to drop slightly
when the pump first stops, but it should then hold steady.
5. If the pressure is not as specified, verify that fuel pump operation is
heard in the tank.
6. If fuel pump operation is not heard, inspect the fuel pump relay and
wiring.
7. If fuel pump operation is heard, inspect the filter and lines for restriction.
8. Start the engine and make sure the pr essure decreases about 3-10 psi at
idle.
9. If fuel pressure does not decrease, inspect the fuel pressure regulator
and hose.
10. Disconnect the fuel pressure gauge.
THROTTLE BODY
REMOVAL & INSTALLATION 1. Disconnect the negative (-) battery c able and partially drain the radiator.
2. Remove the air inlet duct and unplug the IAC and TPS electrical connectors.
3. Label and disconnect the vacuum and coolant lines.
4. Disconnect the accelerator, thro ttle valve (transmission control) and
cruise control cables, as applicable.
5. Remove the throttle body attaching bolts, then separate the throttle body from the plenum.
6. Discard the gasket.
To install: 7. Install the throttle body to the plenum using a new gasket. Tighten the \
bolts to specification.
8. Engage the accelerator, throttle valve and cruise control cables, as
necessary. Make sure that the link ages do not hold the throttle open.
9. Connect the vacuum and coolant lines.
10. Install the air inlet duct and plug the IAC and TPS electrical connectors
into their sockets.
11. Connect the negative (-) battery cable and refill the radiator.
12. With the engine OFF, check to s ee that the accelerator pedal is free.
Depress the pedal to the floor and release.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 742

Fig. 3: Throttle body assembly on 5.0L and 5.7L TPI engines
ADJUSTMENTS
IAC VALVE POSITION
The ECM will need to relearn the Idle Ai r Control (IAC) valve position anytime
battery power has been interrupted to it. A scan tool must be used on 3.1L
engines to update the ECM with the corre ct IAC valve position and provide a
stable idle speed. The IAC valve position on others can be reset by starting and
running the engine for 5 seconds, then turning the ignition OFF for 10 seconds.
Start the engine again and che ck for proper operation.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 744
7. Start the engine and che
ck for proper operation.
FUEL INJECTORS
REMOVAL & INSTALLATION
Use care in removing injectors to prev ent damage to the electrical connector
pins and the nozzle. The fuel injector is serviced as a complete assembly only.
Since it is an electrical compon ent, DO NOT immerse it in a cleaner.
2.8L AND 3.1L ENGINES 1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the intake plenum and the fuel rail assembly.
4. Rotate the injector retaining clip to the unlocked position and remove the
injector. Discard the O-rings and the injector retaining clip.
Different injectors are calibrated for different flow rates. When ordering new
injectors, be sure to order the identical part number that is inscribed on the old
injector.
To install: 5. Lubricate the new O-ri ng seals with engine oil and install them on the
injector. Assemble a new reta ining clip on the injector.
6. Install the injector into the fuel ra il socket with the electrical connections
facing outward. Rotate the retaini ng clip to the lock position.
7. Install the fuel rail assembly.
8. Install the intake pl enum with new gaskets.
9. Tighten the fuel filler cap and connect the negative battery cable.
10. With the engine OFF and the igniti on ON, check for fuel leaks.

