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Thread: LS3 engine Injector Bank assignments..... letters versus numbers

  1. #11
    Joe (Moderator) joecar's Avatar
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    Implication is that injector # is different than cylinder #.

  2. #12
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    Quote Originally Posted by joecar View Post
    Implication is that injector # is different than cylinder #.
    I know this is an old thread but I have to be certain of this and the injector number being different is throwing me off. Which letter in b1520, the individual injector correction table, would I alter to affect cylinder 4 for example, E? I asked the same question of Paul of Efilive and he said that the leters follow the firing order, so cylinder 4 would be G. I have to get this right and am thoroughly confused.

  3. #13
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    Quote Originally Posted by wwaveforms View Post
    I know this is an old thread but I have to be certain of this and the injector number being different is throwing me off. Which letter in b1520, the individual injector correction table, would I alter to affect cylinder 4 for example, E? I asked the same question of Paul of Efilive and he said that the leters follow the firing order, so cylinder 4 would be G. I have to get this right and am thoroughly confused.
    1A, 2D, 3H, 4G, 5F, 6E, 7C, 8B or in firing order..... A1, B8, C7, D2, E6, F5, G4, H3. Although, I changed table B1520 drastically (small increments at 1st) and couldn't see a difference between my dual AFR sensor readings. I changed Bank 2 (cylinders B D E G in tune) from 1.0 to 2.0 with no obvious change in datalogs.

  4. #14
    Senior Member auspeed's Avatar
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    Where you able to balance the banks out by modding Table {B1520} ?

  5. #15
    Senior Member auspeed's Avatar
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    ???????

  6. #16
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    Quote Originally Posted by auspeed View Post
    ???????
    No, altering that table didn't make any difference. I zeroed out half of cylinders with no effect. It must no be active with my OS. I picked up some ID1000s I'll be trying next spring.

  7. #17
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    Quote Originally Posted by auspeed View Post
    Where you able to balance the banks out by modding Table {B1520} ?
    I didn't see any changes by modding the table. Wondered if I was missing something.....

  8. #18
    Senior Member auspeed's Avatar
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    I didn't see any changes by modding the table. Wondered if I was missing something.....
    That's a shame, its would be useful for LSA's that run slightly leaner on the rear 2 cyls.

  9. #19
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    for B1520 to be enabled there is a separate enable/disable bit that enables it. Not currently mapped.
    "All that is needed for the triumph of evil is that good men do nothing..."

  10. #20
    Lifetime Member Tre-Cool's Avatar
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    I was reading on the hpt forum that some people who had tried it on the e38's were getting like a cut out around 4k rpm when they used it.

    something to do with the cpu maxing out, e67 apparently doesn't have that problem.

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