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Thread: Starts then stalls ......

  1. #1
    Fuel Injected!
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    Starts then stalls ......

    Thought I had gone over this thing bit by bit (no pun intended) , but I am obviously missing something as this is my first time combining .bin's , anyways :

    454 (496) / 700R4 in my S10 Blazer , runs fine when up to temperature , 750 +/- rpm idle , good transition into and out of gear , all around good running .

    Problem is when it sits overnight (+/- 35 degrees ambient temp ) it will start and immediately stall , two or three times or if you crack the throttle very slightly and it will run and idle like normal .

    I imported the Fuel and Spark tables from BMHK (Manual $OE) to Fast355's BJYL-700R4 .bin ($OD), I did this as I liked the idle charicteristics of the BMHK but I needed $OD to run 93V8S10's dual fan code, so it is possible I missed a startup parameter during the transfer that is causing this , but I don't seem to be able to find it . Thought it might be looking for a P/N input at pin E5 ('7427 PCM) but no luck there .

    Anyone that might look at the attached .bin and lend some pointers ?

    Thanks in advance

    TOM
    Attached Files Attached Files
    1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
    2006 Forest river-Sierra 37' 5th wheel
    1999 Astro Van, L31 Vortec , 4x4 conversion
    1994 Pontiac Sunbird "Work ride"
    1993 K-3500 "Ex-diesel" 454/4L80E - '7427
    1992 454SS "Eh Stock" , Blower & '7427 swap .
    1992 S-10 434 SBC/Tremec - '7427
    1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
    1980 Z-28 454/700R4
    1977 Olds 98 Regency 403/700R4

  2. #2
    EFI GearHead ! EagleMark's Avatar
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    I didn't look but you probably missed a startup choke/AFR/etc... 454 (496) needs way more fuel at startup cold...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  3. #3
    Fuel Injected! JeepsAndGuns's Avatar
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    I used to run BMHK. For various reasons (I won't go into) I dropped that bin for a $0D bin (BJYM I think) One thing I noticed, was it was definately slower to crank than bmhk. It would fire right up, hot or cold with bmhk, but I would have to crank on it a good bit with bjym. So I copied all the crank/run/startup/etc.. parameters from bmhk into bjym. Bingo, I now had my good fast starts back.
    I would reccomend doing like I did. I opened two instances of tuner pro, opened each bin and then used the parameter finder to find every paramer that had to do with cranking or starting. I think I used the parameter finder to search "crank" then "run" then "choke" then "start", etc... Basicly any parameter or word I could think of, or that I saw I thought would have to do with cranking. After using the parameter finder, I then manually scrolled through every single parameter making sure I didnt miss any. You may also want to do the same with all the AE, PE, and DE parameters.

    Also, if your running a auto, why not use a 454 auto bin (such as BJKW) instead of the manual bin to copy parameters/tables from?
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

  4. #4
    Fuel Injected!
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    Thanks for the replies ,

    @ JeepsAndGuns ,

    I run BJKW in my other two trucks (one of the reasons I got that memcal from you ) , but to tell the truth I was never impressed with the idle quality of that cal no matter what I did to it . I found BMHK a while back, and while it was a manual .bin , I thought with its good idle quality it would be a good start . Guess i'll sit down with BJKW and construct another hybrid using that and BJYL , i'll see how that works out .

    @Mark ,


    I looked through the startup AFR , crank BPW , and some other tables but could not find anything out of the ordinary .

    Would posting a startup log help any ?

    Thanks for the help

    TOM
    1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
    2006 Forest river-Sierra 37' 5th wheel
    1999 Astro Van, L31 Vortec , 4x4 conversion
    1994 Pontiac Sunbird "Work ride"
    1993 K-3500 "Ex-diesel" 454/4L80E - '7427
    1992 454SS "Eh Stock" , Blower & '7427 swap .
    1992 S-10 434 SBC/Tremec - '7427
    1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
    1980 Z-28 454/700R4
    1977 Olds 98 Regency 403/700R4

  5. #5
    EFI GearHead ! EagleMark's Avatar
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    Location
    North Idaho
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    Probably if you have Desired AFR installed instead of Battery Voltage... have data logging on a cold morning and start the engine.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

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