Jump to content
SAU Community

Power FC Cranking Enrichment

B-Man

By B-Man,
in Engines & Forced Induction

 Share

Recommended Posts

B-Man Grand Master

B-Man

Posted
Posted

I understand this setting ajusts fuel enrichment on starting ?

What settings do you use ? Especially interested in knowing from those of you with bigger injectors.

Reason I am asking is, I find that my car is hard to start when it is hot or has been running for a while.

Cold start is fine - it kicks over first pop - no worries - even from dead cold.

But when hot - it takes maybe 3-4 good cranks before it will start. Sometimes I have to leave it for a while.

I guess it might be coil packs or fuel pump - but I doubt it - cause the only thing I have changed recently is the the PFC (replaced from Microtech where it was starting fine)

Any other suggestions ?

Cheers,

Link to comment
https://www.sau.com.au/forums/topic/48915-power-fc-cranking-enrichment/
Share on other sites
Merli Grand Master

Merli

Posted
Posted

Brendan,

My car does the EXACT same thing... Perfect from dead cold, perfect if I start it up again within a few minutes when hot, but if I leave it for a while when hot, it takes 3-4 long cranks to fire up.

I thought it was my Bosch 044 fuel pump, but I dunno anymore... I really need to give Paul (Stace's pit bitch) a call, he said he went through the same troubles with Stace's car, but I haven't gotten around to calling him yet :looney:

Possible factors:

Power FC Pro

GReddy 800cc injectors

Mines AFMs?

Bosch 044 Fuel Pump

Makes it hard because I had so many things changed at once, troubleshooting is going to be a biatch :D

Merli Grand Master

Merli

Posted
Posted

I had a look at the Cranking table... Interesting that you can't adjust spark timing, but only injector width?

And what do you reckon the temperature is? Water temp?

Guest two.06l

Guest two.06l

Posted
Posted
FIXED IT ! Woo Hoo

 

Changed Cranking enrichment from 3.0 ms to 6.0 ms @ 80 degrees

 

:)

 

I'm gonna become me a car tuner :rofl:

hi guys

we run 4.0ms at 80deg and 7.0ms at 50deg, if thats any help. 720cc injectors are used, but staceys cranking prob was pump feed voltage drop. Merli if any probs call me if you want to discuss further.Paul.....DIRTgarage

B-Man Grand Master

B-Man

Posted
  • Author
Posted
I had a look at the Cranking table... Interesting that you can't adjust spark timing, but only injector width?

Do you mean ignition timimg ?? Cause you can on the timing map - 1st set point is 400 RPM.

Unless you mean something else ??

:)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Hi from Canada, Both of my calipers are starting to fail. My car is a 2005 M35 Stagea ARX and I can't seem to find any parts or any cross reference caliper that would fit my car. Is there a company or a similar caliper that would fit and I could replace the OEM one. Or if anyone knows where I can find a new OEM. Any help is very appreciated. Let me know!
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Maf is a question mark but TPS  I have set at 0.47, the fact that I’m getting proper voltage range out of it with the key on leads me to believe it’s functioning properly. I’m getting proper voltages on basically everything. I still need to look up voltage ranges for z32 maf and test that 
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Honestly no not at all, but it’s a very basic tune, it’s stock injectors q45 tps and z32 maf. Other than that it’s a completely stock base map. The file is from nistune and from my understanding if it was tune related I would be able to unplug maf and tps and it would still start even if it was a really shitty start. I have tried starting it with coolant temp, maf, and tps unplugged none of those 3 togethor or individually changes anything 
    • Matt Z
      SAU NSW - Bathurst Run 2025

      By Matt Z · Posted

      🏆 Skyline Supremacy Meets Mount Panorama Magic 🏆 Join SAU NSW as we take the long way to Bathurst, the home of GTR greatness. Saturday 30th August 2025 7:00AM Meeting Hanna Park North Richmond 7:30AM Departure Cruise Via Bells of Line Road 9:00AM Arrival to Stop 1: Golden Poplars Meadow Flat 9:45AM Arrival to Final Destination: Mount Panorama Motor Racing Circuit Meet Location: Hanna Park North Richmond Stop 1: Golden Poplars Meadow Flat Final Destination: Mount Panorama Motor Racing Circuit   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • soviet_merlin
      My BMW E39 528i touring

      By soviet_merlin · Posted

      What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day   Highway gets as low as 10l/100km on my end so I'm not as worried about it being a mechanical issue. More likely just the tune on the haltech.
×
×
  • Create New...