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2002 Kia Optima pcm or speed sensor promblems

Tiny
CGALLO30
  • MEMBER
  • 2002 KIA OPTIMA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
When driving the car cold about 10 minutes later the car will kick meduim hard, and the engine light will come on, and then it will be stuck in 3rd gear, but it only does it when the enginge light is on. Codes p0720 and p1529 are what I got with the obd2 reader. The P0720 is for the output shaft speed sensor. The sensor was replaced and the computer was reset with the obd2 code reader, but the engine light came back on and I got the same codes, also car kick the same way, What can I do to fix the problem and Should have the PCM checked?
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Wednesday, September 3rd, 2008 AT 8:05 PM

5 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Code p1529 is a request code for the TCM
and tranny control module need to be checked for codes
p0720 u may have to visit a tranny shop
check wiring harmess and connector plug


https://www.2carpros.com/forum/automotive_pictures/99387_optima_1.jpg

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Thursday, September 4th, 2008 AT 6:25 AM
Tiny
CGALLO30
  • MEMBER
  • 9 POSTS
It turned up, that the car had three sensors, the sensor I replaced the first time wasn't it. I thought I had replaced the output shaft speed sensor, but instead it was the vechicle speed sensor. The car has a output and a input shaft speed sensor, and a vechicle speed sensor.
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Wednesday, September 17th, 2008 AT 1:45 PM
Tiny
JONATAN CABRERA
  • MEMBER
  • 1 POST
I have a 2008 Kia optima when driving it makes a hard Kik and stay in 3rd gear any recommendations on we're to start
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Saturday, March 30th, 2019 AT 9:41 PM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey CGALLO30,

Where are you at with the repair now?
Would you like instructions on how to replace the output shaft speed sensor?

Let us know how you are going and if you have any more questions we can help you with.

Regards, Joe
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Sunday, March 31st, 2019 AT 3:15 PM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey JONATAN CABRERA,

Can you please start a new question for your vehicle issue?

We need to keep each vehicle separate to enable us to effectively monitor the process of diagnosis/repair.

We will get to helping you with your Optima as soon as we can.

Regards, Joe
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Sunday, March 31st, 2019 AT 3:17 PM

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