Egr

[blindsp1]

my 95 eclipse just got a test pipe on my car and check engine comes on 2 days afterwards and said egr flow insufficent...what should i do???

[Jim]

haha thats normal...

the second o2 sensor just checks to see if the cat is in proper working order, when you remove the cat, it throws a cel

you can get a thing called an o2 simulator, or just leave it doesnt really hurt anything

[blindsp1]

ok man thanks

[darkelvis]

just buy a cheap O2 sim. to get rid of the light.

[blindsp1]

i have an obd2 check engine light eraser and everything at work...how much are o2 sims neway???cuz i think ill get tired of deleting it over and over again

[HandoEX]

They're about $20-$30.

[ticklemedaly]

thats weird that it threw an EGR code....but since the cat isn't there I can see that the back pressure is different. I dont know, I try and stay away from DSM's anyways.