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Type: Posts; User: lionelhutz

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  1. Replies
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    1,802

    Saying 25 parameters is a little misleading...

    Saying 25 parameters is a little misleading because for every table listed it would have scaled every data point in that table. 100's of actual data points get changed.

    Did you check that you had...
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    3,030

    All the "psi" values are really just the lookup...

    All the "psi" values are really just the lookup column in the EPC or force motor tables, the current tables for the pressure control solenoid. It's a table of temperature vs pressure giving...
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    2,060

    There is some adaptive line pressure stuff that...

    There is some adaptive line pressure stuff that adjusts how hard it will shift but there is no learning for shift rpm vs throttle position. But, that should have not changed by rebuilding the...
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    19,413

    PCM output is 4000ppm assuming the PCM is...

    PCM output is 4000ppm assuming the PCM is calibrated. It's a transistor driver to ground, so it needs a pull-up resistor to work.
  5. H0105 should be the output for the speedometer....

    H0105 should be the output for the speedometer. 4000 pulses per mile. If you mean to calibrate then I think H0101 to H0104 are used. The outputs are for PCM outputs to other components (TCS, cruise,...
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    Engine is probably reasonably close in tuning...

    Engine is probably reasonably close in tuning unless you've done something like a cam.

    I would download Bluecats which will produce new transmission curves and try something more aggressive there....
  7. The pin gets connected to the TX and RX pins of...

    The pin gets connected to the TX and RX pins of the converter. I built one that works OK and I put a 1k resistor connected to the TX pin and a 1N914 diode with the band end connected to the RX pin....
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    1,737

    As pointed out, you need the Optispark. The...

    As pointed out, you need the Optispark. The signals are unique to it, so not the same as any other crank or cam trigger signal.

    You could probably put a LT1 cam and front timing cover onto the...
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    4,908

    All the 4L60e have a 3-2 solenoid. You posted...

    All the 4L60e have a 3-2 solenoid. You posted on-off so I believe you mean pwm vs on-off. I have read maybe it changed from PWM to on-off and then I have also read that it just changed in design and...
  10. I'd agree, start with BPW until the BLM are...

    I'd agree, start with BPW until the BLM are closer to 128 then start fine tuning.

    You may need to mess with the accel enrich vs TPS too once you start getting the BLM dialed in. This gives it a...
  11. The first is the physical setting at the...

    The first is the physical setting at the distributor without the ECM controlling the timing and the second is the advance the ECM thinks has been set at the distributor. They are normally set the...
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    2,555

    All the GM ones work pretty similar. I think they...

    All the GM ones work pretty similar. I think they are all the same resistance. The closed and open throttle output voltages would vary a bit depending on the throttle body they are attached to.

    I...
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    That's a good point Steve, change the injector...

    That's a good point Steve, change the injector constant only first maybe and try logging again until the error isn't as high. Then start adjusting the VE table.
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    7,986

    I'd keep the fixed part for now. The rest that...

    I'd keep the fixed part for now. The rest that never got touched I would pull up. Pick those cells only and multiply them all by 1.13 first so they all come up close to the corrected part. If that...
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    Isn't there also a starter relay that would also...

    Isn't there also a starter relay that would also need bypassing?

    I believe the module in that car used a fixed resistor. Maybe just buy a kit with the resistors and try them until it starts. It...
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    12,597

    There has to be something wrong with those times,...

    There has to be something wrong with those times, because the shift doesn't actually take 6.38 seconds and the transmission couldn't survive 6.38 second shifts at 100% throttle.

    AFAIK, those times...
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    12,597

    The 4L60e always seems to have a delay between...

    The 4L60e always seems to have a delay between the PCM deciding to shift and the shift finally occurring, even after tuned. I find I put the 1-2 shift 200-300 rpm lower than the 2-3 shift for them to...
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    12,597

    I didn't install a brake switch. I have full time...

    I didn't install a brake switch. I have full time power to the circuit. I jumped it because I wanted to drive the car and since it has always worked fine so I have never changed it.

    I can't see it...
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    I've read before that the V4P bin transmission...

    I've read before that the V4P bin transmission control can't be copied by copying the known transmission tables from that bin to another bin because there are differences that are not part of those...
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    That started with the V4B bin then. OK, did you...

    That started with the V4B bin then. OK, did you data log and check that the PCM speed is matching the real speed, using GPS or your phone?


    Shift curves show that at 45mph it should go into 4th...
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    12,597

    Can you give some background, where the tune came...

    Can you give some background, where the tune came from and what you changed before test driving? Is it possible your speed is off or you adjusted for the tire and rear-end but didn't scale the shift...
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    In the link...

    In the link "1994-Caddy-V4P-towing-package-LT1.bin"
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    The V4P bin from here is a good starting point. ...

    The V4P bin from here is a good starting point.

    http://gearhead-efi.com/Fuel-Injection/showthread.php?335-16188051-and-16181333-PCM-Information-EE-EEB&p=2437&viewfull=1#post2437
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    Well, I took a quick look and he set the maximum...

    Well, I took a quick look and he set the maximum line pressure scalar to 125psi and he also went over 96psi in the main pressure table. Both of these strongly point to him being clueless about how...
  25. Careful trying to adjust line pressure, it likely...

    Careful trying to adjust line pressure, it likely doesn't work like you think it does. The PCM has no clue what the line pressure really is.

    The maximum line pressure scalar is not line pressure,...
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