Talbo Posted May 26, 2017 Share Posted May 26, 2017 Hi All, just tried to manually open my EGR valve using a jumper wire to the ground side switched control wire. If would only open momentarily when I removed the jumper wire connection and wouldn't open or stay open when connected. can anyone shed any light as to why this is? i have good ground and 5v ref cheers pete Quote Link to comment Share on other sites More sharing options...
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