Question about 2002 Isuzu Axiom

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I have problems with power reduction and review it with the computer but sheds no fault code, and I made several changes but it is not

Reducepower

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All good answers so far but one question - does the motor rev up fast (in gear) but just no get up and go? You may have slippage in the transmission or torque converter. If it's a stick could be the clutch but that would most likely smell very bad as well.

Posted on Nov 26, 2014

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Assuming the enine is not just worn out, the most common cause for lacking power with no check engine light is a restricted exhaust system. Baffles inside the muffler can break or the catalytic coneverter media can break up and cause a problem. Sometimes you can tell just by shaking the exhaust system. Also, if an air filter is plugged it can have the same effect.

Posted on Nov 26, 2014

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There are several possibilities for power loss. W/O any details you may want to have your vehicle checked out by a reputable mechanic. Assuming that you're referring to a vehicle, you need fuel, spark, and compression in order to have power, any one of those will affect power. A good mechanic will be able to determine where the deficit is. If the car has a lot of miles, it may be time for a rebuild or swap or it may be something simple like clogged injectors, fuel filter, or bad plugs. That's why good mechanics get paid the big bucks!

Posted on Nov 26, 2014

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Traction control lights come on dash in Holden Captiva 2010 diesel lack of power


when the traction control is activated , there is a reduction of power from the engine to compensate for that lost traction control
run the fault codes , repair the reason for the traction control light and then reset the computer using a scan tool and the engine power will return

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I have problems with power reduction and review it with the computer but sheds no fault code, and I made several changes but it is not

Oct 14, 2014 | 2002 Isuzu Axiom

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Why engine power reduction is lit on cluster?


There is a fault that affects the engine/transmission and to run it in full power mode will cause destruction to either or both. It is in limp home mode. Run fault codes and find the sensor that has turned the ECM to low power. Check oil level and coolant level at the radiator not the reservoir.

Nov 08, 2013 | 2004 Chevrolet Avalanche

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Intermitent lose of power ( as if starved of fuel) Have changed Lamda sensor?


Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
One last comment, defective Oxygen sensors will not cause a loss of power, NEVER, they are just reading a symptom of the problem, they are not the problem, 35 years of experience tells me that.

Aug 27, 2012 | 2006 Nissan Micra 1.2

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Se enciende la luz power reduction y el carro avanza lento "Power reduction light comes on and the CAR drives slowly" (lacks normal power)


I have problems with power reduction and review it with the computer but sheds no fault code, and I made several changes but it is not

Jun 02, 2012 | 2001 Isuzu Rodeo

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Wat does the malfunction light mean is it sereous


There are currently over 600 possible "generic" OBD Diagostic Test Codes (DTCs - also known as "fault codes") and several hundred "manufacturer-specific" DTCs that are possible causes of the malfunction indicator light to come on.
Some of the possible causes are not very serious. Others can cause severe damage to your car if you continue to operate it without correcting the cause of the DTC.

In short, you must scan your onboard computer network to retrieve the DTCs that have caused the light to come on. Until this is done and you have the DYC numbers available, NOBODY can tell you if this particular problem is serious or not.

Please also review the following article:
Why Is My Engine Light On?

Apr 11, 2012 | 2005 Hyundai Getz 1.1

1 Answer

In my 2007 tahoe power reduction message comes on what could be the problem


Your Tahoe goes into "Power Reduction Mode" to keep you from continuing to operate the vehicle with an OBVIOUS problem and destroying high-dollar parts like catalytic converters, cylinder heads, etc.. Yeah, the old days of simply ignoring Check Engine lights are over.... The manufacturers have made it so the engine will go into reduced power mode and FORCE you into properly maintaining your vehicle.

(Not saying that you don't maintain your vehicle...Just pointing out that you can thank all of those people that continuously run around with warning lights SCREAMING all over their dash for the wonderful little "Reduced Power Mode" feature.)

As for what could be actually causing thie problem? Well, just let me say that the last time I counted, there were over 600 "generic" OBD fault codes available for most cars (80% of which will turn the Check Engine light on long before reduced power mode takes place), and several hundred more "vehicle specific" fault codes that have not yet made the generic code list.

So, to put it simply, you will have to scan your computer network and gather all the fault codes and perform fault code diagnostics to determine the actual cause of your problem.

Jan 10, 2012 | 2004 Chevrolet Tahoe

1 Answer

While driving, my sportage will unexplainably shut off. It will restart immediately after pulling off the road. Any ideas would greatly be appreciated. Thanks.


It could be caused by several things. The place to start would be to scan your Engine Control Module (ECM) to see if it is storing any fault codes. If there are no fault codes present, then I would try replacing the Crankshaft Position Sensor (CKP) only because this is common and many times will not set a code when it causes the engine to die.

I do not recommend replacing ANYTHING before the computer system is checked for codes and any fault codes are properly diagnosed. Replacing parts without proper diagnosis usually ends up being more expensive than taking your vehicle to a professional shop.

Please also review this article:

What Else Could Be Wrong?

Jul 10, 2011 | 2001 Kia Sportage

1 Answer

I have a 2006 Chev impala. Engine power reduced. I have had the accelerator pedal changed, the housing for it changed, and replaced the computer and paid to have it "relearned," Still having...


There are several causes for this, sadly in your case none of them were addressed at all.

In any case, changing the accelerator pedal wouldn't help with that particular problem unless it was
broken in such a way as to prevent it from being pushed down.

A reduction in engine power is part of the engines' computer (PCM) program to prevent damage. The root cause of the power reduction is what needs to be serviced. That is why even after a new computer you still have the problem.
On a GM vehicle with the factory programmed PCM, reduction in engine power *if that really is what your vehicle is doing* is sometimes referred to as "abuse mode." If at any time there were any incidents of doing a full throttle start, this mode and thus it's programmed reduction in engine power would be enabled.
Another cause of reduction in power does not have to pertain to a PCM program but rather the engines' running condition. Bad spark plugs, plug wiring, fuel system problems, gross exhaust leaks or engine air intake problems will cause loss of power.

I thought it might also be of service to you to remind you to carefully review your warranty, as the engine computer (PCM) is part of the emissions system and thus covered 100% far beyond the powertrain warranty required by EPA law.

Jan 12, 2011 | 2006 Chevrolet Impala

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