Ok, so I'm not boosted (yet), but I do have an E-Manage. I got it a long long time ago when the first WSP Y-pipe was released for the 2002. I've been using it with great success with the Stillen headers, CarSound cat, WSP 2.5" mandrel B-pipe, and FlowMaster 60 series. I have tuned the car for the best A/F ratios at WOT and cruising. A little while back, I got the TS ECU upgrade. When I got it back, I had to re-tune again. Since then, I've been running good, but I am interested in tweaking the car a little more. So my questions are:

1) In order to use the Ignition timing harness, I read that I needed: "Quantity (6) of 1N55200 Diodes, from RadioShack.....White band on diodes facing towards the coil-packs....". Once I have them installed, how do I find out what my timing is set to, and what I need to adjust? Obviously I am tuning the car on a dyno. I do know that TS remapped the entire timing maps, but I have lost power and TQ in the area where the VIAS valve opens up. I'm interested in monitoring (and adjusting if necessary) the ignition timing - if it could help this area of the vehicle.

2) What do I need to do to monitor and tune the fuel delivery system. I'm interested in upgrading to larger injectors in the future, which the E-Manage will handle, but I would like to monitor (and adjust if needed) the current ones before the upgrade.

3) Is there any recommendations, etc, that you have for my setup. Here's a list of my engine related mods: PR CAI, 6th gen Lower IM, DMS UDP, Stillen Headers, CarSound Hi-Flow 2.5" Cat, WSP 2.5" Mandrel B-pipe, FlowMaster 60 Series (2.25" expanded to 2.5") muffler, TS ECU, and Greddy E-Manage. I am planning to go turbo at some point in the future, but am not sure how soon.

4) What are your recommendations on cams, considering the fact that I plan to go turbo? I've seen the Tomei cams, Nismo cams, and a few others. Also, what size/offset should I get? I don't want to buy a set (268) and end up having to remove them because they are too large later on when boost is added.

Treat me gently, as I am a newer member to the motor-side of modding. Thanks in advance.

 

I think they said you cant advance timing with the method they came up with to get the e-manage ignition timing to work. I think you can only set back the timing.

 

You cant advance the timing because we dont get the readings from all the sensors to be able to do that.

To monitor fuel, install the injector harness.

I would not waste your money on CAMS if you plan on going turbo, just dont see the point unless you got $2000 and a whole bunch of labor to waste.

Dixit

 

Thanks for the replys. I'll pick up the injector and ignition harnesses in the near future.

As for motor mods, what would you recommend for me to replace/upgrade before planning for the turbo? I'm eventually planning to buy a used motor and re-do it from scratch, but is there anything else I could buy in the meantime to get my current 3.5 ready to run low boost?

 

How do we know the e-manage is not advancing timing?

The instructions on the install I got from the 350z forums said it didn't matter what order you wire the ignition harness, just so your inputs and outputs stay consistent with the white and black stripes. So I installed the harness in no particular order and while it worked fine for retarding timing, when I tried to advance timing the engine ran really rough. Since then I wired the harness correctly matching cylinders 1-6 with the correct colors of the ignition harness and the engine runs great even when advancing timing.

The reason I am curious is because everyone is saying we can't advance timing but with what evidence? Maybe i'll go out today and monitor the timing while I retard it and advance it and see what I come up with.

If you plan to run boost no higher than 6 psi, you will be okay with what you have now. You will need to set up your e-manage injector map to increase fuel delivery under boost though. The 350z guys have an injector map that came with their greddy kit which might be helpful to work from, or maybe even use.

 

I would like to run a maximum of 9 lbs on stock internals, if it is possible. I do realize that it would shorten the life of the motor, but I plan to build a motor that will allow me to have alot more than 9. Obviously, there are some parts that can be used in conjuction with both setups, such as a new fuel pump. So I guess my question(s) is(are) this:

Knowing that I plan to eventually go over 6 lbs, what mods should I get that will support more than 6 lbs? Keep in mind that I would buy and install most of these parts before I was boosted at all. I'm just trying to find things that would work with a stock motor, a 6 lb boosted motor, and the ultimate "built-up" motor's boost limits (which I haven't determined how far I want to go yet).

