Jump to content
SAU Community

Hot Start

Room42

By Room42,
in Engines & Forced Induction

 Share

Recommended Posts

Room42 Proficient

Room42

Posted
Posted

Title says it all, almost. My car starts first time immediately when it's cold. When it's hot it cranks for a lot longer. Too long. I have tried adding and removing fuel from the cranking setup. A tuner I spoke to told me to watch what cell it is using when I turn the key and add heaps of fuel there. There is as much fuel as I can add in the first 4 cells of the fuel map and no better. I haven't changed the voltage on the fuel pump yet. Ideas?

Link to comment
https://www.sau.com.au/forums/topic/375214-hot-start/
Share on other sites
Room42 Proficient

Room42

Posted
  • Author
Posted

Mine is does it consistently. Could it be because of having 9xxcc injectors? The latency time is not far from stock. 0.58ms Although it does start fine every time when its cold. Could it be coils? Most of the time it starts with a miss for about 2 seconds. There are new properly gapped plugs in it.

Link to comment
https://www.sau.com.au/forums/topic/375214-hot-start/#findComment-5984753
Share on other sites
Room42 Proficient

Room42

Posted
  • Author
Posted

Cos I have to let the O2 sensor warm up I tried something different. I let it warm up on accessories and then when its ready I turn the key to on. then start the car halfway through the prime and it starts first time. It must have been losing pressure in the rail cos it primed then didn't get started till the sensor was warm 15 seconds later.

Link to comment
https://www.sau.com.au/forums/topic/375214-hot-start/#findComment-5984993
Share on other sites
Room42 Proficient

Room42

Posted
  • Author
Posted

Are u talking about the wideband? U dont have to let

It warm up. Start the car then plug it in.

It says in the instructions to turn on the power to the wideband and when the light stops flashing to start it. This is to let the heater in the sensor warm up and stop the sensor getting clogged with soot. They say it prolongs sensor life. Everything about the wideband gauge is soldered in. There is no plugging in. Have a look in the wideband thread. I put a clip in there explaining about how it works.

Link to comment
https://www.sau.com.au/forums/topic/375214-hot-start/#findComment-5985013
Share on other sites

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

    • GTSBoy
      R34 25GT Engine Light 21

      By GTSBoy · Posted

      If it (the code) wasn't still current, it should have gone away by itself by now. No, nothing it 10/10. But it is quite likely. Everything else to do with the ignition could still be responsible (which is wires and connectors). The car is an old piece of shit now, so all the wires and connectors are also old pieces of shit.
    • The Bogan
      SAU NSW - R U OK? Southern Highlands Cruise

      By The Bogan · Posted

      Lock me in mate, although I'm not sure if I'll be heading up from Goulburn or down from Sydney, either way, return will be back to Goulburn 
    • Duncan
      SAU NSW - R U OK? Southern Highlands Cruise

      By Duncan · Posted

      Sounds good, we will aim to be there! @The Bogan I'll give you a shout if you are heading up to campbelltown for the meet too.
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      Before I get to the test day, just to finish off the android head unit. This is a demo from car start up....the standard/host system takes a few seconds to boot (same as all v37) but Android comes up quickly. In this vid I'm using the delivered launcher but have set the default to Agami since which is easier to navigate when if use primarily 5 apps. You can see the host system still takes over when required eg putting it in reverse, and you can switch between Android and not by holding the back button 3 sec. It is pretty responsive (fast) but you can see I had to press harder than expected a couple of times.  I still have the phone connected to the stock system, and that also seamlessly takes over Android music playing. v37-android-demo.mp4 The bigger reason that I put this in though is so that I can use Ecutek directly on the head unit. That gives me a dash with logging (up to 20MB only), high and low value warnings on any parameter etc etc. I've run a USB cable from the Ecutek OBD dongle to a USB input on the unit, easy. v37-ecutek-demo.mp4   The unit did freeze on the launcher the other day, I think Agami was trying to verify the license when it didn't have a data connection...will monitor and report back if there are any other problems but so far I'm very happy with the upgrade.
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      Nah that is just crappy GPS mapping, I did have a small excursion (cold tyres, damp track, surprise!), will post up that when I get a chance.
×
×
  • Create New...