SaturnFans.com
saturnfans.com - classifieds - forums


Go Back   SaturnFans.com Forums > Models > Saturn S-Series > S-Series Tech

Reply
 
Thread Tools Display Modes
Old 12-09-2021, 05:14 PM   #1
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default SES light blinking

Hello, I have a 1999 SW2 with about 240,000 miles on it. I recently had the EGR valve replaced and it was running just fine. This morning when I started it the car was running really roughly, and stalled as I backed out. Started it up again just to get it in the garage.

Went to work, came back to take it to the same mechanic, and same thing. This time I noticed the SES light came on and was blinking. Now, I'm having it towed to the mechanic. Had a strong smell of gas as well, and my wife said some white exhaust had come out (she was going to follow me).

Anything specific I should be prepared for?

Thanks!
Coehawk is offline   Reply With Quote
SaturnFans.com Sponsored Links
Old 12-09-2021, 08:13 PM   #2
Kaervak
Advanced Member
Kaervak has a spectacular aura aboutKaervak has a spectacular aura about
 
Kaervak's Avatar
 
Join Date: Jul 2008
Location: Garfield Heights, OH
Posts: 549
 

1999 SL2
Default Re: SES light blinking

When the SES light flashes that's a catalyst damaging misfire. Since you smelled a strong raw fuel smell and it was running rough, I'm going to assume one or more cylinders lost spark and raw fuel was being dumped through the exhaust. Could be as simple as a failed spark plug or could be that the ICM failed. Either way, fairly easy repair and not too horrifically expensive. Another possible cause, while quite rare, is a failed PCM. I'm one of a very few people that have had a PCM go bad and it was not cheap to fix. I highly doubt that's the case though. Either way, let us know what it was when you hear from your mechanic.
Kaervak is offline   Reply With Quote
Old 12-09-2021, 09:54 PM   #3
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Thank you for the heads up. I will definitely give an update.
Coehawk is offline   Reply With Quote
Old 12-10-2021, 12:58 AM   #4
Kaervak
Advanced Member
Kaervak has a spectacular aura aboutKaervak has a spectacular aura about
 
Kaervak's Avatar
 
Join Date: Jul 2008
Location: Garfield Heights, OH
Posts: 549
 

1999 SL2
Default Re: SES light blinking

After a bit more thinking, it could also be a stuck open fuel injector. Just pouring fuel into the cylinder. That's a pretty easy fix too thankfully.
Kaervak is offline   Reply With Quote
Old 12-13-2021, 01:46 PM   #5
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Solved!

It was a malfunctioning ICM. While he was at it he replaced the plugs and ignition coils, and cleaned out the fuel injectors.

So far, so good.

Thanks for the technical information!
Coehawk is offline   Reply With Quote
Old 12-14-2021, 03:08 PM   #6
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Well, maybe not completely solved. Starts fine, but seems to idle too fast at stop, and has a bit of hesitation accelerating. Seems to run okay at highway speed, but a little Ďlurchí as it goes into the higher gear.
Coehawk is offline   Reply With Quote
Old 12-14-2021, 10:58 PM   #7
trottida
Master Member
trottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud of
 
trottida's Avatar
 
Join Date: Oct 2005
Location: North of North of Toronto, Northern Ontario, Canada
Posts: 2,982
 

1999 SL2
2001 SL1
Default Re: SES light blinking

What does your temp gauge read when the car is up to operating temperature?
...
1999 SL2 MT (299,400 km @ 11/2021)
2012 Ford Focus SEL HB MT
2011 Suburban LT

Past Saturns
2001 SL1 MT (438,500 km 11y)
1993 SW2 AT (10y)
2001 LW200 MT (3.5y)
1992 SL2 MT (5y)

:canada:
trottida is offline   Reply With Quote
Old 12-17-2021, 04:08 PM   #8
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Temp seems fine; normal for itís history. Mechanic didnít pull any new codes and said itís running fine for him. No acceleration issues, no increased idling.

Weird!
Coehawk is offline   Reply With Quote
Old 12-17-2021, 04:22 PM   #9
trottida
Master Member
trottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud oftrottida has much to be proud of
 
trottida's Avatar
 
Join Date: Oct 2005
Location: North of North of Toronto, Northern Ontario, Canada
Posts: 2,982
 

1999 SL2
2001 SL1
Default Re: SES light blinking

Quote:
Originally Posted by Coehawk View Post
Temp seems fine; normal for itís history. Mechanic didnít pull any new codes and said itís running fine for him. No acceleration issues, no increased idling.

