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  1. #1
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    Default Aem ems ignition/injector phasing

    Hello Guys and Gals. I'm looking for someone running Aem on their sr20 using distributor and 24-1 cas disk. Specifically I'm looking to see what you have your settings set to on the Ignition phasing option, and Injector phasing option. I believe everyones numbers in these options will vary but I'm looking to see what you have yours set to for comparison purposes. If you're using AEMPro, to get to your injector phasing option, go to the top and click Fuel-->Advanced Fuel-->Injector Phasing-->Options-Injector Phasing. To get to your ignition phasing options, go to the top and click Ignition-->Advanced Ign-->Ignition Phasing-->Options-Ign Phasing. Thanks in advance.

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    Default Re: Aem ems ignition/injector phasing

    I will get you mine when I get home. Give me an hour.

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    1993 NX2000 -- Slate Grey Metallic, a few mods.

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    Ignition 0,18,6,12
    Injection 12,6,18,0

    Brent
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    1993 NX2000 -- Slate Grey Metallic, a few mods.

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    for phasing, mine ended up around 4.3 or so on the ignition phasing and that matches up with what Ashton was getting in his install also. Josh, aka @unijabnx2000 I think has the same settings. The disk is setup a set way and will be the same for everyone. The phasing is the only thing that may change from setup to set. I am running S15 coils so my phasing is a bit different and my dwell is very different than stock.

    Brent
    1993 NX2000 -- Slate Grey Metallic, a few mods.

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    Quote Originally Posted by coach View Post
    for phasing, mine ended up around 4.3 or so on the ignition phasing and that matches up with what Ashton was getting in his install also. Josh, aka @unijabnx2000 I think has the same settings. The disk is setup a set way and will be the same for everyone. The phasing is the only thing that may change from setup to set. I am running S15 coils so my phasing is a bit different and my dwell is very different than stock.

    Brent
    Yeah from what I understand everyones ign phasing differs since you have to set that yourself. What is the value showing on yours for injector phase?

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    7.00 on the Injector Phasing.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

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    Okay Thanks Guys!

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    Quote Originally Posted by coach View Post
    for phasing, mine ended up around 4.3 or so on the ignition phasing and that matches up with what Ashton was getting in his install also. Josh, aka @unijabnx2000 I think has the same settings. The disk is setup a set way and will be the same for everyone. The phasing is the only thing that may change from setup to set. I am running S15 coils so my phasing is a bit different and my dwell is very different than stock.

    Brent
    I think my phasing is different... ill have to grab my laptop and look
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  9. #9
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    I just pulled up the injector phasing for the DE and DET in the startup calibrations... the DET has 4 the DE has 14
    Last edited by unijabnx2000; 01-21-13 at 12:34 AM.
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


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    Quote Originally Posted by unijabnx2000 View Post
    I just pulled up the injector phasing for the DE and DET in the startup calibrations... the DET has 4 the DE has 14
    Thanks, noticed this too. On stock distributor I'm guessing those values stays the same. But when you look up the instructions on setting up the ecu to use the 24-1 cas disk, I think these values are supposed to change, not sure, I'm no aem expert. For example, this is the instructions on changing the settings to use 24-1 disk on ka24de Notice you're supposed to change the injector phase values.

    Heres another example, instructions on changing the settings to use 24-1 disk on a rwd sr20det

  11. #11
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    And how r those settings set using mazworx hall sensor with aem cdi module and aem pencil coils..
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  12. #12
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    Quote Originally Posted by SR20VVL View Post
    And how r those settings set using mazworx hall sensor with aem cdi module and aem pencil coils..
    I believe Ashton is using the hall sensor.
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  13. #13
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    Ashton help plz..
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  14. #14
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    have you tried finding the instructions for it, or looking on the aem forums?
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  15. #15
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    Yep I tried but unfortunately nil help found even with aem tech support I couldn't start the car & if I use the settings that mazworx provided with their sensor the car doesnt fireup..dunno am lost :upset
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    you have to set the timing (ignition sync)
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  17. #17
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    I did nothing changed
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  18. #18
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    I need to know what will b the setting for cam/crank edge trigger + sync trigger setting + ignition phasing + injector phasing
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  19. #19
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    FYI ignition sync is unique to each setup


    you have to use a timing light
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  20. #20
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    K..I understand that.. but what if my ignition sync was correct and my other setup is wrong..the car wont start..
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  21. #21
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    most people use falling like it shows on the 24:1 instructions... Mine on the other hand, seems to like both using rising.

