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Check Engine Light Tips

1. The Check Engine light tells you the computer found a problem with your vehicle's running condition.

2. If the vehicle is drving OK, a Check Engine light is not a reason to pull over. But get the problem fixed soon.

3. In testing areas, you will fail your emissions test if the Check Engine light is on.

4. Fuel economy generally suffers when the Check Engine light is on.

5. An extended warranty covers emissions-related components that can trigger the Check Engine light. More information is at: epa.gov/obd/warranties.htm.

6. When the Check Engine light is on, one or more "trouble code(s)" are stored in the computer.

7. You can read and erase trouble codes using inexpensive code-reader tools from auto-parts stores; the tools are very easy to use.

8. The problems identified by the codes are frequently easy to fix (such as a loose gas cap), but some are complex, requiring professional diagnosis.

9. A trouble code indicates a circuit where the problem was identified, not necessarily the faulty component. Diagnosis is often necessary.

10. The Haynes OBD-II Techbook (Book #10206) is your source for late-model code information. If you have a 1995 or earlier model, get Book #10205. Both books can be found in the Techbook section of this site.

 

 
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Haynes Catalog

 
Automotive Techbooks
 
10205
Automotive Computer Codes & Electronic Engine Management Systems Haynes Techbook

Our Price: $24.95

Computer-controlled car repair made easy!
--Simple Do-it-Yourself Diagnosis
--Easy Access to On-board Computer Trouble Codes
--Complete and Easy to Understand Code Charts for all Models
...



10206
OBD-II & Electronic Engine Management Systems Haynes Techbook

Our Price: $24.95

Computer-controlled car repair made easy! For all car and light truck models manufactured since 1996.
--Understand your vehicle's On-Board Diagnositic system
--How to deal with that "Check Engine" light--from reading the code to diagnosing and fixing the problem
--Comprehensive computer codes list...



10210
Automotive Emissions Control Haynes Techbook

Our Price: $24.95

For Domestic and imported models:
--All Systems and Components
--Smog Test Preparation
--Vacuum Diagnosis
--Maintenance
--Troubleshooting
--Repair...



10215
Fuel Injection 1978 thru 1985 Haynes Techbook

Our Price: $24.95

For Domestic and import models
--Step-by-Step Removal and Installation Procedures
--Component Repair and Overhaul
...



10220
Fuel Injection 1986 thru 1999 Haynes Techbook

Our Price: $24.95

Complete fuel injection trouble code charts
--Domestic and Import Models
--Simplified Troubleshooting Using Common Tools and On-board Computer
--Step-by-Step Checks and Component Replacement
...



 
Automotive Techbooks
 
10225
Holley Carburetor Haynes Techbook

Our Price: $24.95

Over 500 step-by-step photos with coverage for:
--1 Barrel
--2 Barrel
--3 Barrel
--4 Barrel
--Tuning
--Repair
--Overhaul
--Modifications
...



10230
Rochester Carburetor Haynes Techbook

Our Price: $24.95

Over 340 step-by-step photos with coverage on:
--1 Barrel
--2 Barrel
--4 Barrel
--Tuning
--Repair
--Overhaul
--Modifications
...



10240
Weber Carburetor Haynes Techbook

Our Price: $24.95

All about the Weber Carburetor including Zenith Stromberg and SU Carburetors:
--Theory and operation
--Maintenance and tune-up
--Detailed overhaul procedures
--Application and reference tables
...



10305
Chevrolet Engine Overhaul Haynes Techbook

Our Price: $24.95

Includes 262, 265, 267, 283, 302, 305, 307, 327, 350, 396, 400, 402, 427 and 454 cubic inch V8 engines
--Diagnosis
--Overhaul
--Performance
--Economy modifications
...



10310
Chrysler Engine Overhaul Haynes Techbook

Our Price: $24.95

Includes 273, 318, 340, 360, 361, 383, 400, 413, 426 and 440 cubic inch V8 and 3.9L V6 engines
--Diagnosis
--Overhaul
--Performance modifications
--Economy modifications

...





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