1982 CHEVROLET CAMARO fuel cap

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 364
5. Drain the radiator and remove t
he radiator hoses. Disconnect the heater
hoses and the transmission cooler lines.
6. Remove the upper half of the radi ator shroud, if equipped with a manual
transmission. Remove the radiator and fan shroud assembly, if equipped
with an automatic transmission.
7. Disconnect the throttle linkage, includi ng the cruise control detent cable.
8. Remove the air conditioning compressor and lay aside.
Do not disconnect the air conditioning lines.
9. Disconnect the power steering pump and drain the fluid into a suitable
container. Remove the vacuum brake booster line.
10. Remove the distributor cap and spark plug wires.
11. Disconnect the engine electrical connection at the bulkhead connection
and disconnect any necessary vacuum hoses.
12. Working inside the vehicle, re move the right-hand hush panel and
disconnect the ECM harness at the EC M. Raise and safely support the
vehicle. Remove the right fenderwell splash shield and feed the harness
through the fenderwell.
13. Disconnect the exhaust pipes at the exhaust manifolds and remove
exhaust system from the vehicle.
14. Remove the flywheel cover and remo ve the converter bolts, if equipped
with automatic transmission.
15. Disconnect the transmission an d starter wire connections.
16. Remove the bellhousing and t he motor mount through-bolts.
17. Disconnect the clutch fork return spring, if equipped with a manual
transmission. Lower the vehicle.
18. Relieve the fuel system pressu re. Disconnect the fuel lines.
19. Support the transmission with a suit able jack. Attach an engine lifting
device.
20. Remove the engine assembly.
To install: 21. Position the engine assembly in the vehicle.
22. Attach the motor mount to engine br ackets and lower the engine in place.
Remove the engine lifting device and the transmission jack.
23. Raise and support the vehicle safely.
24. Install the motor mount through-bolts and tighten the nuts to specification. Install t he bellhousing bolts and tight en to 35 ft. lbs. (47
Nm).
25. On vehicles with automatic transmissi on, install the converter to flywheel
attaching bolts to 46 ft. lbs. (63 Nm).
26. Install the flywheel splash shield and tighten to 89 inch lbs. (10 Nm).
Install the clutch return spring, if equipped with manual transmission.
27. Connect the starter wires and the fuel lines.
28. Install the exhaust system.
29. Lower the vehicle.
30. Install the power steering pump and the air conditioning compressor.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 366
8. Remove the air conditioning co
mpressor and lay aside. Remove the
power steering pump and lay aside.
Do not disconnect the air conditioning or power steering lines.
9. Remove the vacuum brake booster line.
10. Remove the distributor cap and spark plug wires.
11. Disconnect the necessary elec trical connections and hoses.
12. Raise and safely support the vehicle.
13. Disconnect the exhaust pipes at the exhaust manifolds.
14. Remove the flywheel cover and remove the converter bolts.
15. Disconnect the star ter wire connections.
16. Remove the bellhousing and t he motor mount through-bolts.
17. Lower the vehicle.
18. Relieve the fuel system pressu re. Disconnect the fuel lines.
19. Support the transmission with a suit able jack. Attach an engine lifting
device.
20. Remove the engine assembly.
To install: 21. Position the engine assembly in the vehicle.
22. Attach the motor mount to engine br ackets and lower the engine in place.
Remove the engine lifting device and the transmission jack.
23. Raise and support the vehicle safely.
24. Install the motor mount through-bolts and tighten the nuts to 50 ft. lbs. (68 Nm). Install the bellhousing bolts and tighten to 35 ft. lbs. (47 Nm).
25. On vehicles with automatic transmissi on, install the converter to flywheel
attaching bolts to 46 ft. lbs. (63 Nm).
26. Install the flywheel splash shield and tighten to 89 inch lbs. (10 Nm).
27. Connect the starter wires and the fuel lines.
28. Install the exhaust pipe on the exhaust manifold.
29. Lower the vehicle.
30. Install the power steering pump and the air conditioning compressor.
31. Connect the necessary wires and hoses.
32. Install the radiator, fan and fan sh roud. Connect the radiator and heater
hoses and the transmission cooler lines.
