Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Tundra 2000-2006 Approved 04-06 techinfo.toyota.com ileaf 06toyrm 06toypdf 06rmsrc 06tundra em1grfe cohc insp
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download insp documenatation <<
Text preview - extract from the document
EM-1
ENGINE MECHANICAL (1GR-FE) - CO/HC
CO/HC EM0KQ-10
INSPECTION
HINT:
This check is used only to determine whether or not the idle CO/
HC complies with regulations.
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All accessories switched OFF
(e) All vacuum lines properly connected
(f) SFI system wiring connectors fully plugged
(g) Correct ignition timing
(h) Transmission in neutral position
(i) Tachometer and CO/HC meter calibrated by hand
2. START ENGINE
3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180 SE-
CONDS
4. INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
CO/HC Meter
5. IMMEDIATELY CHECK CO/HC CONCENTRATION AT
IDLE AND/OR 2,500 RPM
HINT:
When performing the 2 mode (2,500 rpm and idle) test, follow
the measurement orders prescribed by the applicable local reg-
ulations.
A19383
EM-2
ENGINE MECHANICAL (1GR-FE) - CO/HC
If the CO/HC concentration does not comply with regulations,
perform troubleshooting in the order given below.
(1) Check the A/F sensors and heated oxygen sensors
operation (See page DI-84 and DI-90).
(2) See the table below for possible causes, and then
inspect and correct the corresponding causes if
necessary.
CO HC Problems Causes
Normal High Rough idle 1. Faulty ignitions:
S Incorrect timing
S Fouled, shorted or improperly gapped plugs
2. Incorrect valve clearance
3. Leaky intake and exhaust valves
4. Leaky cylinders
Low High Rough idle 1. Vacuum leaks:
(fluctuating HC reading) S PCV hose
S Intake manifold
S Throttle body
2. Lean mixture causing misfire
High High Rough idle 1. Restricted air filter
(Black smoke from exhaust) 2. Faulty SFI system:
S Faulty pressure regulator
S Defective ECT sensor
S Faulty ECM
S Faulty injectors
S Faulty throttle position sensor
S Faulty MAF meter
◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo