The best thing to do with that EGR valve is remove the electrical plug
from it, and run the car without it- you will get increased part
throttle and WOT response, better driveability, and more power. Run 89
octane fuel at least.
EGR means exhaust gas recirculation- it puts exhaust in the intake
stream to reduce emissions of NOX- (oxides of nitrogen)- but the
downside is, burned fuel can't burn again, it dilutes the incoming
fuel, and you have less power.
I'm running a ' 95 Pontiac GTP with 3.4 liter DOHC V-6, the EGR has
been disconnected for the last 5 years and I put 50,000 miles on it
that way. You will get a check engine light occasionally and a code,
ignore it. The car runs 200% stronger with no EGR
Before 1973, no American cars even had EGR- it was shoved down the
automakers throats by the government- to sell cars- otherwise the cars
would not meet the dumb ass liberal emission laws. Sharp mechanics
have been unplugging those EGR's ever since.
The newer EGR systems 2000 year model and newer, seem to be better
designed and you can keep those connected- but for the first 25 years
or so, 1973 on up, the cars run much better with EGR disconnected.
Using an EGR valve is like trying to run your gas grill with burned gas
fumes, instead of fresh propane. It just doesn't burn after it's been
burned once already. It was a way to get combustion temperatures down
in the engine, by extinguishing the flame front a bit with exhaust gas-
otherwise they'd have to inject something else in there to cool the
burn. With spent exhaust gas available in the exhaust ports, they
simply reported some of that exhaust into the intake stream. It's a
dumb ass idea in the first place.
NO racing vehicles use EGR- it is a stupid assed emission device that
94 Camaro V6 auto
Digital three vale E.G.R. valve
Diagnosis shows all three solenoids failed. Removed and cleaned out
all three valves and contacts. Replaced with new gadket. Still have
same codes. Service tech said that was unusual all three failed.
Is this unusual? Any else to check?
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