inj pressure
#11
#15
Ummm,not sure,didn,t really hear them but could be mistaken.
---AutoMerged DoublePost---
Well I went out this morning with the wife to listen for the injectors while cranking and the dam thing started.Like usual it really searched for a idle until you pick the throttle up a bit.I can hear the pump running and the fuel bowl sounds like it is filling.Shouldn't it be pressureized at all times?It is 60 degrees here in mich but won't be in a few months.I checked fuel pressure at the pump a couple of weeks ago and it was at the high side.Any more suggestions would be appreciated!
---AutoMerged DoublePost---
Well I went out this morning with the wife to listen for the injectors while cranking and the dam thing started.Like usual it really searched for a idle until you pick the throttle up a bit.I can hear the pump running and the fuel bowl sounds like it is filling.Shouldn't it be pressureized at all times?It is 60 degrees here in mich but won't be in a few months.I checked fuel pressure at the pump a couple of weeks ago and it was at the high side.Any more suggestions would be appreciated!
Last edited by mod11; 05-21-2010 at 06:43 AM. Reason: Automerged Doublepost
#17
Well I'm at a loss also,so many idea;s with no results,I do appreciate everyones time and effort,I really want to put injectors in it but the cost of them would send me over the deap end if it did not fix it.PHP,if and when I get this pig right would like to have you build me a chip so keep that in mind.If you get any brainstorms let me know.Again thanks
#19
#20
That's my thought, too.
I have fixed MANY starting problems by simply using a digital multimeter set on the min/max function and looking for voltage below 10.8V at the batteries during cranking. I say 10.8 volts because the IDM requires around 10.3-10.7 volts to even command an injection event and there are voltage drops throughout the system that will give an actual IDM/PCM voltage of less than battery voltage.
I have fixed MANY starting problems by simply using a digital multimeter set on the min/max function and looking for voltage below 10.8V at the batteries during cranking. I say 10.8 volts because the IDM requires around 10.3-10.7 volts to even command an injection event and there are voltage drops throughout the system that will give an actual IDM/PCM voltage of less than battery voltage.