[Gmecm] 1F - 85 L98

[Mike Poore]

What you say makes sense. I realize that I will need to change the 
entire table, but I am curious what LV8 values would equate to idle 
speed. I assume a LV8 of 0 would mean the engine is not running, but how 
high could LV8 go at idle speed? What would a typical LV8 value be for 
cruising at say 50 mph? Does anyone know the equation used to calculate LV8?

Mike

Mark Romans wrote:

> I just checked the 1F (85 TPI) tunercat and I don't see an injector 
> constant.  However there is a table called
> "Injector Pulse Width vs Load Value"  and it lists "LV8 and USEC"  I 
> suspect that this is used to adjust the pw
> to match up with load value.  What ever lbs/hr your current injectors 
> are, let's just say 30lbs/hr  vs stock at my guess
> 23lbs/hr I would take .86 times (24/30) all the numbers from that 
> table and see if that brings your fuel trims back in line.
> I would try to tune to get the BL in the 121 (5% rich) range.
> Mark
>
> 0
> 534
> 1068
> 1602
> 2213
> 2670
> 3281
> 3815
> 4349
> 4883
> 5493
> 5951
> 6561
> 7095
> 7553
> 8163
> 8698
> ----- Original Message ----- From: "Mike Poore" <mp at FlowersByValerie.com>
> To: <Gmecm at diy-efi.org>
> Sent: Saturday, March 04, 2006 1:31 PM
> Subject: [Gmecm] 1F - 85 L98
>
>
>> I am using TunerCat. The engine idles VERY rich due to larger 
>> injectors and I can't lower fuel pressure any more. What is the best 
>> approach to reduce pulse width at idle? The problem is in both closed 
>> and open loop.
>>
>> I see a table for Injector Pulse Width Vs. LV8, which seems like a 
>> possibility, but I don't know what the LV8 at idle would be.
>>
>> I see IAC tables and MAF tables, but nothing that seems to directly 
>> control the idle fuel.
>>
>> I'm a novice at this so the more specific the better.
>>
>> Mike
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>
>