Car won't run

[91SkylineGTR]

Okay i swapped in:
Tomei M7655 turbos
deutschwerks 800cc injectors
Z32 MAFs
Tomei fuel pressure regulator
godspeed fuel rail
Apexi power FC L-Jetro



First try in the morning it starts up, runs rough, and dies after ten seconds. Then it won't start up at all. I assume I am flooding the engine with fuel(800cc's)

Is there something i have overlooked in the power FC to fix this?

Ive set it to Z32 MAFs and i've put in the injector difference percent(55.5%)
I Couldn't figure out what to change the latency too but I assume it would run regardless?

I have removed the plugs and they are soaked with fuel, and the fact that it starts i assume i have spark.
Do i need to change the MAF % value?

I apologize if some questions are trivial but this is my first go at a PFC and I'm just trying to get it running good enough to get it to a tuner.

What are peoples thoughts?

[speedfreak]

Sorry I can't remember the math for injector compensation so I'll assume you have done it correct.
I've found these cars hard starting when cold if coils are weak, also if the plugs are flooded you might want to swap them out.
Also if it ran before on the stock mafs maybe you should put them back in and don't swap them back till you get it running right as too many variables make it impossible to determine what is the cause.
Check all piping cause leaks after the maf will cause flooding.
Essentially start from the basics.
If the pfc is a used one which still has some else's tune in it do a reset on the ecu with the commander and remember that you must cycle the key off then on to complete the reset.
Try these things and if you have some backround on things that have been done since it last ran might help.
GL

[91SkylineGTR]

I have reset the tune, and cleaned the plugs. It friggen sucks if i have to go back to the old MAFs. That means resplicing the old connectors back in. If its needed then i will do it but if i remember correctly the car could run with the MAFs unplugged before. Does anyone know if there's something i missed in the PFC?

[h4X6]

Double check injectors. Check latency. I had that issue with my deatschwerks had to play with the latency to get it to run right.

Sent from my Nexus 4 using Tapatalk HD

[91SkylineGTR]

I have a graph for the latency vs voltage. What voltage do they operate at?

[speedfreak]

If you can't figure out which latency number to use start with a lower injector percent like 40%.
At least you won't flood it so easily.
Then once you get it to stay running use a wide band to adjust the percentage up.

[91SkylineGTR]

Ive screwed around plenty with numbers, different injector sizes, latency, fuel pressure. It seems like theres a different issue because after all the changes it does exactly the same thing. If i tell the PFC i have Z32 MAFs is that like all the tuning needed in regard to the MAFs?

[speedfreak]

Through the comander that is all you can do.
With Datalogit you have more options.

If it is still able to start try an reduce the coolant temp correction tables.
Also if you keep the throttle open will it try and keep running?

[MattiasJacobs]

Tow it to a tuner?

[91SkylineGTR]

Ive considered towing it but i dont want to get there and they are like okay u need this n this come back when u have it. It won't start at all now :$

[91SkylineGTR]

I'll be testing it for spark tomorow. I have a feeling something I havent touched has just slowly worn out and is giving me trouble now.

[clone]

4 Free tows by CAA.

[91SkylineGTR]

Spark was good, all i found was one bad plug. Not enough to stop the motor from running but i bought new plugs anyways.

[MattiasJacobs]

Which plugs and what kind of gap are you running

[91SkylineGTR]

Ngk bpre7s i think they are, ive tried .8mm and 1.1mm