Stock fuel injection / 034 EFI

[Zsolt Kovacs]

I am still wondering about very cold temperatures. -13C is not that cold
at all. Audi is my winter car here, and in extreme cases it can get down
to -40 (which is the same in C and F). If  it does not start in the
winter, it kind of defeats the purpose. Does anyone run their system in
a cold climate?

Thanks,
  Zsolt

Marc Swanson wrote:

>>>Well, you can adjust the open loop fuel enrichment gain across the board
>>>based on coolant temp.  The limitation you might be thinking of is the
>>>fact that 034 does not go closed loop until X seconds (configurable)
>>>regardless of if the engine is warm or cold.
>>>
>>I'm thinking more of the fact that it takes a lot of extra fuel to make
>>an infernal combustion engine run properly when it is cold, as in very
>>cold, as Zsolt said, -40 cold... or at least, say 0 degrees F.  if the
>>open loop enrichment you speak of has that range covered, I stand
>>corrected.
>>
>
>Shouldn't be a problem.  I opened up the software to see the specific range
>of adjustments..
>
>you can set the gain at the following temperature threasholds (all in deg.
>C.):
>
>-13, 3, 19, 35, 51, 67, 83, 99, 115
>
>>I still think the lack of feedback control on the idle speed is an
>>oversight that should be corrected.
>>
>
>agreed.  There are aftermarket EFI systems out there with provisions for idle
>control built in,  eg:
>
>SDS efi:  http://www.sdsefi.com/specific.html (scroll toward the bottom to
>see a pic of the ISV or search for "fast idle")
>
>Haltec:  http://www.haltech.com.au/Products/products.html
>
>
>-Marc-
>87 4ktq
>88 90q
>