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jigga009

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    jigga009 reacted to Adamw in Issue with oscillating/bouncing idle when at operating temps   
    I personally would leave the idle ignition disabled for now until you get the idle valve working reasonably well - otherwise it can mask problems with the idle valve tuning.  That is why I didnt ask you to change the RPM lockout originally.
    The stalling is caused when fan #1 turns on, this is because your Fan#2 settings are wrong so that the ECU has already applied the "fan step" at 80°C, long before Fan 1 turns on.  (I also note you have no fan set to turn on with AC but we will leave that for now).
    Try changing all red values again as per the screenshot below.  Leave idle ign off for now and do another log.  

  2. Thanks
    jigga009 reacted to Adamw in Issue with oscillating/bouncing idle when at operating temps   
    Ok, idle valve operation is looking reasonable now.  A little more AC step is needed.  We will also bump proportional, and add anti stall.  Proportional can possibly go higher than I show below to speed up response but try these settings first.  You can also try the idle ignition settings below.

  3. Like
    jigga009 reacted to ClintBHP in Issue with oscillating/bouncing idle when at operating temps   
    You are quite rich there, have you tried tuning the table a little, I am assuming your on petrol/gasoline as your have 14.7 as Stoich, your dropping close to the 11's I would be surprised if your plugs are not black and misfiring.
    I also see that the main change in the map is injector deadtime, this looks very wrong as the idea is that as the battery voltage drops the speed of the injector changes and requires more opening time to keep the same AFR, however as soon as your deadtime changes you get dumped into 0.7 Lambda.
    I would change the deadtime so 12, 13, 14 & 15 volts are the same at say 0.7ms (doesnt matter for now if this is correct) then I would tune the map so you are targeting nearer 0.95 Lambda, then as the voltage drops trim the deadtime map so Lambda stays the same as when you tuned it.
     

  4. Thanks
    jigga009 reacted to ClintBHP in Issue with oscillating/bouncing idle when at operating temps   
    Short answer:
    All injectors take an amount of time to open (and close) that needs to be known, this is commonly somewhere between 0.7 and 1ms at 14v. 
     
    So so from a fast injector to a slow injector that’s 0.4ms difference.
    At idle when you may only have a 2ms plulse for ideal idle that 0.4v is 20% but higher up the Rev range it’s far less so will affect ARF much less.
    you should be able to maintain the same AFR no matter what the battery voltage, and that’s the reason your idle is bad your AFR is dropping into plug fouling territory.
     
     
  5. Thanks
    jigga009 reacted to Adamw in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    Set it to RPM/Speed mode.  Set detection type to user defined (since you already have the ratio numbers in your old map).  Copy ratio numbers into the ratio table.
    Check there is a driven wheel speed source assigned under >chassis and body>speed sources. 
    That should be all it needs.  If it still doesnt work then attach a copy of the map.
  6. Thanks
    jigga009 reacted to ClintBHP in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    Glad you have sussed that CAN issue, these things can be tricky and testing at times, have a great weekend
  7. Like
    jigga009 reacted to Adamw in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    There are instructions in the help file how to set up the CAN for the AIM dash.
    Note the pressure X 10 bug is in the AIM firmware, I notified them of this error about a year ago.  From memory Lambda is also out by a factor of 10.
    See the last couple of posts in this thread:
     
  8. Like
    jigga009 reacted to ClintBHP in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    Sorry conversion error, try now.
  9. Like
    jigga009 reacted to ClintBHP in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    I would use it as a chance to start using Lambda, even if you have to print a little chart out to reference for a while, with modern fuels containing more and more ethanol its wise to think in Lambda terms, even though AFR might seen easier due to the swing of the values.
  10. Like
    jigga009 reacted to ClintBHP in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    As you self answered 3 & 4 :
     
    1 - Set your engine protection rpm limit to Ignition Cut.
    2 - Have you checked the CAN configuration  - ECU Controls - CAN Config
  11. Like
    jigga009 reacted to ClintBHP in Upgrading from Vipec V88 to Link G4+ Xtreme... upgrade procedure?   
    I think the V88 is effectively a Link G4 Xtreme then you can do the following:
    1. Download the latest version of PCLink and connect your new ECU, upload your old map file. (this does not work offline) 
    Upgrade the firmware
    Check all the inputs and outputs are set correct.
    2. Always worth doing but should be fine.
    3. You wont be able to run the car with a locked ECU.
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