6525 EVAP Approved

Enhanced EVAP Phase-inEnhanced EVAP Phase-in

1996 ----- 20%

1997 ----- 40%

1998 ----- 90%

1999 ---- 100%

Manufacturers with sales less than 10,000 vehicles per year are exempt until 1999 when 100% compliance is required.

The typical non-enhanced EVAP system contains the following components:

EVAP emission pressure control valve.

Vented canister.

Diagnostic switch

EVAP purge solenoid.

Do you see the words “Gas Cap” here?

The Enhanced EVAP System uses the following components:

Evaporative system canister.

Fuel tank pressure sensor.

Canister purge solenoid.

Canister vent solenoid.

Service port.

Fuel cap.

Fuel level sensor.

Do you know anybody that

has changed a gas cap?

Using an EVAP-approved smoke machine isn’t just recommended, it’s now required by DaimlerChrysler, Ford, General Motors, Land Rover,

Saab and Saturn. More approvals are pending.

PO442

PO456

PO446 PO444

PO455

PO499

PO469

PO440PO453

PO449PO451

P2026

P0456P0442

P2422

Let’s put the Let’s put the numbers to numbers to

work for you!work for you!

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Are EVAP codes something that happen often?

CHECK ENGINE

1.1. P0171 8.88% System too lean -- Bank 1P0171 8.88% System too lean -- Bank 1

2.2. P1443 7.45% Ford EVAP Control Valve FailureP1443 7.45% Ford EVAP Control Valve Failure

3.3. P0455 7.16% Gross EVAP LeakP0455 7.16% Gross EVAP Leak

4. P0135 5.44% O2 Sensor Heater Circuit

5. P0141 5.16% O2 Sensor Heater

6. P0301 5.16% Misfire Cylinder #1

7. P0300 4.30% Random Misfire

8. P0420 4.30% Low Catalyst Efficiency – Bank 1

9. P0134 3.44% O2 Sensor No Activity

10. P0340 3.44% Camshaft Pos. Sensor MalfunctionThis information is from the Clean Air Conference 2002 Breckenridge,

Colorado

Top 10 DTCs in Vehicles with Less Than 75,000 Miles (CA)

The right tool for the top three most common Codes

Unlike traditional general-purpose smoke machines, the EVAP-approved units use an inert gas like

Nitrogen for testing the EVAP systems.

Where can you get a Nitrogen tank ?

WWW.PRAXAIR.COM800-PRAXAIR ( 772-9247)

Enter Zip Code

How Long Will A Tank Last ?300 cu-ft. = 300 5-Minutes Tests

You can use shop air for all general purpose leak testing.

Do you sell this with the 6285 LeakTamer? Do you sell this with the 6285 LeakTamer? Why not?Why not?

Caution

Clockwise to remove

Must remove core and

DON’T LOOSE IT !

Put smoke supply hose in good and tight

Now we are ready to find leak(s)

Intake Manifold

CharcoalCanister

Purge Valve

Disconnect the hose between the Purge Valve and Charcoal Canister, at or as close as you can to the Purge Valve. Insert the EVAP tester supply line into the hose that is going to the Charcoal Canister. Close “Canister Vent Valve” and continue testing the system.

Canister VentValve

When smoke is put into the EVAP system (Canister Close Valve is closed) there should NOT be any smoke exiting the Canister Close Valve.

This test procedure doesn’t test from the Purge Valve back to the engine.

Canister Vent Valve

Fuel Tank

No EVAP test port?

This test is done with

key on engine off

The EVAP system is NOT to be tested with more than 13” of Water Column (less than 1/2psi). The OE-approved machines have a built-in regulator to handle this task.

Caution

General purpose smoke machines can produce 3 to 5 times more pressure than recommended by the manufacturers.

Over pressuring the system can and will cause damage!

Look at the tag on the service port 1psi Max

Future

TEST SMOKE

.040’’

.020’’

FAIL / ÉCHEC / FALLA

PASS / SUCCÈS / PASE

Observe reading after ball stops

descending

The power of Quantifying PO442 = .040”(Small Leak) PO456 = .020”(Very Small Leak)OE-approved EVAP machines have the ability to quantify both PO442 & PO456 codes and give you a pass / fail test in less than 2 minutes

Example: Select the setting of .040” or .020” and adjust the red flag to calibrate to that setting.

Put the unit in the test mode and push the remote button. With the canister vent valve

closed, wait for the ball to stop descending. If the ball stops above the red flag, the leak(s) are

greater than calibrated.

Fail

Pass

P0456P0442 CHECK ENGINE

1.1. P0171 8.88% System too lean -- Bank 1P0171 8.88% System too lean -- Bank 1

2.2. P1443 7.45% Ford EVAP Control Valve FailureP1443 7.45% Ford EVAP Control Valve Failure

3.3. P0455 7.16% Gross EVAP LeakP0455 7.16% Gross EVAP Leak

OE approved + Check Engine Lights + Top 3 Codes

+ To Quantify + Best Value + THE ONLY WAY =

The The AnswerAnswer6525 EVAP Approved