What does this mean??? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-31-2003, 11:57 PM   #1
Junior Member
Thread Starter
 
Join Date: Jan 2003
Location: LI NY
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
no luck is on a distinguished road
Default What does this mean???

Just found the site today seems cool...sorry I'm asking a question right off but I'm lost...95 Bonneville...while driving around 75mph today the car shuttered and the check engine light came on. Car continued to hesitate till I got to my buddies shop. I shut it off. After a few minutes I started it up. No check engine light and ran fine. Ran a scan came up with...631...EST not toggling...What the hell does this mean...Please help...Thanks guy'*....Matt
no luck is offline   Reply With Quote
Old 02-01-2003, 12:58 AM   #2
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default Re: What does this mean???

Quote:
Originally Posted by no luck
...631...EST not toggling...
I can't find any specifics on this but 631 EST is something with your ignition system. EST stands for Electronic Spark Timing (according to my '95 service manual). I would be looking in the direction of maybe you Ignition Control Module or maybe even a Knock
Sensor. Hope this helps some...
SSEi95 is offline   Reply With Quote
Old 02-01-2003, 02:29 AM   #3
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Could possibly be a crank sensor, too.
willwren is offline   Reply With Quote
Old 02-01-2003, 04:21 AM   #4
Junior Member
Thread Starter
 
Join Date: Jan 2003
Location: LI NY
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
no luck is on a distinguished road
Default

I goofed the code was 361 EST not toggling...not...631. It happened a few months back also. I thought it may be the cam/crank sensor. I just cant find the info on the code anywhere. Thank'* for the input...Matt
no luck is offline   Reply With Quote
Old 02-01-2003, 12:28 PM   #5
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

Quote:
Originally Posted by no luck
I goofed the code was 361 EST not toggling...not...631. It happened a few months back also. I thought it may be the cam/crank sensor. I just cant find the info on the code anywhere. Thank'* for the input...Matt
This error (361) sounded familiar. I went back and checked a problem I had just a few weeks ago. Checkout this link for more info.

http://www.friedpoodle.com/ba/forum/viewtopic.php?t=428
SSEi95 is offline   Reply With Quote
Old 02-01-2003, 01:19 PM   #6
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Cam sensor is out. That'* the reference for fuel injector firing. Ignition firing would have to be the crank sensor. From that link, I think it'* pretty well confirmed. I talked someone through this not too long ago. A couple others here could too. Probably about a 6 hour job for someone fairly familiar with cars.
willwren is offline   Reply With Quote
Old 02-01-2003, 02:06 PM   #7
Junior Member
Thread Starter
 
Join Date: Jan 2003
Location: LI NY
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
no luck is on a distinguished road
Default

It seems that that guy'* problem was the cam sensor...How do I go about testing either of the sensor'*?
I bought the car used a couple of year'* back and have 1yr/12k left on the warranty...don't know if it'* covered or not...
no luck is offline   Reply With Quote
Old 02-01-2003, 02:29 PM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

If this is an ignition problem, you're looking at the crank sensor.

If it'* a fuel delivery problem, you're talking about the cam sensor. By the error code you listed, I'm betting you have a crank sensor problem, Just like Gord.

We better nail this down before you did too far in the wrong direction!
willwren is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
What does the Vin 1 mean on a 97 SE? Twister97 1992-1999 2 04-30-2004 08:03 PM
Does this mean my tranny is slipping? ssesc93 1992-1999 4 04-20-2004 09:40 PM
what does it mean to remove MAF screen? ssesc93 General GM Chat 19 04-15-2004 06:46 PM
What does this mean? Jagman04 1992-1999 13 04-06-2004 03:31 AM
I give up, what does "uber" mean? brminder Lounge 7 04-24-2003 10:04 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:47 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.