33. Connect the vacuum brake booster li ne, the throttle linkage and cruise
control cable. Install the distributor cap.
34. Fill the cooling system with the proper type and amount of coolant and
the crankcase with the proper type of oil to the correct level.
35. Install the water pump drive bel t, the air cleaner duct and the hood.
36. Connect the negative battery cable, st art the engine and check for leaks.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 386
FUEL INJECTION

1. Remove the air cleaner.
2. Drain the radiator.
3. Disconnect: a. Battery cables at the battery.
b. Upper radiator and heater hoses at the manifold.
c. Crankcase ventilation hoses as required.
d. Fuel line at the carburetor.
e. Accelerator linkage.
f. Vacuum hose at the distributor, if equipped.
g. Power brake hose at the car buretor base or manifold, if
applicable.
h. Temperature sending switch wires.
4. Remove the distributor cap and scribe the rotor position relative to the
distributor body, and engine.
5. Remove the distributor.
6. If applicable, remove the alternator upper bracket. As required, remove
the air cleaner bracket, and accelerator bellcrank.
7. Remove the manifold-to-head attachi ng bolts, then remove the manifold
and carburetor as an assembly.
8. Mark and disconnect all emission re lated items (e.g.: wiring, vacuum
hoses, etc.) which are connected to manifold mounted items.
9. If the manifold is to be replaced , transfer the carburetor (and mounting
studs), water outlet and thermostat (use a new gasket) heater hose
adapter, EGR valve (use new gasket) and, if applicable, TVS switch(s)
and the choke coil.
To install: 10. Before installing the manifold, thoroughly clean the gasket and sealing
surfaces of the cylinder heads and manifold.
11. Install the manifold end seals, folding the tabs if applicable, and the
manifold/head gaskets, using a s ealing compound around the water
passages.
Make sure that the new manifold gaskets match the old ones EXACTLY.
12. When installing the manifold, care should be taken not to dislocate the
end seals. It is helpful to use a pilo t in the distributor opening. Tighten the
manifold bolts to 30 ft. lbs. (40 Nm) for 5.0L or 20-25 ft. lbs. (27-34 Nm)
for 2.8L in the sequence illustrated.
13. Install the distributor with the rotor in its original location as indicated by
the scribe line. If the engi ne has been disturbed, refer to the previous
Distributor Removal and Installation procedure.
14. If applicable, install the alter nator upper bracket and adjust the belt
tension.
15. Connect all disconnected components at their original locations.
16. Fill the cooling system, start the engine, check for leaks and adjust the
ignition timing and carburetor idle speed and mixture.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 391
8. Remove the plenum attaching bolts and plenum. Discard the gaskets.
9. Remove the fuel rail.
10. Label and unplug the wires
from the spark plugs.
11. Label and unplug the wires at the coil.
12. Remove the distributor cap and spark plug wires.
13. Mark the distributor position and remove it.
14. Label and disconnect the emission canister hoses.
15. Remove the valve covers.
16. Remove the upper radiator hose at the manifold.
17. Unplug the coolant switch and sensor.
18. Remove the heater inlet pipe from the manifold.
19. Remove the center intake manifold bolts.
20. Remove the center intake mani fold and gasket. Discard the gasket.
21. Remove the transmission dipstick.
22. Remove the manifold bolts.
23. Remove the manifold. Discard t he gaskets and remove the RTV sealant
from the front and rear ridges of the block.
To install: 24. Apply a
3/16 in. (5mm) bead of RTV sealant on the front and rear ridges of
the block. Make sure the surfaces are clean.
25. Install the new gaskets on the cylinder heads. Hold the gaskets in place by extending the RTV bead up onto t he gasket ends. Certain GM intake
gaskets will have to be cut to be install behind the pushrods. Cut these
gaskets as required and only where necessary.
26. Install the intake m anifold along with the intake manifold bolts. Torque
bolts in sequence to 13-25 ft. lbs. ( 18-34 Nm) on 2.8L engines and 19 ft
lbs. (26 Nm) on 3.1L engines.
