Sonata GL V6-2.5L (1999)
1. Prepare a voltmeter and connect it to FTP pins as shown.
2. After 20 min. idling, inspect the voltage.
System voltage: 5 V
At accelerate: Max. 4.5, Min. 0.5 V
3. At idle, inspect that voltage fluctuates up to accelerate rpm up and down.
NOTE: If voltage is not within spec.as procedures, there is leakage and inspect the fuel tank and hoses toward canister and fuel neck. Then repair or
replace relevant parts.
