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1990 Mustang 5.0 EGR Problems?

1272 Views 1 Reply 2 Participants Last post by  law64
I have a 1990 Mustang 5.0 that will shut down for no reason. I have run the code scanner on it and I keep getting #34 (EGR). I have replaced the Valve, the Sensor and the Vacuum Solenoid and it has not resolved the problem. Anyone have any suggestions???
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If you have custom exhaust, the sensors may be reading inaccurately if the cats are removed. Also check the fuel pump.
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