 

Reason why we cant advance timing because it doesnt read the the crank sensors. It technically cannot truly advace timing without it, its tried to "simulate" and advance but it doesnt work to well, you will get a P1320 code for sure, I tried it a few times, I gave up on it mainly because no point in advancing timing if I spool my turbo at 1400rpm.

Dixit

 

I advanced the timing 2* across the whole vaccum side in Coreys car and noticed no difference...so I'm with Dixit, no go on the advance.

 

Since the E-Manage doesn't read our crank sensors, how does it advance the timing in other cars? What are we missing in order to get it to read the crank sensor in our car? Or is it an E-Manage issue (like a missing wire, etc)?

E-Manage News:

BTW... if you are an E-Manage user, the latest firmware is 1.39. If you are a VQ35 E-Manage user and upgrade to 1.39, be sure to change your rotary settings from 7-0-1 to 7-0-B. To install the latest firmware, you'll need the Greddy support tool for the PC. Instructions are included with the firmware upgrade.

Also, the PC software has been updated to 1.13, but I've yet to obtain a copy of it. As of right now, the latest available version for download is 1.11. There is not a log file yet to tell what changed.

And finally, be sure to sign up to the Yahoo groups EManage section for more info.

 

Guys, I havent tried it, but I see no reason why it could not advance timing. 2deg you wont feel on an NA car or a turbo in vacume/part throttle.

The manual does have a note that states...
IMPORTANT - Since the e-Manage does not receive a crank angle sensor signal, their is a possibility that the timing could be off by +/- 1deg.

Its makes sense to me, it will all ways be one complete revolution behind based on the actual cylinder spark when retarding or advancing, but it should be able to do it. I hope so...

 

Anything new on this? I didn't know diodes would have to be used for the ignition harness so the coils dont burn out.

Im i correct in saying pimpjuice appears not to have used diodes in order to use the ignition harness.

 

I tried hooking up the ignition system to my car. I couldn't get the car to start with it connected. As soon as I disconnected it and reconnected the factory wires, everything was fine.

Any ideas on why I couldn't get it to start?

 

I never mentioned it in my posts, but I did solder the diodes in to prevent the coils from burning.

If anyone is having trouble with this I would be willing to sell the ignition harnesses with the diodes already soldered in.

 

I would just make sure you have the same color scheme for the ignition wires... for instance: black stripe for input and white stripe for output. Also there might be a little confusion for the two yellow wires in the middle as the instructions say both the wires have black stripes. The left wire is the same as the top row and the right one is the same as the bottom row. So if your top row is the input, make sure your left yellow wire is also an input.

Also, your e-manage might have given you an error code when your ignition harness was connected, but it probably wouldn't be any help since we know it's the ignition harness.

We also know it's not your connections since your car starts when you connect the original wires together with your male/female connectors. Maybe just make sure the harness is pushed all the way into the e-manage untill you hear it click.

Also, did you put the diodes in?

If the diodes are put in backwards there is a possibility of the car not starting as they would restrict too much voltage. The diodes are installed on the output wires going to the coils with the gray, or white, stripe on the diode going towards the coils.

 

According to my E-Manage book, the White striped wires are the inputs (from the ECU) and the Black striped wires are the outputs (to the coils).

I installed the diodes with the black stripe facing the coil on the output wires. I used 1N5400 diodes (I believe that is what I used - I got the number from my350z.com forums).

I did notice the yellow wires were both labelled with a black stripe in the book, so I looked at the writing to verify that the white striped wire was the input.

I've posted a copy of the page from my E-Manage book at:
http://maxima.theowensfamily.com/ima...e-ignition.gif

The instructions that came with the actual harnesses were in Japanese, so I couldn't really use them. I'm a simple American white boy, so Japanese translating isn't at the top of my "best abilities" list.

If you find an error in my book, my install, etc, please let me know, as I want to get this installed.