Brndo

I have a 92 3.1 with 215K on it. Only when the car is warm and I stop at a light the idle gets rough, starts to surge and then dies. This does not happen when I have the A/C running though. OBD code says the EGR valve is bad, but it was bad before this started happening. I thought a bad EGR valve would just reduce gas mileage and make for poor emissions. Any ideas?

88Regal Custom

remove your idle control motor (Key off)
and clean out the hole it goes in with fuel injector cleaner, donot get injector cleaner on the iac motor. give that a try that might help

meuhus

if your egr valve is stuck open it will make it run bad

terry4

Same exact problem with 92 3.1 244K except no EGR code. cleaned the Idle Air Control valve, MAYBE helped a little. Then changed the Oxygen Sensor, runs perfect now. Good Luck!

meuhus

if you getting an egr code something is wrong with it
stuck open more than likely
my s-10 blazer had similar problem
change egr but it was not bad just kept getting a piece of carbon in there keeping it from closing
wish i noticed it before i replaced it becase those are $180
it still would get stuck open until i put in a plate i made at work and a clean screen gasket
from autozone $12.00
don't know if the have them for the lumina or not but look into that before you replace the egr valve