Having problems with your 1996 Oldsmobile LSS ?

Check engine light comes on. I have clean the MAF sensor at different times and that will correct the problem for a month or two and then it will come on again. I replaced MAF ABOUT a month ago but the car would not run correct at all. I took it back and replace the old one back on and now I find out that the codes have to be deleted when replacing a sensor, but the parts place did not tell me that. I now have codes p0102, p0113x2, and p0171. I cleaned the MAF sensor , the EGR, and with the corr

Posted / edited by AnonymousUser on : 11-12-2017

Answers :

  • Hello Ronnie and thank you for the opportunity to assist you.

  • The problem with after market MAF sensors is they really are worthless. Always use an OEM MAF sensor. If you have the old one try cleaning it up a bit (teminals). I would really like to see what putting an OEM GM MAF sensor and then clearing the codes would do. There are many great deals to be had at the parts store but sensor are not one of them.


  • P0171 is from a vacuum loeak. The MAF sensor code (P0102) is thrown because the PCM is sensing to much air flow in that area. All these codes are indicating that the MAF is either bad, the wiring/connector is bad, or you have a vacuum leak somewhere that needs to be addressed.

  • One thing I recommend is to look for a vacuum leak in the lines somewhere. How does that air intake look to you? Some people swear by a K&N filter I don't like them at all. Are the filter housing and hoses. sealed real well? Any cracks or misalignment? Take some carburator cleaner and with the car running spray around the intake and see if the RPMS pickup at all. If the RPM'S pick up the you have a vacuum leak somewhere.

  1. Look for a vacuum leak you may have not thought of.
  2. Clean the MAF you have real well. (Replace would be recommended with OEM. It really does make a difference).
  3. I would switch air filters to a nice paper one. Parts store aftermarket is fine for this application.
  4. Spray a little carburetor cleaner around the intake and see if the RPM'S pick up. Do this with the car running but after the engine is cooled a bit.
  • For the record a bad PCM could cause this too. But there is much to rule out first.

  • Let me know how this progresses for you. Like my add says I offer free followup questions so reply to me if you need further assistance for this problem.

  • Good luck and thanks for using FixYA.

Regards,Tony
Repair Help & Product Troubleshooting for 1996 Oldsmobile LSS

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