egr solenoid

95 tahoe 5.7L

The EGR solenoid does not open to send vacuum to the EGR valve when the vehicle is running. The voltage at this time is at 13.4v

However, with the vehicle off and switch on, the "switch" opens and closes properly as I attache the connector. The voltage at this time is at 12.3v.

The Code returns a 32. Would the 1 volt difference matter, also what should the voltage to the EGR solenoid be?

Thanks for any help!

Any luck figuring that out? I have the same problem getting code 32. However, my check engine light doesn't come on until I have driven about 5 miles or so. So, every time I initially drive off of have no light, then it pops up again. Is that what yours does or does it stay on all the time?

Yes, mine waits to come on after a few miles. I have changed the solenoid and the egr valve, still gets same results. The light will go off periodically though.

Same thing with me. I even disconnected the battery for a while to reset the codes. I will let you know if I find a solution. Good Luck!!!!