Weird!
This picture shows where it should be in a GEN2 like yours. Is that your "seems fine" range? Have you owned the car since new?

...
1999 SL2 MT (299,400 km @ 11/2021)
2012 Ford Focus SEL HB MT
2011 Suburban LT

Past Saturns
2001 SL1 MT (438,500 km 11y)
1993 SW2 AT (10y)
2001 LW200 MT (3.5y)
1992 SL2 MT (5y)

:canada:
trottida is offline   Reply With Quote
Old 12-17-2021, 10:19 PM   #10
PrestonIII
Member
PrestonIII is a jewel in the roughPrestonIII is a jewel in the roughPrestonIII is a jewel in the rough
 
Join Date: Oct 2017
Location: Columbus, Ohio, USA
Posts: 379

1994 SL2
Default Re: SES light blinking

With an ECM replacement, the car may just need to relearn it's programming.

First thing I would do is NOTHING. Just drive it till you get a hundred or so miles on it in combined city and highway miles. Then see if the problem persists.

If it persists, THEN check other things. especially that ECT (engine coolant temperature) sensor. If the computer doesn't see the engine warm up, it will keep the idle a little higher than normal.

Preston
PrestonIII is offline   Reply With Quote
Old 12-18-2021, 03:10 PM   #11
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Thanks!! Iíll do that and report back to the forum.
Coehawk is offline   Reply With Quote
Old 12-19-2021, 01:33 AM   #12
onlinebiker
Senior Member
onlinebiker is a name known to allonlinebiker is a name known to allonlinebiker is a name known to allonlinebiker is a name known to allonlinebiker is a name known to allonlinebiker is a name known to all
 
Join Date: Dec 2015
Location: sw michigan
Posts: 1,535
Default Re: SES light blinking

Quote:
Originally Posted by PrestonIII View Post
With an ECM replacement, the car may just need to relearn it's programming.

First thing I would do is NOTHING. Just drive it till you get a hundred or so miles on it in combined city and highway miles. Then see if the problem persists.

If it persists, THEN check other things. especially that ECT (engine coolant temperature) sensor. If the computer doesn't see the engine warm up, it will keep the idle a little higher than normal.

Preston
^^^^^^

This. Exactly.
...
Currently owned
93 SC2 M(anual)
96 SC2 M
98 SL2 A(uto)
99 SC2 A
01 SC2 A
01 SC2 M
02 SC2 M
02 SL2 A
02 SL2 M
parts
2 94 SC2 parted out
2 96 SC2
98 SC2 - rusty frame minus engine.
98 SL2
onlinebiker is offline   Reply With Quote
Old 12-19-2021, 01:36 AM   #13
Greg1
Senior Member
Greg1 will become famous soon enough
 
Greg1's Avatar
 
Join Date: Jul 2001
Location: Thousand Oaks, CA
Posts: 1,363
 

1997 SW2
1998 SL2
Default Re: SES light blinking

I believe it was the ignition control module that was replaced not the PCM so there shouldn't be any relearn.
...
97 SW2 5-Sp 372k
Greg1 is offline   Reply With Quote
Old 12-19-2021, 01:14 PM   #14
billr
Master Member
billr is a splendid one to beholdbillr is a splendid one to beholdbillr is a splendid one to beholdbillr is a splendid one to beholdbillr is a splendid one to beholdbillr is a splendid one to beholdbillr is a splendid one to behold
 
Join Date: Jul 2013
Posts: 6,479
Default Re: SES light blinking

I was tempted to post the same opinion; but then considered that a bad ICM was causing misfires that probably gave abnormal O2 sensor readings. The PCM may have been chasing this bogus O2 data with fuel trims that need to be corrected once the misfiring is gone. So, some LTFT "relearn" may be necessary, but I doubt this will take more than a few minutes/miles of driving once the engine is hot.
billr is offline   Reply With Quote
Old 12-20-2021, 01:30 PM   #15
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Quote:
Originally Posted by trottida View Post
This picture shows where it should be in a GEN2 like yours. Is that your "seems fine" range? Have you owned the car since new?

