Troubleshooting
If the CO/HC concentration does not comply with
regulations, perform troubleshooting in the order
given below.
(a) Check heated oxygen sensor operation.
(b) See the table below for possible causes, and then
inspect and correct the applicable causes if neces–
sary.
1. Restricted air filter
2. Plugged PCV valve
3. PAIR system problems
4. Faulty M F I systems:
•
Faulty pressure regulator
•
Clogged fuel return line
•
Defective ECT sensor
•
Defective intake air temperature sensor
•
Faulty ECM
•
Faulty injector
•
Faulty cold start injector
•
Faulty throttle position sensor
•
Faulty volume air flow meter
1. Faulty ignitions:
•
Incorrect timing
•
Fouled, shorted or improperly gapped plugs
•
Open or crossed high–tension cords
•
Cracked distributor cap
2. Incorrect valve clearance
3. Leaky EGR valve
4. Leaky intake and exhaust valves
5. Leaky cylinder
1. Vacuum leaks:
•
PCV hose
•
EGR valve
•
Intake manifold
•
Air intake chamber
•
Throttle body
•
Brake booster line
2. Lean mixture causing misfire
Rough idle
(Black smoke from exhaust)
Rough idle
(Fluctuating HC reading)
Rough idle
Problems
Causes
Normal
High
High
High
High
Low
–
ENGINE
ENGINE MECHANICAL
EG2–29
Содержание 22R-E
Страница 1: ...INTRODUCTION INTRODUCTION IN 1 ...
Страница 9: ...VEHICLE LIFT AND SUPPORT LOCATIONS INTRODUCTION VEHICLE LIFT AND SUPPORT LOCATIONS IN 9 ...
Страница 35: ...22R E ENGINE ENGINE EG1 1 ...
Страница 45: ...HINT Adjust idle mixture as necessary ENGINE ENGINE MECHANICAL EG1 11 ...
Страница 49: ...CYLINDER HEAD COMPONENTS ENGINE ENGINE MECHANICAL EG1 15 ...
Страница 80: ...CYLINDER BLOCK COMPONENTS ENGINE ENGINE MECHANICAL EG1 46 ...
Страница 110: ...EXHAUST SYSTEM COMPONENTS ENGINE ENGINE MECHANICAL EG1 76 ...
Страница 116: ...LAYOUT AND SCHEMATIC DRAWING Federal and Canada ENGINE EMISSION CONTROL SYSTEMS EG1 82 ...
Страница 117: ...LAYOUT AND SCHEMATIC DRAWING Calif ENGINE EMISSION CONTROL SYSTEMS EG1 83 ...
Страница 118: ...POSITIVE CRANKCASE VENTILATION PCV SYSTEM ENGINE EMISSION CONTROL SYSTEMS EG1 84 ...
Страница 122: ...EXHAUST GAS RECIRCULATION EGR SYSTEM Federal and Canada ENGINE EMISSION CONTROL SYSTEMS EG1 88 ...
Страница 126: ...EXHAUST GAS RECIRCULATION EGR SYSTEM Calif ENGINE EMISSION CONTROL SYSTEMS EG1 92 ...
Страница 135: ...MFI SYSTEM DESCRIPTION ENGINE MFI SYSTEM EG1 101 ...
Страница 211: ...FUEL PUMP ENGINE MFI SYSTEM EG1 177 ...
Страница 226: ...FUEL TANK AND LINE COMPONENTS ENGINE MFI SYSTEM EG1 192 ...
Страница 230: ...3 INSTALL INTAKE AIR CONNECTOR ENGINE MFI SYSTEM EG1 196 ...
Страница 239: ...2 INSTALL THROTTLE BODY See page EG1 202 ELECTRONIC PARTS LOCATION ENGINE MFI SYSTEM EG1 205 ...
Страница 278: ...3VZ E ENGINE ENGINE EG2 1 ...
Страница 299: ... ENGINE ENGINE MECHANICAL EG2 22 ...
Страница 300: ... ENGINE ENGINE MECHANICAL EG2 23 ...
Страница 326: ...CYLINDER HEAD COMPONENTS ENGINE ENGINE MECHANICAL EG2 49 ...
Страница 327: ... ENGINE ENGINE MECHANICAL EG2 50 ...
Страница 367: ...CYLINDER BLOCK COMPONENTS ENGINE ENGINE MECHANICAL EG2 90 ...
Страница 411: ...EXHAUST SYSTEM ENGINE ENGINE MECHANICAL EG2 134 ...
Страница 419: ...LAYOUT AND SCHEMATIC DRAWING ENGINE EMISSION CONTROL SYSTEMS EG2 142 ...
Страница 435: ...MFI SYSTEM SYSTEM CIRCUIT DESCRIPTION ENGINE MFI SYSTEM EG2 158 ...
Страница 476: ... ENGINE MFI SYSTEM EG2 199 ...
Страница 497: ...INJECTOR COMPONENTS FOR REMOVAL AND INSTALLATION ENGINE MFI SYSTEM EG2 220 ...
Страница 508: ...FUEL TANK AND LINE COMPONENTS ENGINE MFI SYSTEM EG2 231 ...
Страница 521: ...ELECTRONIC PARTS LOCATION ENGINE MFI SYSTEM EG2 244 ...
Страница 569: ...IGNITION SYSTEM IGNITION SYSTEM IG 1 ...
Страница 596: ...STARTING SYSTEM STARTING SYSTEM ST 1 ...
Страница 597: ...STARTER COMPONENTS STARTING SYSTEM Starter ST 2 ...
Страница 609: ...CHARGING SYSTEM CHARGING SYSTEM CH 1 ...
Страница 613: ...GENERATOR COMPONENTS CHARGING SYSTEM Generator CH 5 ...