S.E.S light is on till open cycle

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Oct 21, 2004 | 11:03 PM

NewbieWar

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Joined: Sep 2003

Posts: 2,370

From: Germany

S.E.S light is on till closed cycle

my light comes on as soon as u start the car and it runs ok, for a while then at about 165 Degrees or so it gets really ruff and the car feels likes its gonna stall then the light goes off and the car runs normally... what is wrong?

Last edited by NewbieWar; Oct 22, 2004 at 08:33 PM.

Oct 22, 2004 | 04:13 AM

slimdawson

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Joined: Feb 2001

Posts: 1,234

From: New Bern, NC USA

Re: S.E.S light is on till open cycle

The car is in open loop when you start it. It goes into closed loop. Maybe it is your o2s. They aren't used until closed loop although I don't know why it would get better.

Scan it and be sure before you start throwing parts that it might not need at it.

Oct 22, 2004 | 08:33 PM

NewbieWar

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From: Germany

Re: S.E.S light is on till open cycle

sensors are brand new

Oct 22, 2004 | 11:51 PM

Injuneer

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Posts: 71,094

From: Hell was full so they sent me to NJ

Re: S.E.S light is on till open cycle

A scan, with a code would make it a whole lot easier. Do the fans run right from startup? Might indicate the AIR pump fuse is blown. But, we're just guessing at this point.

Oct 23, 2004 | 09:58 PM

NewbieWar

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From: Germany

Re: S.E.S light is on till open cycle

well it started after i let it run for a few miles at 260degrees

Oct 23, 2004 | 10:30 PM

slimdawson

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From: New Bern, NC USA

Re: S.E.S light is on till open cycle

I still don't have an idea. Get it scanned and you will more than likely find the problem.

Oct 23, 2004 | 11:03 PM

ShawnMacAnanny

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Joined: Sep 2004

Posts: 867

From: Felton, Delaware

Re: S.E.S light is on till open cycle

Sounds like your EGR. My little vacuun line came off it. Check and see, it right on the back fo the manifold. Didnt have a ruff idle, but it did set a code and idle would fluctuate.

Oct 24, 2004 | 02:53 PM

NewbieWar

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From: Germany

Re: S.E.S light is on till open cycle

well now i just started it to move it to change my oil... got more than 5 qts out weird... usually much less... maybe jiffy lube gave me extra since my dipstic is broken off...

well i started it up and it stalled. then i ran the starter and the engine was going but didnt sound like it was sustaining itself... then it started and if i got on the gas it tried to stall until i got back off the gas...

i donno if this problem is relative...

Dec 11, 2004 | 01:16 AM

NewbieWar

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From: Germany

Re: S.E.S light is on till open cycle

I got it scanned its the water pump temp sensor...

i just had it replaced not to long ago... 3 months maybe?

Dec 11, 2004 | 02:51 AM

#10

Zack

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Joined: Apr 2002

Posts: 2,310

From: Glendale, Ca

Re: S.E.S light is on till open cycle

Quote:

Originally Posted by NewbieWar

I got it scanned its the water pump temp sensor...

i just had it replaced not to long ago... 3 months maybe?

whered you get it scanned at? my t/a is being a POS with an SES light..not like i can drive it to where ever it was scanned anyways :-/

Dec 14, 2004 | 11:56 PM

#11

NewbieWar

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Posts: 2,370

From: Germany

Re: S.E.S light is on till open cycle

it was a place in brea, the guy scanned it for me for free at dynomotions check em out at dynomotions.net i think. i was considering having him do my engine work... 383 lt4... but still working on finding a good shop maybe go someplace else, but i think i'll have him do my a4-m6 swap for sure and misc work.