Check Engine/VSC/VSC Off Lights on
12-03-09, 04:56 PM
#1
Driver School Candidate
Thread Starter
Join Date: Dec 2009
Location: CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Check Engine/VSC/VSC Off Lights on
98 GS 300...I know this item has been discussed in detail before but it seems all who had this problem has had something a little different from the rest going on. My problem...Check engine light came a few of days ago, quickly followed by the VSC and VSC Off lights a couple of days later. The car runs "normal for about 20 minutes and then begins to run ruff as if its going to shut off when stopped. As long as I'm moving by applying positive acceleration, it appears to run normal with no loss of power. Only when slowing or stopping does the car begin to run harsh and spit/sputter. Now I read everything from number 6 spark plug to throttle sensor to throttle motor control unit. I think what separates my problem is that I have no loss of power until slowing down or stopping and only after the car has been running for about 20 minutes...any takers on this one...I'll be out of town for the next few days so I can't answer any questions...I think I covered all I can thus far. Thx for any help...
12-03-09, 06:06 PM
#2
98 GS 300...I know this item has been discussed in detail before but it seems all who had this problem has had something a little different from the rest going on. My problem...Check engine light came a few of days ago, quickly followed by the VSC and VSC Off lights a couple of days later. The car runs "normal for about 20 minutes and then begins to run ruff as if its going to shut off when stopped. As long as I'm moving by applying positive acceleration, it appears to run normal with no loss of power. Only when slowing or stopping does the car begin to run harsh and spit/sputter. Now I read everything from number 6 spark plug to throttle sensor to throttle motor control unit. I think what separates my problem is that I have no loss of power until slowing down or stopping and only after the car has been running for about 20 minutes...any takers on this one...I'll be out of town for the next few days so I can't answer any questions...I think I covered all I can thus far. Thx for any help...
go to autozone and get the CEL code read.
12-03-09, 06:53 PM
#3
Yes, read codes. Possible vacuum leak. When you slow down, no throttle = too much vacuum not enough fuel. Run car at idle, listen for hissing take vacuum lines and pull on them visually inspect for rot or off of connector. Spray carb cleaner around to see if engine idles higher. Take off air connector from throttle body spray off throttle body butterfly to clean throttle body. Just some suggestions.
12-03-09, 07:39 PM
#4
i had the same problem as well not too long ago it went from misfires to a vvti malfunction. all i did was a complete tune-up and did the seafoam cleaner after all that and a few full gas tanks later it was gone and now my car is normal again. so i would suggest a real good tune-up change of all fluids and plugs and maybe a fuel injector or seafoam cleaner as well.
12-03-09, 08:09 PM
#5
Lead Lap
iTrader: (5)
Join Date: Jul 2008
Location: CA
Posts: 570
Likes: 0
Received 0 Likes
on
0 Posts
Your best bet is to get the code checked like the others have posted. Regular maintainence is always a good idea (not implying that you don't), just generally speaking. After you find out what the code is post it and someone will help if you still need it.
12-17-09, 09:19 PM
#6
Driver School Candidate
Thread Starter
Join Date: Dec 2009
Location: CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Turns out it needed a good old fashion tune up...complete with new wires and coil pack. Also valve cover gasket replaced. currently running like a champ...thanks!
Thread
Thread Starter
Forum
Replies
Last Post
akafixture
GS - 2nd Gen (1998-2005)
5
02-13-20 05:28 PM
chuckisc
GS - 2nd Gen (1998-2005)
8
11-25-03 06:15 PM
