That old (?) purge valve problem P28/B18C1
Posted: Sun Aug 25, 2002 10:45 am
Ahhh, my second problem...
**Purge Valve**
Problem: The purge valve[solenoid] (according to the Hondalogger) never comes on.
What I've tried:
Datalogging for a full hour around town and on the highway shows the purge valve never is commanded ON. Opening up the gas cap releases pressure in the tank.
Disconnecting the electrical plug when the car is at idle (low) in the driveway, without any effect (it wasn't on). Checked the voltage, got 12 VAC at the plug (?). Could ground the (-) side of the valve to get it to come on.
Disconnecting the vacuum hose when the car is at idle (low) in the driveway- the idle increases (vacuum leak) with the hose off- so it's connected OK
Results/Problems
I'm using the purge valve from the '00 B18C1, not the original with the DelSol. They are both 12VDC. According to information I have (Haynes Manual) the purge valve on a P28 ECU is supposed to open when the car is above 3000 RPM and the TPS sensor greater than 5%. What gives?
**Purge Valve**
Problem: The purge valve[solenoid] (according to the Hondalogger) never comes on.
What I've tried:
Datalogging for a full hour around town and on the highway shows the purge valve never is commanded ON. Opening up the gas cap releases pressure in the tank.
Disconnecting the electrical plug when the car is at idle (low) in the driveway, without any effect (it wasn't on). Checked the voltage, got 12 VAC at the plug (?). Could ground the (-) side of the valve to get it to come on.
Disconnecting the vacuum hose when the car is at idle (low) in the driveway- the idle increases (vacuum leak) with the hose off- so it's connected OK
Results/Problems
I'm using the purge valve from the '00 B18C1, not the original with the DelSol. They are both 12VDC. According to information I have (Haynes Manual) the purge valve on a P28 ECU is supposed to open when the car is above 3000 RPM and the TPS sensor greater than 5%. What gives?