2.9L Deisel won't rev over 2800 RPM - Hyundai Forum - Hyundai Enthusiast Forums

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Old 02-09-2018, 01:42 PM
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Join Date: Feb 2018
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Question 2.9L Deisel won't rev over 2800 RPM

I have been fighting this problem for 8 months. 1st I'll describe what happened and then what I have tried to fix it.
2003 Hyundai Terracan 2.9L VIN KMHNM81XP3U092447

I was driving up a fairly steep incline and accelerated through the last hairpin curve and everything was normal, no smoke
When I got to level ground 200 meters later my car would not rev over 2700 RPM, smoke.
Power band was 2200 - 2500 RPM but no turbo kick in.

Cleaned injectors and changed fuel filter
Replaced timing belt
Replace water pump
Replaced mass airflow sensor
Replaced high pressure fuel pump
Replaced turbocharger
Checked Acceleration Sensor & Actuator [3510042151]

Motor runs very smoothly and quietly
Revs to 2800 RPM
Power band 2100 - 2300 RPM
Turbo does not kick in.
Wallet is $2000 lighter

Any ideas as to what is causing this?
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