ONLY GOES IN 1ST AND FOURTH GEAR SOMETIMES

  • Tiny
  • squril
  • 2008 Hyundai Santa Fe
  • 63,000 miles

When I start it then usually doesn't again when I take off from next stop tech. Changed input and output speed sensors and map sensor and still doesn't run right check engine light on something electronic but what could it be its automatic notice gears on dash through the shiftronic

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Sunday, October 14th, 2012 AT 8:25 PM

23 Replies

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,556 posts

What is the code number?

Rolling over gears could be electronic but we need the code

Roy

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Sunday, October 14th, 2012 AT 8:31 PM
  • Tiny
  • squril
  • Member

Code cam up output sensor again but now it has to be deeper tech changed input and output sensor brand new

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Monday, October 15th, 2012 AT 1:33 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

We need the EXACT code number, not just the description.

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Monday, October 15th, 2012 AT 7:20 AM
  • Tiny
  • squril
  • Member

Before the output and input sensor and map sensor were changed the codes were p0722 and p1107. Any chance you can be the trans fluid sensor I seen a guy online have almost the exact same symptoms and the tech told him it was the trans fluid sensor does that make sense

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Monday, October 15th, 2012 AT 11:51 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

A code does not necessarily mean a bad sensor. Any loose connections with wiring, broken wires or a bad PCM can be the cause.

P0722 - Output Speed Sensor Circuit, no signal.
P1107 - MAP sensor short or intermittent low voltage.

For both problems it could be the wirings that is at fault. Any loose or contaminated connections can cause that.

After replacement of the sensors, are the trouble codes the same?

The MAP sensor should not affect the transmission shifting but can cause erratig idling, stalling or difficult starting.

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Monday, October 15th, 2012 AT 12:25 PM
  • Tiny
  • squril
  • Member

P0722 only came up for output sensor after install

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Monday, October 15th, 2012 AT 1:39 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

Recheck the sensor and its connector. Ensure the wires are not broken as they can be brittle and removal installation can break.

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Monday, October 15th, 2012 AT 3:14 PM
  • Tiny
  • squril
  • Member

I had a technician do it is there anyway I can look under the truck to see where the sensor and wiring is, or is it too hard to get to , and I need to take it to a tech. Again

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Monday, October 15th, 2012 AT 3:50 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

It is not too difficult to get to but you might need to remove the battery and air cleaner.

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Monday, October 15th, 2012 AT 4:07 PM
  • Tiny
  • squril
  • Member

Do you think that most likely my problem or still other possibilities? Here I thought the sensors were under the car

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Monday, October 15th, 2012 AT 4:52 PM

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