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Emissions - EVAP Leak Detection Pump Quick Check|Page 6569 > < Emissions - EVAP Leak Detection Pump Quick Check
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Canister Purge Control Valve: Technical Service Bulletins
Attachment Bulletin # 200302

Group: 20 

Number: 03-02

Date: June 16,2003

Model(s): 
All with LDP 

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2003

Subject: 
Leak Detection Pump (LDP) -V144-, Quick Check

Supersedes T.B. Group 20 Number 03-01 dated Feb. 28, 2003

Condition

Unnecessary replacement of LDP due to mis-diagnosed leakage.

Service

As long as the Leak Detection Pump -V144- is operational you can quickly diagnose it as OK or leaking using the following method.

Prior to checking the LDP:

^

Ensure that vacuum at vacuum hose to LDP item -2- on illustration 20-A175 is equal to vacuum at port (source) at throttle body.

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Connect the VAS 5051 or VAS 5052 Diagnostic tool.

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Start engine and run at idle only.

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From VAS 5051 Start-up screen, select "Vehicle self diagnosis".

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Select vehicle system "01 - Engine electronics".

Emissions - EVAP Leak Detection Pump Quick Check|Page 6569 > < Emissions - EVAP Leak Detection Pump Quick Check