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Old 09-05-2006, 10:51 PM   #1
waxdass
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Member#: 53979
Join Date: Jan 2004
Location: Perth, Australia
Default ECUTEK, WALBRO pump and SARD 800cc's.. PROBLEM

Hi

I have just got my car tuned, runing a walbro 500hp type in-tank fuel pump, ecutek reflash, sard 800cc injectors, FP green which has been ported, ceramic coated, angle mounted etc
a heap of supporting mods, running 25 psi...

My tuner could not tune the injectors at idle, or hardly any load... The target parameters set in ecutek were stoich, although it was running excessivly lean with even 25% correction. He also did scale the injectors, but this wouldnt help things at all...
Once there was load, it seemed it started correcting itself properly (although out to some extent).
after 500rpm the walbro was running out afr's started to go lean

So im asking - to those ppl who run ecutek and big injectors, how is your idle? And how did u manage to controll it properly? Mt tuner is suggesting that the Walbro pump i have is not supplying enough fuel pressure to atomise the fuel with the big injectors...

opinions?

thanks
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Old 09-06-2006, 12:43 PM   #2
WhiteKnight
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Ask him if he set the correct parameters for Injector Battery compensation map or something similar
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Old 09-09-2006, 09:19 AM   #3
jaxscuby
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maf calibration table...
scale injectors down to ~750cc
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Old 09-09-2006, 09:32 AM   #4
cdvma
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Did he set the dead times?
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Old 09-09-2006, 11:13 PM   #5
ride5000
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Quote:
Originally Posted by cdvma View Post
Did he set the dead times?
+1234
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Old 09-10-2006, 02:45 AM   #6
waxdass
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you cant set deadtimes on ecutek... as far a iv been told

BTW - how can i run more than 1.8 bar on ecutek without hitting boost cut! ??
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Old 09-10-2006, 08:15 AM   #7
ride5000
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if ecutek can't adjust dead time, that's seriously weak, and you should spend 100 bucks, get a tactrix cable and reflash it yourself.
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Old 09-10-2006, 09:39 AM   #8
waxdass
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I have that cable. I'm not confident in touching the ecu - especially without a wideband afr meter
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Old 09-10-2006, 10:57 PM   #9
mick_the_ginge
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Quote:
Originally Posted by ride5000 View Post
if ecutek can't adjust dead time, that's seriously weak, and you should spend 100 bucks, get a tactrix cable and reflash it yourself.
With EcuTek you can adjust the Injector Latency.

This sounds like what the problem is in your case. You will need a complete re-tune when the injector latency is changed.
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Old 06-09-2013, 11:08 AM   #10
Amaan_ej20
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does anybody have the injector latencies for the sard 800cc injectors for a 2l wrx sti? i have the same problem, running lean with more than 25% correction. im running a fuel base pressure of 45psi
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