SPONSORED LINKS

1995 Saturn SC1 fast idle

Tiny
BSARAINO
  • MEMBER
  • 1995 SATURN SC1
  • 4 CYL
  • FWD
  • MANUAL
  • 167,000 MILES
I used fuel injecto cleaner and filled my tank. Now its idleing at 2500 rpm and stays in that area even after it warms up. Should I try a new oxygen sensor.
Thursday, October 21st, 2010 AT 7:45 PM

5 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Was the problem present before you tried your concoction?

I would look for a vacuum leak first.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, October 21st, 2010 AT 7:49 PM
Tiny
BSARAINO
  • MEMBER
  • 4 POSTS
After using stp fuel injector cleaner and filling my tank the car started to idle at about 2500rpm and stayed that way after warm up. Should I try replacing the oxygen sensor.
Was this
answer
helpful?
Yes
No
Thursday, October 21st, 2010 AT 8:12 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
I wouldn't replace the o2 sensor unless there is good reason. I doubt the STP treatment is related.

Should check for codes, if none present I would next look for a vacuum leak. I have seen the engine coolant temperature sensor cause odd things like this as they crack.


https://www.2carpros.com/forum/automotive_pictures/30961_saturn_CTS_4.jpg

Was this
answer
helpful?
Yes
No
Friday, October 22nd, 2010 AT 4:55 AM
Tiny
BSARAINO
  • MEMBER
  • 4 POSTS
I cleaned the oxygen sensor and it runs smoothly now
Was this
answer
helpful?
Yes
No
Saturday, October 23rd, 2010 AT 2:59 AM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Good News.I really wouldn't have expected it. Must have been one heck of a lot of carbon.

I have a hard time assuming that because x happened that is is related to y. This was truley related.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, October 24th, 2010 AT 6:13 AM

Please login or register to post a reply.

Related Engine Idle High Content

VIEW MORE

Sponsored links