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Thread: B3702-B3703 question ....

  1. #1
    Member overS10ded's Avatar
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    Default B3702-B3703 question ....

    I've installed new injectors and when reviewing this table, the B3703 says "These values should not exceed those in
    - {B3702} Injection Timing.' But mine do. My B3702 table runs from 2.67 - 4.42 and the B3703 runs from 3.25 - 5.00! That seems to be exceeding the first table...could they be reversed? I tried using same (smaller) values in both tables but it went rich. Working with deka 44's, from bosch 36.

    Good times!
    Bruce
    Brucemobile: '91 S10 Blazer 4dr, 4x4 - '96 4.3 Vortec V6-stock, '0411 PCM conversion, marine manifold conversion, 44# Deka injectors, intercooled Procharger P1SC w/3.2 pulley, Headman long tube headers - 3" single exhaust, custom 700r4, 2500 stall w/lockup, 2002 S10 Blazer suspension and 4 wheel disc brakes, coil over front suspension conversion-torsion bar delete, zexel torsen posi 3.42 w/ 245/45r17's. EFILive tuning.

  2. #2
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    I've asked a few people about {B3703} and nobody seems to know how that table works... or if they do know, they ain't saying.

    I've been meaning to do some testing on that table but it's still on my 'to do' list.

    My values in B3703 also exceed those in B3702 for the cooler temperatures... it's how the factory sets it.

  3. #3
    Joe (Moderator) joecar's Avatar
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    B3703 times additional pulses... I have never seen additional pulses occur, so I don't know that it matters or not.

  4. #4
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    Well I'm using the same tables for the new injectors as was there for the old (never touched it when I installed the 36#) and am trying to iron the dekas out. Didn't know if this could be part of the problem. I thought the issues are seeming to be that injector timing is off as the AFRs search a lot at cruise and deceleration is VERY rich as well. The data I recieved from the vendor shows a minimum pulse width of .805 while info I found from siemens shows 1.2 for minimum pulse width for these injectors. Thanks for the replies!

    Good times!
    Bruce
    Bruce
    Brucemobile: '91 S10 Blazer 4dr, 4x4 - '96 4.3 Vortec V6-stock, '0411 PCM conversion, marine manifold conversion, 44# Deka injectors, intercooled Procharger P1SC w/3.2 pulley, Headman long tube headers - 3" single exhaust, custom 700r4, 2500 stall w/lockup, 2002 S10 Blazer suspension and 4 wheel disc brakes, coil over front suspension conversion-torsion bar delete, zexel torsen posi 3.42 w/ 245/45r17's. EFILive tuning.

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