Yes, I'm the original owner, and yes, the temp is right about at the picture.

I drove it about 30 miles this morning (~25 highway, 5 city) and it had one 'hiccup'. I had to slow down on the interstate (from 60-35) and then speed back up, and that's when there was a slight lurch or hesitation. Seemed to run fine after that, though.

SES light came on a few minutes later down the road (solid, not binking), so I'm not sure why that happened unless it just took a bit for the computer to realize.

I probably should get a code reader.
Coehawk is offline   Reply With Quote
Old 12-20-2021, 04:17 PM   #16
Coehawk
Junior Member
Coehawk is a jewel in the roughCoehawk is a jewel in the roughCoehawk is a jewel in the rough
 
Coehawk's Avatar
 
Join Date: Dec 2007
Location: Cedar Rapids, IA
Posts: 25

1999 SW2
1995 SL1
Default Re: SES light blinking

Okay, got it scanned at Advance Auto and it came back P0122 throttle/pedal position sensor a circuit low input.

Looking up the symptoms, this seems to fit as much as anything.

We'll see if this repair does the trick.
Coehawk is offline   Reply With Quote
Old 12-23-2021, 09:12 PM   #17
TomM96
Master Member
TomM96 has a spectacular aura aboutTomM96 has a spectacular aura about
 
Join Date: May 2004
Location: Long Island, NY
Posts: 2,101
Default Re: SES light blinking

Does your '99 have the plastic intake manifold back adjacent the firewall,
and a small (coffee-can style) pre-cat on bottom of the exhaust manifold?

OldNuc suggested that a used-junkyard ThrottlePositionSensor might be
better than new ones (unless OEM, which best).

I bought a couple new aftermarket TPS in 2019. I judged the Standard
Motor Products and NGK looked OK ... but I have not yet replaced them on my 2000SW2 with Cali emissions.

Advice from a mechanic: Be careful using throttle body cleaner, to
Not contaminate the position sensor with the solvent.
TomM96 is offline   Reply With Quote
Old 12-24-2021, 01:26 AM   #18
Waiex191
Master Member
Waiex191 is a splendid one to beholdWaiex191 is a splendid one to beholdWaiex191 is a splendid one to beholdWaiex191 is a splendid one to beholdWaiex191 is a splendid one to beholdWaiex191 is a splendid one to beholdWaiex191 is a splendid one to behold
 
Waiex191's Avatar
 
Join Date: Oct 2016
Location: Poplar Grove, IL
Posts: 3,413

1999 SL2
1998 SC2
Default Re: SES light blinking

Quote:
Originally Posted by TomM96 View Post
Does your '99 have the plastic intake manifold back adjacent the firewall, and a small (coffee-can style) pre-cat on bottom of the exhaust manifold?
Just for reference my '99 has the aluminum intake and the pre-cat. I think the plastic intake manifold was a 2000+ thing.



...
Bryan Cotton
'99 SL2, 5SP bought new
Rebuilt at 204,067 September 2017
Engine, subframe, diff pin mod, brake lines, headliner, alternator, and so on!
'98 SC2, 5SP bought 2018
Waiex191 is offline   Reply With Quote
Old 12-27-2021, 05:45 PM   #19
TomM96
Master Member
TomM96 has a spectacular aura aboutTomM96 has a spectacular aura about
 
Join Date: May 2004
Location: Long Island, NY
Posts: 2,101
Default Re: SES light blinking

Thanks for the photo of the Al manifold !

I made great haste to view it soon -- in case it would mate up on
my 2000, in which case I'd retire my plastic.

So the '99 has Gen-2 induction, but Gen-3 exhaust ... must have
been some staff meetings to agree to that !
TomM96 is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SES light blinking tmaugham S-Series General 3 01-03-2011 11:32 PM
blinking SES light countrygirlcna S-Series Tech 15 04-07-2010 08:41 PM
Blinking SES light... mdurisseau S-Series Tech 13 03-17-2010 07:43 PM
Blinking SES light saturncrzy S-Series Tech 4 03-19-2009 11:54 AM
Blinking Passlock light when off ribbon Vue Tech 2 11-03-2008 09:15 PM


All times are GMT -4. The time now is 09:53 AM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
SaturnFans.com. The Saturn Enthusiasts Site.