hooked egr to constant vacuum.hurt anything?
12-24-2012, 05:10 AM
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Car: 91 formula
Engine: 350 tpi
Transmission: auto
Axle/Gears: poss
hooked egr to constant vacuum.hurt anything?
i got tired of code 32. etime i thot id have it fixed it pop back up. so the other day i hooked egr valve to a constant vacuum. well no code. and it runs better after its warmed up(on highway).does seem to have more gitty up. my question is will this mess anything up?
12-25-2012, 09:19 AM
#4
Re: hooked egr to constant vacuum.hurt anything?
Depending upon the type of pilot valve in the EGR (negative or positive backpressure) you might get away with it, but the EGR may not act quite as it was intended once you are running and under load. While it may be shut at idle due to the pilot valve, it may open at part throttle load and under acceleration more or longer than it should.
What your effort has proven is that the EGR diagnosis (either MAP or temperature switch depending on model year) is probably working correctly, and that you might need to look at the vacuum solenoid valve, its vacuum source, and the ECM wiring to the solenoid as possible problems.
What your effort has proven is that the EGR diagnosis (either MAP or temperature switch depending on model year) is probably working correctly, and that you might need to look at the vacuum solenoid valve, its vacuum source, and the ECM wiring to the solenoid as possible problems.
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