Ok,

So ive got a 2001 s2000 with basic mods. Tanabe exhust, V2 intake, Dc headers, JIC test pipe, and a NOS fogger 50 shot that is barely used. Im instaling an AEM EMS system in ( with the UEGO model 30-1052U ). Ive got the EMs harnesed up and instaled. The UEgo cable is run through the firewall and the sensor is installed.

Heres where I run into trouble

Ok so when im atempting to configure the ecu i use a base map that came with the software. On my version 1.11 the map that i think is right is 1052.v.11. So now i have to calibrate my throtle position sensor. No problems there. And now to check the igniton....hmmm. I sort of know how to go about this with a car with a distributer, but what about one without. How do i finish all of my ems calibrations so that it will be a highway ready car and i can later tune once ive worked with the software more.

How do i time the ignition correctly?
What else am i forgeting?
Once im done, will this be safe?



Anyways, i would love some insight
Thanks

 

Follow the directions in the documentation regarding how to setup the cranking timing. The base map probably already has a farily close value, but dont rely on it. ALso I would reccomend checking out the aem electronics forum on aempower.com. The have some good s2k specific info.

 

Oh and the system is really great, but unfortunately its complexity lends to the initial bewilderment of how to set it up.

There are many implementable safety options , including various forms of pulling timing and fuel, as well as other controls and options such as nitrous and cooling system control.

AS far as actually tuning it, I reccomend to
1st. find a good starting setup,
2nd-then tune the idle speed using the iac settings as well as adjusting fuel and timing in the idle/noload area of both maps.
3rd. Use automapping to tune the the load/heavyload portions of both maps. You will need to decide what you want as far as A/F ratios in different regions of the two maps.
4th-Once that is done you can setup 02 feedback to maintain good fuel efficiency in the regions where you might be at part throttle. As well as possibly idle.
5th- you can start tuning to gain power by increasing timing and adding fuel to maintain desired A/F at heavy load conditions. Make sure to use the knock sensor input to check for detonation. If you do get detonation the AEM will automatically pull timing if you set it up to do so. This will be done by the ems on the fly so will not be permanent changes to your maps. So when in the actual process of tuning you can fight detonation by adding fuel, if that doesnt work, you should pull timing in that area.

Detonation is really bad so make sure the knock sensor is setup correctly.

Disclaimer- I do not claim to know what I am talking about in this post, and as such you should not do anything that I have said unless the instructions tell you do to so as well. I am not responsible for any damage or losses caused to you as a result of you following my directions. I am also truly sorry that the world has come to the point where I should feel the need to add a disclaimer to a hopefully helpfull post on the internet.

 

To calibrate the ignition you'll need a timing light gun thing, or whatever they're called. You can get one at any parts store I'm sure.

 

right i have the timing light gun thing. The problem is im not sure where to plug in the third of its wires. Ussuallly it would co to the number one lead off the distributer to the spark plug. But with a coil pack where do i hook that up, and even than once i do that, what are the steps?

 

Its been a while since I've done it, so don't quote me I only recall hooking it up to the #1 plug and then aiming at the main pulley. From there its just a matter of lining it up with the mark on the block and getting your reading.

 

Pull the spark plug cover off and clamp the timing light lead to one of the wire that goes to the #1 coil (front one). With the car warmed up and idling, observe the timing light and adjust the EMS setup timing in the software to match the timing light. It will be somewhere between 5 and 6 degrees advance.

 

doesnt he need to do this with the old ecu? otherwise he wouldnt get any ignition pulses.

 

Ok so let me se if ive got this. pick a wire on the number one plug and connect it. Than once ive done this. aim the light at the belt and if a mark on the belt remains in the same place through the pulses than im timed?

 

Your timing light should have a magnetic pickup which is clipped over one of the leads of the # 1 coil wire. Point the timing light at the timing mark on the block and adjust the setup software until the mark on the block lines up with the mark on the harmonic balancer (crank pulley). Pretty simple.