reduce engine power light came on then it slowed down on 2003 Chevrolet Trailblazer

reduce engine power light came on then it slowed down

by in Anderson, SC on October 24, 2010
1 answer 1 comment
ANSWER by on October 24, 2010
First place to start is to retrieve trouble codes stored in the computer of your car. A scan tool is required to retrieve the codes and see where that leads. If the Check Engine Light/Service Engine Soon light illuminates while you are driving, the car's on board computer sees a fault in the engines management system that is causing an excess amount of pollutants to be emitted from your car. This could result in engine damage if left neglected. Some problems that can cause the Check Engine light to stay on may take two "drive cycles' to complete before illuminating the Check Engine Light. The computer sees a problem and looks for an identical set of circumstances to occur to confirm that it has indeed seen a problem before turning on the light. A Check Engine light that continually flashes while you are driving is serious and is a sign that the computer sees a problem that seriously risks damaging the catalytic converter which may result in an expensive repair or even may cause a fire! Diagnostic codes are stored in the vehicle's computer and can be retrieved using a scantool that communicates with the computer in your car. We have in our Repairpal website an encyclopedia with in depth articles about computer, and computer control systems, emission and driveability problems.
COMMENT by on August 29, 2015
My computer reader port hook up whatever its called does not work so what usually causes the reduced engine speed light to come on???

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