27. Install the center intake manifold with a new gasket. Tighten the bolts to
15 ft lbs. (21 Nm).
28. Connect the coolant switches.
29. Install the upper radiator hose.
30. Install the valve covers.
31. Install the heater inlet pipe.
32. Connect the emission canister hoses.
33. Install the distributor to the matc hmarks, hold down bolt, spark plug wires
and distributor cap.
34. Install the spark plug wires to th e spark plugs and connect the wires at
the coil.
35. Install the fuel rail.
36. Install the plenum with new gaskets . Tighten the bolts to 18 ft lbs. (25
Nm) on 2.8L engines or 15 ft lbs. (21 Nm) on 3.1L engines.
37. Install the A/C compressor-to-plenum bracket and attaching hardware.
38. Install the EGR transfer tube with a new gasket. Tighten the bolts to 19 ft
lbs. (26 Nm).
39. Install the throttle body.
40. Connect the vacuum harness and ai r inlet duct to the throttle body.
41. Install the transmission dipstick.
42. Connect and other rema ining hoses or wires.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 541
EVAPORATIVE EMISS
ION CONTROLS
OPERATION
This system reduces the amount of gasoline vapors escaping into the
atmosphere. Some models em ploy a purge control solenoid which is controlled
by the ECM, to open and close the EE C system. Other models use a canister
mounted vacuum purge valve; when the engine vacuum reaches a certain
pressure, the valve opens allowing the gas vapors to be drawn off to the
carburetor for burning.
Carbureted models use an exhaust tube fr om the float bowl to the charcoal
canister; fuel injected models eliminate the fuel bowl tube (as no float bowl is
used on fuel injection systems). Fuel vapor s from the gas tank travel from the
tank to the vapor canister , where they are collected. Although the system varies
from vehicle-to-vehicle, the operat ions are basically the same.

Fig. 1: Evaporative Emission Cont rol (EEC) System - 2.5L engines

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 640
The tachometer terminal should never
be allowed to touch ground, as damage
to the computer control module and/or ignition coil assembly can result.
CONNECTORS
When disengaging connectors, do not use a screw driver or other tool to release
the locking tab, as this mi ght break the connector.
SYSTEM TESTERS
Instruments designed specific ally for testing HEI or C
3I systems are available
from several tool manufactur ers. Some of these will even test the module itself.
However, the tests given in the followin g section will require only an ohmmeter
and a voltmeter.
TESTING
The symptoms of a defective component within the HEI or C
3I system are
exactly the same as those you woul d encounter in a conventional system.
Some of these symptoms are:
• Hard or no starting
• Rough Idle
• Poor fuel economy
• Engine misses under load or while accelerating
PRELIMINARY CHECKS
If you suspect a problem in your igniti on system, there are certain preliminary
checks which you should carry out befor e you begin to check the electronic
portions of the system. First, it is extrem ely important to make sure the vehicle
battery is in a good state of charge. A defective or poorly charged battery will
cause the various components of the ignition system to read incorrectly when
they are being tested. Second, make su re all wiring connections are clean and
tight, not only at the battery, but also at the distributor cap (if so equipped),
ignition coil, camshaft and/or crankshaft sensors (if so equipped) and at the
control module.
Since the only difference between these ignition systems lies before the spark
plug wiring, it is important to check the secondary ig nition circuit first. If the
secondary circuit checks out properly (ther e is spark), then the engine condition
is probably not the fault of the ignition system. To check the secondary ignition
system, perform a simple spark test. Remove one of the plug wires and insert
some sort of extension in the plug socket. An old spark plug with the ground
electrode removed makes a good extension. Hold the wire and extension using
an insulated tool (NOT BY HAND) about
1/4 in. (6mm) away from the block and
crank the engine. If a normal spark occurs, then the problem is most likely not in
the ignition system. Check for fuel system problems, or fouled spark plugs.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 669
1. Disconnect the pressure gauge. R
un the fuel line into a graduated
container.
2. Run the engine at idle until one pint of gasoline has been pumped. One
pint should be delivered in 30 seconds or less. There is normally enough
fuel in the carburetor float bowl to perform this test, but refill it if
necessary.
