Not Accelerating properly?

2001 INFINITI I30
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GRAVESJERRY
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Transmission problem
2001 Infiniti I30 6 cyl Automatic 175,00 miles

Yesterday, after driving about 20 miles at 60-70 mph I stopped. When I started the car again and began to accelerate, it would not go above 20 mph. It acted as if it were in low gear (which it was not). I drove slowly....around, making a few stops and turns and it self corrected. After stopping for about 30 minutes, I returned home and did not have the problem on the return trip.
May 4, 2009 at 3:30 PM
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LONGHORN055
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I have the same problem with my 2001 Infiniti I30. When that happens (the car won't go above 20mph, although the RPM goes to 3k and beyond), I just turn the car off and on again. Seems like there's an Infiniti bulletin that says this problem is related to the control valve.. But I don't know yet

Have you find out anything since you posted your question?
Jul 28, 2009 at 11:14 AM
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DAVID MODESTE
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What causes the transmission to downshift going into 2nd gear or 20 MPH? I need help.
Nov 12, 2022 at 8:56 AM
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STRAILER
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This sounds like the turbine sensor is going out, but we should run the codes to see what comes up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is the location of the sensor just in case you need it. Check out the images (below). Please let us know what happens.
Nov 12, 2022 at 9:48 AM