Hello
Features of the Circuit
* By any chance if high combustion temperatures are created by oxides of nitrogen then an Exhaust Gas Re-circulation EGR system which is the chief feature of this system will be boosted to counter this.
* This is done by supplying small amounts of exhaust gases back into the combustion chamber.
* Combustion temperatures are minimized as soon as the air/ fuel mixture dilutes the exhaust gases.
* The EGR valve has been specially designed to generate exhaust gases to the engine without using intake manifold vacuum.
* This valve regulates exhaust flow entering the intake manifold from the exhaust manifold through an orifice with an ECM controlled pintle.
* The pintle position is monitored by the ECM using inputs from the Throttle Position (TP) and the Manifold Absolute Pressure (MAP) sensor.
* This task over, the ECM then directs the EGR valve to operate as necessary by controlling an ignition signal through the ECM.
* The ECM further monitors the results of its command through a feedback signal.
* The desired EGR position can be checked with the help of a scan tool.
* A voltage signal representing the EGR valve pintle position is sent to the ECM by a 5 volt reference and a ground to the EGR valve.
Ratchet Straps
This post has been edited by DaviesBrown: Oct 6 2009, 01:05 AM
Amica Exhaust Trouble
Sep 4 2009, 07:02 AM