3. If the delivery rate is below the mini mum, check the lines for restrictions
or leaks, then r eplace the pump.
CARBURETORS
The V6 engine is equipped with the Ro chester E2SE carburetor, V8 engines
use the E4ME and E4MC. These carburet ors are of the downdraft design and
are used in conjunction with the CCC system for fuel cont rol. They have special
design features for optimum air/fuel mixt ure control during all ranges of engine
operation.
An electric solenoid in the carburetor controls the air/fu el ratio. The solenoid is
connected to an Electronic Control Module (ECM) which is an on-board
computer. The ECM provides a controllin g signal to the solenoid. The solenoid
controls the metering rod(s) and an id le air bleed valve, thereby closely
controlling the air/fuel ratio throughout the operating range of the engine.
MODEL IDENTIFICATION
General Motors Rochester carburetors ar e identified by their model code. The
first number indicates the number of ba rrels, while one of the last letters
indicates the type of choke used. These are V for the manifold mounted choke
coil, C for the choke coil mounted in the carburetor body, and E for electric
choke, also mounted on the carburetor. Model codes ending in A indicate an
altitude-compensatin g carburetor.
Because of their intricate nature and co mputer controls, the E2SE, E4ME and
E4MC carburetors should only be se rviced by a qualified technician.
PRELIMINARY CHECKS
The following should be observed befor e attempting any adjustments.
1. Thoroughly warm the engine. If the engine is cold, be sure that it reaches
operating temperature.
2. Check the torque of all carburet or mounting nuts and assembly screws.
Also check the intake manifold-to-cyli nder head bolts. If air is leaking at
any of these points, any attempts at adjustment will inevitably lead to
frustration.
3. Check the manifold heat control valve (if used) to be sure that it is free.
4. Check and adjust the choke as necessary.
5. Adjust the idle speed and mixture. If the mixture screws are capped,
don't adjust them unless all other c auses of rough idle have been
eliminated. If any adjustments are per formed that might possibly change

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 711
THROTTLE BODY INJECTION SYSTEM

SYSTEM DESCRIPTION
The throttle body injection (TBI) system used on 2.5L (VIN 2) and 5.0L (VIN E)
engines is centrally located
on the intake manifold. Its function is to supply the
correct air/fuel mixture to the engine, as directed by the Engine Control Module
(ECM).
The TBI unit consists of two relatively simple casting assemblies: a throttle body
and a fuel metering assembly. Components include, a pressure regulator, idle
air control valve, fuel injector(s), thro ttle position sensor, fuel inlet and a fuel
return fitting.
The Throttle Body Injection identifi cation number is stamped on the lower
mounting flange located near the TPS. Th e number is in alphabetical code and
should be noted before servicing the unit.
An oxygen sensor in the exhaust syst em functions to provide feedback
information to the ECM as to oxygen content in the exhaust. The ECM then
uses this information to modify fuel de livery to achieve as near as possible an
ideal air/fuel ratio of 14.7 :1. This ratio permits the ca talytic converter to become
more effective in reducing emissions wh ile providing acceptable driveability.
Should you encounter any type of engine performance problem, have a
complete CCC system test performed by a qualified, professional technician. If
the fault lies in the injection system, you can use the following procedures to
remove the TBI unit and replace the defective component(s).
RELIEVING FUEL SYSTEM PRESSURE
1. Disconnect the negative battery cable to prevent fuel discharge if the key
is accidentally turned to the RUN position.
2. Loosen the fuel filler cap to relieve fuel tank pressure and do not tighten
until service has been completed.
3. Fuel system pressure is automatic ally relieved when the engine is turned
OFF. No further action is necessary.
When disconnecting fuel lines, there ma y still be a small amount of fuel
released. Cover the fuel line connection wi th a shop cloth to collect the fuel,
then place the cloth in an approved container.
ELECTRIC FUEL PUMP
REMOVAL & INSTALLATION
The fuel pump is part of t he fuel sender assembly located inside the fuel tank.
1. Release the fuel syst em pressure and disconnec t the negative battery
cable.