Fig. 1: Sectional view of a fuel injector

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 746
5.0L AND 5.7L TPI ENGINES
1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the intake plenum and runners.
4. Remove the fuel rail assembly.
5. Rotate the injector retaining clip to the unlocked position and remove the
injector. Discard the O-rings and the injector retaining clip.
There are two different injector part numbers for the 5.0L and the 5.7L engine.
Do not intermix injectors with different part numbers, as this will result in engine
roughness and excessive emissions. When or dering new injectors, be sure to
order the identical part number that is inscribed on the old injector. However, if a
complete set of injectors is being repl aced, either part number for that engine
application may be used.
To install:
6. Lubricate the new O-ri ng seals with engine oil and install them on the
injector. Assemble a new reta ining clip on the injector.
7. Install the injector into the fuel ra il socket with the electrical connections
facing outward. Rotate the retaini ng clip to the lock position.
8. Install the fuel rail assembly.
9. Install the intake plenum and runners with new gaskets.
10. Tighten the fuel filler cap and connect the negative battery cable.
11. With the engine OFF and the igniti on ON, check for fuel leaks.
FUEL RAIL ASSEMBLY
REMOVAL & INSTALLATION
When servicing the fuel system, be sure to relieve the pressure of the system
and drain the fuel into an approved contai ner. Cap all open fuel lines and plug
any other open passages. DO NO T allow dirt or other contaminants to enter the
system.
2.8L AND 3.1L ENGINES 1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the intake plenum.
4. Clean the fuel rail assembly to pr event dirt from entering the system.
5. Remove the cold start tube at th e fuel rail fitting. Use a backup wrench
on the fuel rail fitting to pr event it from turning.
6. Disconnect the fuel feed and return lines at the rail.
7. Disconnect the vacuum hose at the pressure regulator.
8. Unplug the electrical connectors.
9. Loosen and remove the fuel rail attaching bolts.
10. Remove the fuel rail assembly from the intake manifold.
11. Discard all of the O-ring seals t hat are exposed during this procedure.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 747
To install:
12. Lubricate with clean engine oil, then install the injector nozzle O-rings.
13. Install the fuel rail assembly. Tilt t he assembly to install the injectors.
14. Tighten the fuel rail attachi ng bolts to specification.
15. Engage the injector electrical connectors. Rotate each injector as
required to avoid stretching the harness.
16. Connect the vacuum hose to the pressure regulator.
17. Connect the fuel feed and return lines. New O-rings must be used.
18. Install a new O-ring seal on the cold start tube. Thread the tube nut to the
fitting on the fuel rail. Use a backup wrench on the fuel rail fitting t\
o
prevent it from turning.
19. Temporarily connect the negative battery terminal. a. With the engine OF F and the ignition ON, check for fuel leaks.
Repair as necessary.
b. Disconnect the negative battery cable.
20. Install the intake plenum using new gaskets.
21. Connect the negative battery cable.

