Question about Edge Products 2003 GMC SIERRA 2500 HD 85200 Evolution CTS Diesel Progr

Open Question

Getting reduced engine power light and check engine light while driving

Posted by Anonymous on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

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.
26292552-e3dd2fy2eifukirtcxqvw02d-5-0.png

Sep 26, 2016 | 2006 Chevrolet Malibu

2 Answers

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."

Reduced Engine Power Light Wrench Showing Ford Powerstroke Diesel Forum

08 Reduced Engine Power

Regen Reduced Engine Power Light Ford Truck Enthusiasts Forums

Help reduced engine power light comes on

Dec 29, 2015 | 2008 Ford F-250 Super Duty

1 Answer

Reduced engine power


Have the vehicle checked for DTC'S - diagnostic trouble codes ! Do you know what electronic throttle control is ? The gas pedal assembly has electrical connector an sensors inside ,hooked to the PCM / ECM - engine computer . The engine computer uses these position sensors inputs to control the DC motor on the throttle body to open the throttle plate to control the speed . Plus there are position sensors inside the throttle body to input PCM/ECM to see if it's calculations are corect . Your best bet maybe to take it to a qualified repair shop .
Drive by Wire Function and diagnostics by Wells

Reduced Engine Power Mode
When the PCM detects a condition with the TAC system, the PCM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The control module will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.
• Limited throttle mode--The control module will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
• Throttle default mode--The control module will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The control module will perform the following actions:
- Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned off.
- Ignore accelerator pedal input.
• Engine shutdown mode--The control module will disable fuel and de-energize the throttle actuator.

May 12, 2017 | 2004 GMC Sierra Denali

1 Answer

Reduced Engine Power light


With GM vehicles a Reduced Engine Power message has to do with the electronic throttle control .


GM Chevy Truck REDUCED ENGINE POWER Case Study Part 1

May 03, 2017 | Cars & Trucks

1 Answer

I have a 2003 Envoy- GMC. Why does the reduce engine speed light come on


you need to scan you vehicles ECM, there is a trouble code stored there. depending on where you live most parts stores( such as a shucks/orielleys) will have a scan tool they will let you use if the vehicle is in thier parking lot. this should diagnose the issue, provided the battery hasnt been disconnected since then.

Mar 12, 2012 | 2003 GMC Envoy

1 Answer

Dash light says--Reduced Engine Power


You need to have an OBII scan(fault scan) - to identify what sensor triggered computer (light) Reduced Engine Power = rig is in "Limp" mode. So you can drive it to get to repair shop.

Mar 12, 2011 | 2003 GMC Sierra 1500

1 Answer

Getting on interstate when increasing gas pedal (fast)check engine light comes and reduced power light comes on and goes into reduced power,pull over turn off engine and restart ok.Garage put on 2...


Hello, Check the wiring at the throttle body on the motor that drives the throttle plate. Wires can be broken inside the insulation or bad contact at the connector.

Jan 13, 2011 | GMC Envoy Cars & Trucks

3 Answers

My 2002 Isuzu Troopers Check Engine light and Reduced power light came on and the engine ran very slow and sluggish. Checked the next day and check engine light came on and Reduced power light was no...


1295 simply indicates that you were in "get you home" mode. 1515 has to do with throttle position sensor fault. Since it was intermittant I'd check for chafed or broken wiring and loose connections

Nov 10, 2009 | 2002 Isuzu Trooper

1 Answer

Reduce power and check engine lights on


reduced power usally points toward a gas pedal to throttle correlation meaning the drive by wire system is where the problem is

Apr 18, 2009 | 2001 Isuzu Rodeo

2 Answers

04 chevy tahoe


the check engine light you are getting sounds like and electrical problem, have the battery and the alternator tested, and have autozone or the like pull the codes off for you and see if you can figure out what they are....

Jul 06, 2008 | 2004 Chevrolet Tahoe

Not finding what you are looking for?
Edge Products 2003 GMC SIERRA 2500 HD 85200 Evolution CTS Diesel Progr Logo

Related Topics:

264 people viewed this question

Ask a Question

Usually answered in minutes!

Top Edge Products Optics Experts

Michael Sullivan
Michael Sullivan

Level 1 Expert

31 Answers

Lawrence Oravetz

Level 3 Expert

9639 Answers

richie46

Level 3 Expert

12962 Answers

Are you an Edge Products Optic Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...