Re: PING again. Tested Fuel pressure. Came out ok.
 

With higher fuel pressures and better electronics, the PCM handles all that now.


In message <JxX2tWiP5BNp-pn2-xHxPWZKwn04M@anon.none.net>, "Will Honea" wrote:

>Every one of the Jeep MPI's call for 40 PSI until vacuum builds, then
>back off to 30PSI. Hmmm... wonder how the new ones with the regulator
>in the pump manage that?
>
>On Tue, 7 Oct 2003 05:23:09 UTC L.W.(ßill) ------ III
><----------@cox.net> wrote:
>
>> Every electronic fuel injection I know of runs forty pounds, screw
>> it down.
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> William Oliveri wrote:
>> >
>> > Hi all,
>> >
>> > The Pinging problem continues. I tested the fuel pressure today and it
>> > comes out at or above what Hesco recommends:
>> >
>> > Hesco = 30 psi at idle
>> > Mine = 31 -> 32 psi at idle
>> >
>> > Hesco = 34 -> 38 when driving
>> > Mine = "Hose not long enough to stick out of the hood to see to test"
>> >
>> > So I couldn't test when driving unless I take the hood off which I'm not
>> > opposed to doing I just didn't have time this evening.
>> >
>> > So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
>> > Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
>> > to have then doesn't that leave that one out?
>> >
>> > Does this mean the 4.0L head is the only fix?
>> >
>> > Agggghhhh :-(

Re: PING again. Tested Fuel pressure. Came out ok.
 

With higher fuel pressures and better electronics, the PCM handles all that now.


In message <JxX2tWiP5BNp-pn2-xHxPWZKwn04M@anon.none.net>, "Will Honea" wrote:

>Every one of the Jeep MPI's call for 40 PSI until vacuum builds, then
>back off to 30PSI. Hmmm... wonder how the new ones with the regulator
>in the pump manage that?
>
>On Tue, 7 Oct 2003 05:23:09 UTC L.W.(ßill) ------ III
><----------@cox.net> wrote:
>
>> Every electronic fuel injection I know of runs forty pounds, screw
>> it down.
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> William Oliveri wrote:
>> >
>> > Hi all,
>> >
>> > The Pinging problem continues. I tested the fuel pressure today and it
>> > comes out at or above what Hesco recommends:
>> >
>> > Hesco = 30 psi at idle
>> > Mine = 31 -> 32 psi at idle
>> >
>> > Hesco = 34 -> 38 when driving
>> > Mine = "Hose not long enough to stick out of the hood to see to test"
>> >
>> > So I couldn't test when driving unless I take the hood off which I'm not
>> > opposed to doing I just didn't have time this evening.
>> >
>> > So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
>> > Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
>> > to have then doesn't that leave that one out?
>> >
>> > Does this mean the 4.0L head is the only fix?
>> >
>> > Agggghhhh :-(