Relearn throttle body

2003 suburban,reduced engine power message come on,changedhrottle body and went through relearn process,seemed ok but after it sat over night its now doing the same thing

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John Jon

1114 Answers
Posted on Dec 24, 2008

SOURCE: check engine light "reduced enging power" message?

hook it up to OBD 2 scan retrieve fault code and go from that point!

Anonymous

3533 Answers
Posted on Mar 21, 2009

SOURCE: 2003 GMC throttle position sensor

try www.schramauto.com or call them at 1-800-292-1032

Dar

2007 Answers
Posted on Apr 27, 2009

SOURCE: Losing power in 2003 Chevy Suburban Z71 (80,000 mi)

Fuel filter plugged.

Anonymous

1 Answer
Posted on Sep 10, 2010

SOURCE: 2003 Silverado 1500 HD 6.0 Liter starting issues

I am having the same issues on my Chevy 03 HD 1500. It takes at least two turns of the ignition to get it going. I have replaced the battery, Fuel Filter, Fuel Engine Relay and I am now Replacing the Starter Engine Relay. If you have any other suggestions let me know! I will share as well. Also, last couple of days Oil Pressure Gauge is acting strange. It will read from 1/4 point to 3/4 point while driving. Working on that as well.

JOHN LAPIER

2602 Answers
Posted on Jan 04, 2011

SOURCE: p2135 code reduced power light

Thats a throttle body code p2135 that and p2101 unfortanatly are saying that the whole throttle body needs to be replaced do to an electronic malfuntion that is not a serviceable part or sensor.

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Reduce power light on has no throttle and keeps giving throttle accuator cdes

2003 Silverado 2500HD REDUCED ENGINE POWER - Discussion on Topix

www.topix.com > Top Stories
Dec 28, 2009 - 20 posts - ‎12 authors I have replaced the throttle body, had the wires re-connected and .... The gauges all went wild and reduced engine power displayed on the dash. I looked it .... The truck just went to idle for no reason and it keeps happening. 2003 Chevy Trailblazer-CHECK ENGINE LIGHT AND ...
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Reduced Engine Power Message Displayed on GM Vehicles

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Dec 10, 2012 - Tech Tip: Reduced Engine Power Message Displayed on GM Vehicles ... Model year 2008-'10 vehicles must have the engine control module (ECM) reprogrammed ... Do not drop the electronic throttle control components.

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Oct 28, 2015 • Cars & Trucks

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Ive got a 2003 chevy 1500 4 wheel drive it keeps going into reduced engine power it has electrion throttle ive replace throttle body,gas pedal,throttle actuator control,and the wireing pigtail to the...

cam or crank sensor failing

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Oct 16, 2013 • 2003 Chevrolet Silverado 1500

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2003 saturn l-series l300..I replaced throttle body and was still getting reduced power and started blowing controls b 10 amp fues when key was on so i traced it to the ecm/pcm. Replaced it and then did...

Disconnect the throttle body wire and restart,ECM replacement?Do you still have the old ECM?I belive the problem may not have resided in the ECM,When you get a reduced power its doesnt mean a bad ECM The purpose for reduce power is to protect the catalytic convertor,If there is a fault detected in the APP1 or the APP2 a reduce power is ordered.What mediates this is the TPS sensor APP1 goes high and APP2 goes low,If you have a 2003 ECM or saturn this is not a drop in ECM.Your particular year is CAN,means you need to flash it.

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Nov 05, 2012 • 2003 Saturn L-Series

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2003 chevy trailblazer engine dies when ac/heater switch is turned on but blower motor is unpluged

The throttle body needs to be cleaned, grime in this area prevents the throttle plate from closing completely and allowing air to enter, making the air/fuel mixture lean. Make sure to clean the front and back sides of the throttle body. Also, disconnect the battery during the cleaning process to allow the computer to reset and relearn to the cleaned throttle body.

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Oct 13, 2012 • 2003 Chevrolet TrailBlazer

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Reduce engine light came on in my 2002 envoy and it feel as if the truck is not getting any power, why is that? the truck slowed down so i pulled over cut it off an started it back up. after starting back...

Reduced engine power is just like a safe mode. First things first, clean your throttle body. It's possible the butterfly is sticking. Disconnect the battery, clean your throttle body with throttle body cleaner, must be nice and shiny. When finished, drive around for 20 minutes or so with all accessories off. This will allow the computer to relearn a properly functioning throttle body.

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Mar 25, 2011 • 2002 GMC Envoy

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What causes reduce engine power light comes on?

A lot of times it's just a dirty throttle body, which will cause the reduced engine power or safe mode. Clean it with throttle body cleaner with the battery unhooked. When finished, drive around for 20 minutes or so, so the computer can relearn a properly functioning throttle body.

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Feb 22, 2011 • 2004 Chevrolet TrailBlazer

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The reduce engine light comes on at 50 mph what could the problem be

DTC P0120 P0220 P1516 P2135 these should be the problem codes.
2003-2006 Chevrolet Avalanche, Corvette, Express, Monte Carlo, Silverado, SSR, Suburban, Tahoe, Trailblazer. for reduced engine power. p0120 is throttle position sensor, ( tps ). p0220 is relates to tps, p1516 tps is out of range. p2135 is a throttle body code, the throttle body needs replaced. but before you do it replace tps first to see if it takes care of the other codes. have a good day !!

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Feb 18, 2011 • 2003 Chevrolet TrailBlazer

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2answers

I got code p2176 I changed out the tps still got same problem did not have this problem with other engine just changed engine out now cant seem to get this code off causing the car to rough idle and low...

P2176=Throttle Actuator Control System - Idle Position Not Learned
Did you use all you old sensors,or is some of them from the new engine,I would swap out the IAC sensor or check for wires not hooked up.
If it can't relearn to idle the Idle air control might be different then your old one,but its not registering with the computer

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Dec 17, 2009 • 2006 Chevrolet Impala

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2005 suburban stabilatrac disabled

The Reduce Engine Power problem on my 03 Suburban went away when I had to replace the fuel mixing sensor. I damaged the sensor by topping off with E85 (ethanol) by mistake late at night. The vehicle just would not turn on in the morning. The vehicle had to be towed to the dealer. I was in Carlsbad NM about 800 miles from home. I had no choice but to pay $1,100 to get it fixed. At the same time the Reduce Engine Power problem went away. And thanks to God it has not come back for nine 9 months now.

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Aug 12, 2009 • 2003 Chevrolet Suburban 1500

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3answers

Losing power in 2003 Chevy Suburban Z71 (80,000 mi)

Fuel filter plugged.

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Apr 27, 2009 • 2003 Chevrolet Suburban

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