Alrite spike so i changed the IPW's to 6.2ms and here are the logs of the startup, and idle. LMK what you think? Notice how the cold starts the IPW is high and gradually decreases until it starts? On the hot starts it doesnt do this, its just one IPW the whole time it cranks

 

Pull out your rear seat cushion. It just pops out real easy should take like 5 seconds. If you still cant hear the pump with the rear seat out you may have a problem.

 

Sir-03lances! i will give this a try, thats a good idea! ill report back!

 

I had me, along with one of the techs here listen for the fuel pump to turn on and nether the tech or myself could hear the fuel pump when i turned to the key. We tried removing the seat, and coulndt hear it, and also removed the gas cap to listen through there and couldnt hear it there either, hmmm... this along could be the problem? Maybe the pump only tuns on right before the car starts? Not sure..

 

Try keeping the key on for awhile see if it turns or and or attempt starting it and have someone feel for it activating.

I can probably track down something in code that preventing the fuel pump from firing if thats the case.

 

I think it may be mechanical? i have the techs looking at my fuel pump relays and the fuel pump itself, when disconnected releved only 2 drops of fuel with no pressure, so somethings not right here..

 

If it doesn't come on thats doesn't mean its purely mechanical. The ECU controls when the fuel pump is activated.

 

Yeah RS the pump and fuel pressure regulator end relays all check out fine mechanically, it must be something in the ECU then right?

 

I'm thinking so i'm disassembling the MUT command routine right now to trace back where the ECU turns the fuel pump on I should get some answers sometime just not sure when.

Must be something in the ecu that says it doesn't have to turn on the pump when its hot is my guess even though the pressure is gone.

 

Yeah that makes sense. Im thinking maybe the car starts when cold from the little gas thats in the fuel rail, once it starts the fuel pump turns on an no problems, (becuase when we checked for the fuel pump turning on, the car was cold) And when hot there must be a code somewhere that like your saying might tell the fuel pump not to turn on or a delay time at a certain temp, something of that nature, let me know what you find spike

 

OK so i'm sorta understanding how this mut command system works but its still got a ton of weird stuff in it.

It will be faster if you can log MUT 9A and 9B for me I can write up a xml if you need it but i think evoscan has it already just look for request 9a and 9b

 

Spike i just checked out EvoScan and i dont see a request for 9a or 9b im using the latest version of evoscan as well

 

Add this to the data.xml in the evoscan folder


<DataListItem DataLog="Y" Color="" Display="MUT9A" LogReference="MUT9A" RequestID="9A" Eval="x" Unit="x" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="1000" ChartMin="0" ChartMax="1000" ScalingFactor="1" Notes=""/>

<DataListItem DataLog="Y" Color="" Display="MUT9B" LogReference="MUT9B" RequestID="9B" Eval="x" Unit="x" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="1000" ChartMin="0" ChartMax="1000" ScalingFactor="1" Notes=""/>

 

Will do spiker, do you want me to do a cold log and a warm start as well? Where is evoscan xml? i cant find it??

 

it will be in the evoscan folder incase your looking for it in the ecuflash folder