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< Fuel in $88: Inj. k v/s VE??

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Old Jul 5, 2004 | 11:10 AM
  #1  
Denis.V's Avatar
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< Fuel in $88: Inj. k v/s VE??

For larger injectors I try to reduce fuel in the $88 calibration via changes in the "Injector Flow Rate" (TunerCat) and nothing. BLM remains the same. What do I need move?

- At first: Are "Injector Constant" & "Injector Flow Rate" the same?-

- If I try with the complete VE table, it's the same?

- When I move the Inj. flow rate with TunerC, I check the EPROM and I see the cells 6BD and 007 moving (Inj. flow rate and checksum).

Thanks for a little help,

Denis V.
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Old Jul 5, 2004 | 08:03 PM
  #2  
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Re: < Fuel in $88: Inj. k v/s VE??

Originally posted by Denis.V
For larger injectors I try to reduce fuel in the $88 calibration via changes in the "Injector Flow Rate" (TunerCat) and nothing. BLM remains the same. What do I need move?

- At first: Are "Injector Constant" & "Injector Flow Rate" the same?-

- If I try with the complete VE table, it's the same?

- When I move the Inj. flow rate with TunerC, I check the EPROM and I see the cells 6BD and 007 moving (Inj. flow rate and checksum).
Might be an error in the way the code's being interupted. I haven't worked with the 88 so I can't state as fact what's going on. But, you might write TC and ask if he's sure about the .tdf file. Try making a drastic change and see if it'll idle, would be my next move. Just to make sure it does or doesn't do anything.

Different math, but both at the basis of the PW calculation.

Could do it that way, but it might fubar some other calulations.
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Old Jul 9, 2004 | 03:48 PM
  #3  
Denis.V's Avatar
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Joined: May 2002
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From: Santiago, CHILE
Car: 1986 Pontiac Firebird Trans Am
Engine: 305 Tuned Port Injection
Transmission: The famous 700R4
Axle/Gears: No idea
O.K., thanks,

I did a search about this topic. "Injector k" doesn't exist at $88 calibration. For changes in injector size you must move "Idle fueling BPC" (2 byte value @ 6BA/6BB) + "BPC for N-alpha fueling" (2 byte value @ 71F/720) + "Inj k vs EGR airflow" (table from 754 to 764). All the same %, but in the oposite way than "injector k" (down is less fuel delivery, up is more fuel).

Others says: 0% EGR airflow in the last table mentioned is "inj. BPC @ idle" but I'm testing about this.
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