    But if you are using the hall sensor, id figure out what they did. can you see it syncing while the engine turns over? have you checked for fuel and spark while cranking?
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  22. #22
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    I tried theis setting on my car still nil help
    Ignition 0,9,3,6
    Injection 6,3,9,0
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  23. #23
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    this is for my mazworks hall kit. there wheel is setup is like the Honda K1 hall sensor not the 24-1 aem disk. i also run s15 smart coils so take that into account.
    Last edited by Mr.sentra_specv; 01-21-13 at 07:44 PM.
    1 slow N/A b13 SE-R
    1 even slower 08 Bullit Mustang :rofl:

  24. #24
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    Thanx buddy...I will give it a try BTW did u swap any jumpers inside the aem ecu
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    I use S15 coilpacks as well, and afaik there isnt any setup that calls for doing that. ..... I have heard of honda guys opening their ems to change jumpers though.
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  26. #26
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    And Ashton can u confirm this??? as my setup is just same as urz
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  27. #27
    Axle Smasher
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    there is no need to do jumpers on a nissan sr20 AEM. they are setup for a hall sensor from the start. some honda ecus are not.
    1 slow N/A b13 SE-R
    1 even slower 08 Bullit Mustang :rofl:

  28. #28
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    just a basic question but are you getting spark and fuel when u crank?
    1 slow N/A b13 SE-R
    1 even slower 08 Bullit Mustang :rofl:

  29. #29
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    Yes, mine was set up exactly like Roccos (MrSentraSpecV). Mine worked perfectly fine until one of the poles on the hall sensor went out for no reason the very next morning. It is imperative that you have the sensor gapped properly as well. Its very finiky. I set mine up using Mazworx's instructions and the car fired right up. Im back on a distributor and 24-1 disk again though.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

  30. #30
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    Mr.sentra_specv....the setup u send me is the same setup mazworx provided me with the sensor how ever if I choose honda t1 trigger from the wizard of AEM turner the sync setup changes...in both cases the car cranks and start sync is ON but it doesnt start...BTW ignition & fuel is avail..when I put back the sr20 CAS the car starts and runs fine the only problem with the CAS is am having timing error while descending..
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  31. #31
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    Quote Originally Posted by liv2die06 View Post
    Quote Originally Posted by unijabnx2000 View Post
    I just pulled up the injector phasing for the DE and DET in the startup calibrations... the DET has 4 the DE has 14
    Thanks, noticed this too. On stock distributor I'm guessing those values stays the same. But when you look up the instructions on setting up the ecu to use the 24-1 cas disk, I think these values are supposed to change, not sure, I'm no aem expert. For example, this is the instructions on changing the settings to use 24-1 disk on ka24de Notice you're supposed to change the injector phase values.

    Heres another example, instructions on changing the settings to use 24-1 disk on a rwd sr20det
    This is because there is major differences, one being one is COP and the other is distributor and single coil. There are major differences in setup. One being the spark tooth count, one is 24 for COP and the other is divided by 4 for 4 sparks per revolution so it has a spark tooth count of 6 to trigger spark 4 times per cycle evenly split.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

  32. #32
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    Ok then more than likely your ignition sync is wrong and you need to set your timing with a timing light while cranking. Turn off the injectors so they are not firing when doing this. If your getting sync then its just a setting thats off.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

  33. #33
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    Thanx Ashton for ur reply..can u send me ur base cal.when u were running the hall sensor.. if u still have it....
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    Dont have it sorry. It was the same as Rocco's and the Mazworx sheet, the ignition phasing was slightly different but the initial setup they gave got the car to start. I am running and AEM twinfire cdi box as well so thats the reason it changed some.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

  35. #35
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    Quote Originally Posted by ashtonsser View Post
    This is because there is major differences, one being one is COP and the other is distributor and single coil. There are major differences in setup. One being the spark tooth count, one is 24 for COP and the other is divided by 4 for 4 sparks per revolution so it has a spark tooth count of 6 to trigger spark 4 times per cycle evenly split.
    Yeh I know the differences between the two. My question is not on cam/crank settings or ignition settings, its on the injector phase value and why the value has to change from what's in the base calibration when using the 24-1 cas disk. I used those two images to show that they ask you to change the injector phase when using 24-1 disk on both the cop and distributor setup. But neither of those are relevant to our fwd (distributor using) sr20's. Is everyone that's using aem on a fwd sr20(w/distributor and 24-1 disk) leaving their injector phase at either 4 or 14? Because according to aem instructions the ka guys and rwd sr20 guys must change there injector phase when going to 24-1 disk...

  36. #36
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    Its because of differences in the distributor and where the disk sits in relation to TDC. That is why there is a difference in the phasing numbers between pretty much each vehicle.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

  37. #37
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    I think (and may be wrong) the DE has 14 so the fuel can sit on the hot valves longer and vaporize more since its NA....
    1992 NX2000 - GTX28 - RS6
    Coming soon - Hardtop NX2000 - Roller rocker


  38. #38
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    Quote Originally Posted by ashtonsser View Post
    Its because of differences in the distributor and where the disk sits in relation to TDC. That is why there is a difference in the phasing numbers between pretty much each vehicle.
    And when you say phasing you're referring to injector phasing right? Because what you're describing sounds like setting ignition phasing

  39. #39
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    No, thats delayed vs having 7. The higher the number the more delayed the firing of the injector.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

  40. #40
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    I was referring to ignition. But it works the same way. Plus differences in the motor design.
    1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
    JMS Racing tuned to 716whp, 423wtq at 29psi
    10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

 

 
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