EGR Low voltage [Archive] - Forum


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02-24-2005, 10:54 AM
I have a 2000 GAGT and getting a P0405 EGR Low Voltage. Replaced EGR and still got the same code. 5volt reference voltage not present. Checked all the fuses and everything looks fine. Recently replaced intake manifold gasket. Everything should be back together normal but the light came on after we got it back together. Know of anything we could of forgot? Any help please!

02-24-2005, 11:12 AM
Any wires get pinched or anything?

02-24-2005, 11:14 AM
no not that I've seen. Know of anybody with a wiring diagram so we can trace the 5volts back?

02-24-2005, 08:20 PM
I got a code for an EGR problem a while back. It was still under warranty so I took it to the dealer and they updated the computer firmware and the code was gone. That was a 2001 GT. So if you haven't had your computer updated before, you may want to check that out.