Question about 2006 Land Rover LR3

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Engine system fault

The display showed engine system fault and power was reduced

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Could b anything with a disco 3. Most likely EGR valve issues. Get scan done to confirm fault. If egr...blank them both off (tdv6) with 2p coins.

Posted on Nov 15, 2013

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Check engine light came on then reduce engine power


When this light comes on it means the computer control module has detected a fault in the system, it has reduced power to avoid any damage to the engine or transmission. You must now have the computer scanned for fault codes, this is done through the diagnostic connector under the dash see photo below.
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Sep 26, 2016 | 2006 Chevrolet Malibu

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I have an 2008 chevy impala as that sometimes give me the message "engine power reduced" "service stabilitrak" WHAT is the problem?


When there is an error with the stability ac system the computer can reduce engine power as a safety precaution. You need to have the stored codes read.

Aug 23, 2016 | Cars & Trucks

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Keep saying engine Power is reduced


major faults in a car or truck will produce this type of message to display in "Mis" display , an example of a major fault is " bank 2 cyl 5 coil fail ring test " this is an example of what a open/bad coil pack on #5 cylinder would show up as , but if you get a code reader an see then you will know the exact cause

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Diesel. Reduce power lite turned on. Shut off engine and started back up - lite is off. Can it be driven?


Jerry, Drive to a good shop. So many things can cause reduced power light unfortunately. The first step would be to get the truck hooked up to a scanner/computer and have the computer scanned for trouble codes. One thing that you could try is to drain the water from the water separator that is mounted on the frame under drivers front door. If the PCM picks up on water, power is reduced until water is removed/drained. It could be an exhaust sensor that is reading faulty. Unfortunately from here its impossible to tell you exactly what the fault is because there are just so many engine sensor inputs that could cause your problem. Check the attached links, forums,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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1 Answer

My 2006 Buick lacrosse reduce power light came on today--what does that mean


Reduced Engine Power
Refer to Throttle Actuator Control (TAC) System Description in Engine Controls - 3.6L or Throttle Actuator Control (TAC) System Description in Engine Controls - 3.8L
TAC System Default Actions/Reduce Power Modes
There are 2 reduce power modes that the engine control module (ECM) can default to if an error is detected in the throttle actuator control (TAC) system. If an accelerator pedal position (APP) sensor 1 or APP sensor 2 circuit fault, throttle position (TP) sensor 2 circuit fault, or if a TP sensor 1 circuit fault is detected with some APP angle, the ECM goes into one of the 2 reduce power modes. In this mode, the engine torque is limited so that the vehicle cannot reach speeds of more than 100 km/h (60 mph). The ECM remains in this reduce power mode during the entire ignition cycle even if the fault is corrected.
If there is a condition with the throttle actuator control circuits, throttle actuator command vs actual position fault, return spring check fault, or a TP sensor 1 circuit fault, the ECM goes into the other reduce engine power mode. In this mode, the engine speed is limited to 2,500 RPM and the 3-6 fuel injectors are randomly turned OFF. At this time the Reduced Power indicator is commanded ON. The ECM remains in the reduce power mode during the entire ignition cycle even if the fault is corrected. Observe, if a TP sensor 1 or throttle actuator control circuit fault is present at the time the vehicle is at idle, with no accelerator pedal angle, the engine may stall.

Jun 21, 2015 | Cars & Trucks

1 Answer

03gmc envoy showing code p1514 and reduced power light on engine shuts down


Type: OBD & your codes

OBD PO 440
OBD PO128

Codes have nothing to do with installing parts

Codes are System Faults only

Codes are used to diagnose a system & component
test to find a problem

Sep 26, 2014 | 2003 GMC Envoy

3 Answers

I just had the transmission in my 2004 trailblazer


There is a harness in the engine compartment that has grounded out or shorted. The message 'reduced power' will flash across your driver information display on your gauge cluster. This is somewhat of a common problem for full size Gm trucks (silverado, tahoe, suburban, etc .) and trailblazer/envoy vehicles.

Sep 26, 2014 | 2004 Chevrolet TrailBlazer

1 Answer

Why would my 2007 bmw 335i showengine fault warning running on reduced power


Is your oil level or radiator coolant level low? It sounds like the engine is going into "Limp Home" mode to save the engine.

Aug 05, 2014 | 2007 BMW 335i Sedan

1 Answer

My 2006 Chevy Tahoe displayed the Reduced Engine power and stability control system turned off. Drove the vehicle home at reduced power never. Temp OK, Battery gage read lower than the normal +14V, Oil...


the post that everybody refuse to read or acknowledge is the first simple instruction
when ever there is a problem , have the fault codes read first
it is free at autozone and other parts shops
then knowing what the problem is you can have it fixed at an accredited service center for less money that fixing what is not faulty costs

Apr 05, 2017 | Chevrolet Tahoe Cars & Trucks

1 Answer

Check engine light & engine reduce power


Take the car to an autoparts store and have them scan the computer for any fault codes stored there. Most parts stores will perform the scan for free. Getting the codes will show what faults in what systems the computer has identified. Hope this helped and best wishes.

Aug 04, 2009 | 2006 Pontiac G6

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