SC400 CEL 25 Please Help
#1
Driver
Thread Starter
iTrader: (4)
Join Date: Apr 2009
Location: Georgia
Posts: 141
Likes: 0
Received 0 Likes
on
0 Posts
SC400 CEL 25 Please Help
Hi Guys
I am having problems with my sc4. I am getting terible gas mileage and my exhaust smells a little smoogy. In addition my check engine light intermittenly comes on and goes off. I am not sure how acurate this is but I remember filling up with gas and then the light went off but it came back on when it went to half a tank left. This only happened twice though. Please help.
thanks
I am having problems with my sc4. I am getting terible gas mileage and my exhaust smells a little smoogy. In addition my check engine light intermittenly comes on and goes off. I am not sure how acurate this is but I remember filling up with gas and then the light went off but it came back on when it went to half a tank left. This only happened twice though. Please help.
thanks
#3
This can sometimes happen if your gas cap isn't sealing properly. Do you have traction control and, if so, does the "Trac off" light come on at the same time?
It's most probably your upstream O2 sensors, which should be replaced in pairs. There are lots of threads relating to this.
Good luck
It's most probably your upstream O2 sensors, which should be replaced in pairs. There are lots of threads relating to this.
Good luck
#5
Driver
Thread Starter
iTrader: (4)
Join Date: Apr 2009
Location: Georgia
Posts: 141
Likes: 0
Received 0 Likes
on
0 Posts
This can sometimes happen if your gas cap isn't sealing properly. Do you have traction control and, if so, does the "Trac off" light come on at the same time?
It's most probably your upstream O2 sensors, which should be replaced in pairs. There are lots of threads relating to this.
Good luck
It's most probably your upstream O2 sensors, which should be replaced in pairs. There are lots of threads relating to this.
Good luck
I don't have traction control. Ok I will check it out..
thanks
#6
Driver
Thread Starter
iTrader: (4)
Join Date: Apr 2009
Location: Georgia
Posts: 141
Likes: 0
Received 0 Likes
on
0 Posts
Update and a little more inoformation. I put about 22$ of middle grade gas in my 400 today. I left the car running while I went in to pay for the gas. I then filled and when I got back in car the check engine light went out. What does this mean?
Trending Topics
#10
Lexus Test Driver
iTrader: (6)
Join Date: May 2010
Location: Colorado Springs, CO
Posts: 1,442
Likes: 0
Received 4 Likes
on
4 Posts
^93 octane is enough for me. but when I first bought my car i put in reg and it backfired a couple times when i slowed down but never showed a CEL.....
have you got a diagnostic? it should show up even if the lights not on.
have you got a diagnostic? it should show up even if the lights not on.
Thread
Thread Starter
Forum
Replies
Last Post
Studiogeek
Performance & Maintenance
2
05-01-13 07:14 AM
guku0701
Performance & Maintenance
20
06-17-12 09:22 AM
scfou
SC- 1st Gen (1992-2000)
8
06-27-11 06:28 PM