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mike100 · 01-17-2015

At this point I would ask you to check the obvious:

Is there actually vacuum in the line from the pump to the map sensor under the ecm? I t'eed in a vacuum gauge on mine and saw that it makes about 13" of vacuum when the pump runs. This is what you need to have there other than reprogramming the vacuum number in the computer code to be atmospheric pressure. If the pump is weak or leaking, maybe it really is reporting a code 61 because of not enough suction. Not sure if you said if Bill had checked that. Other possibility is a corrupted program on the chip or a bad ecm (too bad you don't have one to swap).

My last question (to anybody who knows) is why you would need to leave the port solenoid plugged in? Does the ecm monitor current/voltage to that device or is it just better to have it plugged in to not have an open circuit??

01-17-2015	#14
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: help still have secodary problems At this point I would ask you to check the obvious: Is there actually vacuum in the line from the pump to the map sensor under the ecm? I t'eed in a vacuum gauge on mine and saw that it makes about 13" of vacuum when the pump runs. This is what you need to have there other than reprogramming the vacuum number in the computer code to be atmospheric pressure. If the pump is weak or leaking, maybe it really is reporting a code 61 because of not enough suction. Not sure if you said if Bill had checked that. Other possibility is a corrupted program on the chip or a bad ecm (too bad you don't have one to swap). My last question (to anybody who knows) is why you would need to leave the port solenoid plugged in? Does the ecm monitor current/voltage to that device or is it just better to have it plugged in to not have an open circuit??