ses light

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Jan 16, 2004 | 03:08 AM

Random

Thread Starter

Registered User

Joined: Oct 2003

Posts: 64

From: Sacramento, Ca

ses light

if the ses light comes on when my car is decelerating does that simply mean that there is an issue with some part of the smog system

Jan 16, 2004 | 12:59 PM

IXLR894Z28

Registered User

Joined: Jul 2003

Posts: 457

From: Pueblo West, Colorado

I have heard that under deceleration, emissions can go higher, and sometimes blow-by occurrs. This would get your O2 sensors to read incorrect. That may be the phenominon you are experiencing.

Jan 16, 2004 | 06:47 PM

HBHRacing

Registered User

Joined: Feb 2003

Posts: 1,109

From: Statesville NC

02's could be like siad.. also EGR is posible sence it usulay tests under decel.. MAP sensor is also a consideration. best thing to so is have it scaned for history codes and it should tell ya

Jan 17, 2004 | 12:53 PM

ImportKILLER

Registered User

Joined: Aug 1999

Posts: 1,151

From: I'm in the Bay, Trick

My gut says EGR. My car would set off the SES on the freeway when I would take my foot off the pedal.

With that said, don't base it just on that. Remove all doubt and get it scanned, best place being AutoZone since they do it for free.

Hope it ISN'T the EGR...they aren't cheap.

Jan 17, 2004 | 01:54 PM

MustangEater82

Registered User

Joined: May 2000

Posts: 4,738

From: Charleston, SC

Re: ses light

Quote:

Originally posted by Random
if the ses light comes on when my car is decelerating does that simply mean that there is an issue with some part of the smog system

whoa....

I know a guy with the same screename on another board and he is from Davis, California...

Either way its a common problme with 3.4Ls and the egr... comes up under decelerationg. Problem is some people have changed the EGR and and fixed it while for some they still had the problem...

not sure my 3.4L never had a problem with it...