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BLM/INT usec equivalents??

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Old Jan 18, 2008 | 08:57 AM
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BLM/INT usec equivalents??

I was wondering how much 1 unit of Integrator change and 1 unit of Block Learn Mult change is, in fuel. It's probably got a lot to do with BPC and injector size.??
Just wondering how the computer reflects the change in BLM/INT at the injectors.

Last edited by 91chevz71; Jan 18, 2008 at 12:00 PM.
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Old Jan 18, 2008 | 09:56 AM
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Re: BLM/INT usec equivalents??

something tells me it may be fuel pressure related as well. some where in cyberspace is a formula....
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Old Jan 18, 2008 | 12:05 PM
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From: Chasing Electrons
Car: check
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Transmission: check
Re: BLM/INT usec equivalents??

How the INT & BLM modify the PW varies with the ECM mask. Some just add/subtract the value, others will use it along with the current PW as a modifier.

On the EBL the BLM value will add/subtract 15.26 usec from the PW per unit. So 130 will be 2 units (130 - 128) for 30.5 usec added to the PW. This is done early on with the PW being further modified by DE, DFCO, and battery voltage compensation. Which are multipliers to the PW, which at this time the BLM is part of.

On the EBL the INT is easier. It a straight add/subtract of 15.26 usec per unit. No further modifications.

The proportional gain is the same as the INT. It will be added/subtracted to the PW late with no further modifications to it.

RBob.
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Old Jan 18, 2008 | 12:13 PM
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Re: BLM/INT usec equivalents??

excellent, thanks Rbob
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Old Jan 18, 2008 | 12:43 PM
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Re: BLM/INT usec equivalents??

would this allow you to calc the exact amount of fuel delivered?

http://www.users.bigpond.net.au/ben_...ctorsizing.xls
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