Emission Control and Air Pollution Module
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Day 3-4 Exhaust Emissions Test Report

Here are some guidelines about how to prepare a report for an exhaust emission test. This report has to be prepared by the Davea students and sent through e-mail to the students of the high-schools which collaborate with Davea on this project.

 

• Perform various emissions tests using 4-Gas or 5-Gas Analyzers. Perform tests on various types of cars (and if possible include old cars-e.g., from the 1970s).
• Collect the printouts and examine the data of the four gas results (Carbon Monoxide, Hydrocarbons, Carbon Dioxide, Oxygen) 
 
A Sample Printout of an Emissions Test from Davea
12/10/97 10:06:31
DAVEA CENTER
708-LADA:
301 SWIFT
ADDISON, IL
NAME: mike
MILEAGE: 24
VIN: 1FTHE24H4S
95 FORD TK E250
 
FOUR GAS RESULTS
    CO HC CO2 O2
  RPM (%) (ppm) (%) (%)
SPECS   2.00 max 300 max 7.00 min 9.00 max
IDLE 939 0.02 57 10.01 0.55
CRUISE 2001 0.00 18 7.73 0.55

DIAGNOSTIC RESULTS

FUEL SYSTEM ACCEPTABLE

  FOUR GAS SPECS
Fuel System Type Port injection
Slow Idle 800 RPM
Hydrocarbons 300 PPM
CO minimum 0.10 %
CO maximum 2.00 %
Carbon dioxide 7.00 %
Oxygen 9.00 %

 • Write an Exhaust Emission Test Report including the following parts. This will help the high school students to analyze the data for you. Send the report to the participating classes via e-mail.

Exhaust Emission Test Report

1. Purpose

2. Required equipment

3. Precautions

4. Visual Inspection

5. Test Preparation

6. Test Procedure

7. Data Input

8. Data Analysis

9. Data Output

10. Acceptance Criteria

11. Quality Provisions