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  1. #11
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    Britt
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    1994 Camaro Z28
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    Quote Originally Posted by Tubby Z28 View Post
    Tune, also do you run catch can? Have properly functioning pcv system? If it's too fat it'll wash rings and wipe the bearings out man.

    Unvented, no biggie. Get msd cap which converts it to vented or diy vent it

    Sent from my SAMSUNG-SM-G935A using Tapatalk
    Don't have a catch can. As far as I know the pcv system is stock and hasn't been checked. But that's helpful I will def be getting a catch can and going through the pcv system.
    1994 Camaro Z28 l 5.7L V8 6-speed manual l 45K original miles l LT1 to LS1 coil conversion (LTCC) l Magnaflow Exhaust

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  3. #12
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    Quote Originally Posted by Stormyweather View Post
    When my car ran rich. I mean rich exhaust and all. It was an injector stuck open. Check that out.

    Sent from my LGLS990 using Tapatalk
    I will check this too thanks
    1994 Camaro Z28 l 5.7L V8 6-speed manual l 45K original miles l LT1 to LS1 coil conversion (LTCC) l Magnaflow Exhaust

  4. #13
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    Mike Storm "Stormy"
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    Yeah I had one stick burned or went thru 10 gal of fuel in 5 miles. Everyone even me thought it was worse.

    Sent from my LGLS990 using Tapatalk



    1995 Trans Am - CAI - TB coolant bypass - Headers & Performance Muffler - Poly mounts - stock LT1/A4 - 13.3 1/4 - 1.9 60 foot , driven daily.
    2008 C6 Corvette LS3 Snake charmer Ram Air intake. 6 Speed Switchable mild to wild exhaust.
    2002 Silverado LT Extd Cab Z71 5.3 A4 Composite Bed Stock

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  6. #14
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    Mike Storm "Stormy"
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    Cause of the white vapor like smoke and strong fresh fuel smell

    Sent from my LGLS990 using Tapatalk



    1995 Trans Am - CAI - TB coolant bypass - Headers & Performance Muffler - Poly mounts - stock LT1/A4 - 13.3 1/4 - 1.9 60 foot , driven daily.
    2008 C6 Corvette LS3 Snake charmer Ram Air intake. 6 Speed Switchable mild to wild exhaust.
    2002 Silverado LT Extd Cab Z71 5.3 A4 Composite Bed Stock

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  8. #15
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    Shaun
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    1994 Formula
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    Quote Originally Posted by camz2894 View Post
    Don't have a catch can. As far as I know the pcv system is stock and hasn't been checked. But that's helpful I will def be getting a catch can and going through the pcv system.
    I run a Norris motorsports lsx version bolted behind icm/coil bracket. Acts as a spacer for icm, and hooked into pcv. I just have the regular hose to tb on passenger valve cover. Keeps the intake and valves clean

    Sent from my SAMSUNG-SM-G935A using Tapatalk
    2021 Charger Scat 392
    1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot

    The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
    10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!

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  10. #16
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    Fred
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    Might be time for a Scan9495 data log.

    I've been following this since it was posted on CZ28.com a while back.... sent him over here when it became a question of LTCC vs. 24X. Definitely more 24X users here.
    SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.

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  12. #17
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    Quote Originally Posted by Injuneer View Post
    Might be time for a Scan9495 data log.

    I've been following this since it was posted on CZ28.com a while back.... sent him over here when it became a question of LTCC vs. 24X. Definitely more 24X users here.
    I just checked out that Scan9495 data log post on CZ28. Very helpful info.. No codes were thrown from the obd1 scanner but the signals were checked coming out of the opti and were irregular from the high voltage side of the opti every time the car shut off. A possibility could be too that a good signal was being produced but then the LTCC was screwing up the signal when it gets to the box.. Just a thought but it probably has something to do with the optispark given that its the same indicators as before with the car shutting off randomly and running rough the longer its on.
    1994 Camaro Z28 l 5.7L V8 6-speed manual l 45K original miles l LT1 to LS1 coil conversion (LTCC) l Magnaflow Exhaust

  13. #18
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    Shaun
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    Quote Originally Posted by camz2894 View Post
    I just checked out that Scan9495 data log post on CZ28. Very helpful info.. No codes were thrown from the obd1 scanner but the signals were checked coming out of the opti and were irregular from the high voltage side of the opti every time the car shut off. A possibility could be too that a good signal was being produced but then the LTCC was screwing up the signal when it gets to the box.. Just a thought but it probably has something to do with the optispark given that its the same indicators as before with the car shutting off randomly and running rough the longer its on.
    Sounds like opti module failing as it gets hot. Just to be sure there is no issue with icm? Coil?

    Sent from my SAMSUNG-SM-G935A using Tapatalk
    2021 Charger Scat 392
    1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot

    The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
    10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!

  14. #19
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    Ryan
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    1994 Camaro Z28
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    Back to the original question at hand, the 24x was one of the best investments I ever did. I recommend it to everyone
    94 Z28 - 396 - TH400 - 9in - SLOW


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  16. #20
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    Quote Originally Posted by Tubby Z28 View Post
    Sounds like opti module failing as it gets hot. Just to be sure there is no issue with icm? Coil?

    Sent from my SAMSUNG-SM-G935A using Tapatalk
    There shouldn't be any issue with icm because I have the LTCC. Here are pics of the wave forms. Pic 1 is just as it begins to break down and pic 2 is when it shut off.wave form2.jpgwave form1.jpg
    1994 Camaro Z28 l 5.7L V8 6-speed manual l 45K original miles l LT1 to LS1 coil conversion (LTCC) l Magnaflow Exhaust

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