Fig. 1: Fuel rail assembly on 2.8L engines

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 749

Fig. 3: Fuel rail assembly on 5.0L and 5.7L engines
5.0L AND 5.7L TPI ENGINES 1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the intake plenum and runners.
4. Clean the fuel rail assembly to pr event dirt from entering the system.
5. Disconnect the fuel feed and return lines at the rail. Use a back-up
wrench to support the fuel rail tube fittings.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 750
6. Disconnect the vacuum hose
at the pressure regulator.
7. Unplug the electrical connectors.
8. Loosen and remove the fuel rail attaching bolts.
9. Remove the fuel rail assembly from the intake manifold.
10. Discard all of the O-ring seals t hat are exposed during this procedure.
To install: 11. Lubricate with clean engine oil, then install the injector nozzle O-rings.
12. Install the fuel rail assembly in the intake manifold.
13. Tighten the fuel rail attachi ng bolts to specification.
14. Engage the injector electrical connectors. Rotate each injector as
required to avoid stretching the harness.
15. Connect the vacuum hose to the pressure regulator.
16. Connect the fuel feed and return lines. New O-rings must be used.
17. Temporarily connect the negative battery terminal. a. With the engine OF F and the ignition ON, check for fuel leaks.
Repair as necessary.
b. Disconnect the negative battery cable.
18. Install the intake plenum and runners. Use new gaskets.
19. Connect the negative battery cable.
FUEL PRESSURE REGULATOR
REMOVAL & INSTALLATION
2.8L AND 3.1L ENGINES
The pressure regulator and the fuel rail are serviced as a complete assembly
only. DO NOT attempt to remove the regulator cove r from the fuel rail.
5.0L AND 5.7L TPI ENGINES 1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the intake plenum and runners.
4. Remove the fuel rail assembly.
5. Remove the rear crossover re tainer and base attaching screw.
6. Remove the rear crossover tube and O-ring from the regulator base.
Discard the O-ring.
7. Remove the pressure regulator bracket.
8. Remove the pressure r egulator base-to-rail screw.
9. Separate the regulator base from the fuel rail, then disconnect from the
fuel outlet tube.
10. Remove the fuel outle t tube O-ring and discard.
11. Remove the regulator bas e-to-fuel rail connector.
To install: 12. Lubricate and install new regul ator base-to-fuel rail O-rings.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 751
13. Lubricate a new outlet tube 0-ring and in
stall it on the end of the tube.
14. Connect the regulator base to the fuel outlet tube, then to the fuel rail.
15. Finger-tighten the base-to-rail screw.
16. Install the pressure regulator br acket. Finger-tighten the screws only.
17. Lubricate a new rear crossover tube O-ring and install it on the end of the
tube.
18. Install the rear crossover tube to the regulator base.
19. Install the crossover tube reta iner and finger-tighten the screw.
20. Tighten all attaching screws to 44 inch lbs. (5 Nm).
21. Install the fuel rail assembly.
22. Temporarily connect the negative battery cable. a. With the engine OFF and the igniti on ON, check for fuel leaks.
b. Disconnect the negative battery cable.
23. Install the intake plenum and runners.
24. Connect the negative battery cable.
IDLE AIR CONTROL VALVE
REMOVAL & INSTALLATION 1. Unplug the electrical connector from idle air control valve.
2. Remove the idle air control valve.
To install: 3. Before installing the idle air contro l valve, measure the distance that the
valve is extended. Measurement s hould be made from the motor housing
to the end of the cone. It should not exceed 28.5mm (1
1/8 in.), or damage
to the valve may occur when installed.
4. On 1985-1992 models, identify the replacement IAC valve as being
either Type 1 (with collar at electric terminal end) or Type 2 (without
collar). If measuring distance is great er than specified above, proceed as
follows:
• Type 1: Use finger pressure to slowly retract the pintle.
• Type 2: Compress retaining spring from valve while turning valve
in with a clockwise motion. Return spring to original position with
straight portion of spring end aligned with flat surface of valve.
On IAC valves that have already been in service, do not push or pull on the
valve pintle. The force required to move the pintle may damage the threads on
the worm drive.
5. Use a new gasket or O-ring and install the IAC valve into the throttle body.
6. Allow the ECM to reset the idle air control valve using the procedure
described earlier in this section.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 753
THROTTLE POSITION SENSOR (TPS)
REMOVAL & INSTALLATION
1. Disconnect the negative battery cable.
2. Detach the electrical connector from the sensor.
3. Remove the attaching screws, lockw ashers and retainers. Some models
use a seal between the throttle body and the sensor, do not lose this! \
4. Remove the throttle position sensor.
To install: 5. Install the throttle position sensor seal, if applicable.
6. With the throttle valve in the norma l closed idle position, install the
sensor on the throttle body assembly. Make sure the sensor pickup lever
is properly located on the th rottle actuator lever.
7. Install the retainers, screws and lockwashers using a thread locking
compound. On models up to 1989, DO NOT tighten the screws until the
sensor is adjusted. Follow the procedures outlined earli er in this section.
COLD START VALVE
REMOVAL & INSTALLATION 1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Remove the intake manifold plenum.
4. Unplug the electrical connection.
5. Clean the fuel rail around the cold start valve tube fitting.
6. Remove the tube fitting from t he fuel rail. Use a backup wrench to
prevent it from turning.
7. Remove the cold start valve retain ing bolt and remove the valve from the
intake manifold.
To install: 8. Use new O-rings and install the valve and bolt.
9. Connect the wiring harness.
10. Connect the cold start tube at the f uel rail. Use a wrench to prevent it
from turning.
11. Install the intake manifold plenum.
12. Connect the negative battery cable. With the engine OFF and the ignition
ON, check for fuel leaks.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 754

Fig. 1: Cold start valve assembly
FUEL TANK

TANK ASSEMBLY
REMOVAL & INSTALLATION 1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure.
3. Drain the fuel from the tank in to an approved container. Use a hand-
operated pump to drain the fuel through the filler neck.
4. Safely raise and support the vehicle.
5. Remove the fuel filler neck shield.
6. Remove the rear axle assembly.
7. Remove the rear portion of the exhaust system.
8. Remove the exhaust heat shield.
9. Clean all the fuel pipes and hoses in the surrounding areas to prevent
contamination of the fuel system.
10. Disconnect the rear fuel feed, fuel return, vapor, and vent hoses at the
fuel sender assembly.
11. Separate the electrical connection.
12. With the aid of an assist ant, support the fuel tank.
13. Remove the fuel tank strap front attaching bolts. Do not bend the straps
as this will damage them.
14. Remove the tank straps and the fuel tank.
To install: 15. Hook the rear end of the fuel t ank straps into the underbody bracket.