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the e.g.r. is usually located just to the left of the distributer,sometimes mounted to the back of the block.its a diafram looking thing..thats your emission gas regulater.you can follow your vacume line off your distributer to the e.g.r...
i believe that there should be an emission sticker under the hood that shows emission components and vacume hose routing.if you look at it it should show you the area the egr is located.usually located in the centre of the motor on the back side of the intake(towards the firewall side of the intake)
Just find a vacume hose that has vacume to it when you accelarate with car running pull a vacume hose off from carburator check by putting your finger or a vacume gage to it to see if you got vacume if not accelarate the carb by pushing accelarator (left side of carb driver side) if you have vacume when you accelarate you can use that vacume line
You do not need to connect the three vacume hoses to the EGR just find one that has vacume to it upon accelaration with the car running pull a vacume hose off the carburator with a vacume gage or your finger check to see if you got vacume if not accelarate carb if you do connect vacume line to EGR
Use a vacuum pump to operate the EGR, at idle. If it stalls out then the egr valve is fine. If there is a vacuum leak then you found a problem in the EGR Valve diaphragm in that it is leaking air (not hold vacuum).
If there is an electrical problem with the EGR Valve Solenoid, then it will be picked up by the computer.
check the fuel pressure regulator by unpluging the vacume line to it you should hear the idle change, if it doesnt then its bad.If its ok then i would start checking the vacume lines to the egr ,and check the egr itself.
If you are sure the valve is working and the passage is clear....it should stall the engine when you put vacuum to it while idling, then you may have a bad MAP sensor. There was a problem with them on this year. Sorry, I don't have the specs for the modulator with me, I'll try and dig up some info later today. The reason I said MAP sensor; the computer uses the signal from the MAP when it runs the diagnostic to check EGR operation. I'll add to this solution later today, in the meantime, does applying vacuum to the EGR stall the engine? If not, you'll need to remove it and clean out the intake manifold.
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