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Testing a VSV?
#1
08-28-2009, 07:59 AM
Testing a VSV?
So I have the P0401 code. using the search I found this to be a common problem for 96 2.2 Camry's.
first I took the egr off and tested the diaphragm with a vacuum tester and it seemed to work fine. It didn't appear to have all that much carbon, but I did spray it down with carb cleaner.
next I removed the EGR solenoid valve (vsv) and tested it, it reads 38.5 ohms. then I hooked it up to a 12V power supply and the electronics inside appear to be operating? although there's no way to verify.
again, there isn't much if any carbon.
I then rerouted the vsv connections to for easier access checked the vacuum lines for leaks, but there are none.
what now? should I change the vsv anyway?
first I took the egr off and tested the diaphragm with a vacuum tester and it seemed to work fine. It didn't appear to have all that much carbon, but I did spray it down with carb cleaner.
next I removed the EGR solenoid valve (vsv) and tested it, it reads 38.5 ohms. then I hooked it up to a 12V power supply and the electronics inside appear to be operating? although there's no way to verify.
again, there isn't much if any carbon.
I then rerouted the vsv connections to for easier access checked the vacuum lines for leaks, but there are none.
what now? should I change the vsv anyway?
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