Service Engine Soon light with P0135 code on 2003 Pontiac Montanan

Tiny
XJSHEN
  • MEMBER
  • 2003 PONTIAC MONTANA
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 64,000 MILES
After get battery replacement service in GM dealer, I got 'Service Engine Soon' light on dash board with code p0135 on my montana. Before that my car have not had any problem.
Once clear the code p0135 and removed Service Engine Soon light, but after runabout 17 mile the Service Engine Soon light comes up again.
If anyone have good idea on the problem? What could be problem and How to fix it?
Thanks any comment and help! Except following comment:

xjs

There are so many possible causes I can not figure them out.

Tuesday, April 8th, 2014 AT 8:43 AM

6 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Did you troubleshoot the code? Did you do any repair? 02 heater circuit, bank 1 sensor 1.
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Tuesday, April 8th, 2014 AT 9:15 AM
Tiny
XJSHEN
  • MEMBER
  • 218 POSTS
Did you troubleshoot the code? Did you do any repair? 02 heater circuit, bank 1 sensor 1.
No. I only cleared code. But service engine soon light comes again after about 17 mile run.
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Tuesday, April 8th, 2014 AT 9:52 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Oxygen sensor, bank 1 sensor 1, heater circuit, according to the code #, the oxygen sensor is in the exhaust.

Oxygen sensor is part of a tune-up. Could be faulty sensor, could be issue with wiring circuit?
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Tuesday, April 8th, 2014 AT 10:43 AM
Tiny
JDL
  • MECHANIC
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The code will return if you didn't fix the problem.
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Tuesday, April 8th, 2014 AT 10:45 AM
Tiny
XJSHEN
  • MEMBER
  • 218 POSTS
Thanks!
GM shop replaced with new part free after I purchased from Advancer Autoparts $27.
Thanks GM shop! It is reasonable service.
Steven
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Thursday, March 12th, 2015 AT 4:43 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hey, glad you got it fixed.
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Friday, March 13th, 2015 AT 9:24 AM

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