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bel

constant 12v to fuel pump now running issues and map limits

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Hi there im bel from far west Qld i had some issues with my fuel pump so the auto sparkies in town wired it to take constant 12v.
I'm not sure what they did but when they gave it back to me every 5v code was active and was in limp more i changed the plugs then it started but fouled them pretty quickly.
i have managed to get it to run and drive but very poorly until it reaches temp and then it starts limiting on map limit reached. its exstreamly rich stalls on idle and misses if you try drive down the road.

R32 with a rb25det Neo
G4
link 7 bar map sensor air temp and mac valve
1000cc injectors tomei reg L type set for 3ish kgs
Walbro 460 fuel pump with constant 12v
dunno why but no 02s/wide bans

attached is a log hope i did it correctly fresh spark plugs from dead cold back out of my driveway and drove up the road stopped at a few traffic lights then sped up in 4th gear until the limit was reached then turned around and came home.
 

skyline tune.pcl Log 4-06-20 10;30;22 am.llg

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The 5V code probably suggests they shorted something when they were messing around but it doesnt appear to have harmed anything from what we can see in the log.  Everything seems to be reading correctly and I dont see any obvious issues.  The boost cut looks like it is just overshooting a bit, it probably just needs a bit of duty cycle taken out of the wastegate table to sort that - maybe temperature/environmental related.

Is it possible it now has higher fuel pressure than it did before the fix?  

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Thank for having a look! i am not a tuner by any means and I'm extremely limited with help in this regard by a distance of 1000kms. I would say definitely yes for the increased fuel pressure going from factory wiring/relay to full battery voltage. But I had set it back to 40psi in the rail 

The enviroment has changed was tuned on the gold coast probs 30c give or take then I drove it 2000kms into the desert and the car operated in temps from 45c when I first got here to about 15c at the moment. In saying that was no issues untill the fuel pump wiring died and was changed.
for eg where its

I'm not 100% on how to trim the watse gate duty cycle iv located the table. and i can see in the log where i go 100% throttle and its drops ign as the map pressure reaches 230kpa im guessing that value needs to be increased  to bring the map pressure down?

 

 

 

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21 hours ago, bel said:

I'm not 100% on how to trim the watse gate duty cycle iv located the table. and i can see in the log where i go 100% throttle and its drops ign as the map pressure reaches 230kpa im guessing that value needs to be increased  to bring the map pressure down?

Click in the top left corner where I have marked pink in the pic below, this will select the whole table so you will have a blue box around the whole lot.  Then hit enter so the "enter new value" box pops up.  Delete the equals (=) sign and type in "-3" like my pic below shows and hit enter, this will subtract 3 off every cell, that will probably do it.  

FSmjCNe.png

 

For the fueling issue you are really going to need a tuner involved, it will need a wideband etc connected.

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Thank you for the advice and guidance I will carry out your instructions and test it tomorrow and look into a road trip and tuner. 

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