Hey everyone,
I am having trouble getting my start map figured out on my 03 s2000. I have a full race tubular manifold with a precision 5952e turbo and am tuning with aem v2. I have fic 900cc injectors and a walbro 255. The weird thing is it starts better when it's cold but once it's warmed up I have to crank it for a few seconds two sometimes three times to get it to fire up and when it does it seems like it doesn't want to start very well. It comes in really low rpms and works it's way up and then runs good from there. I am by no means a tuning guru but i understand the basics and I am always trying to learn more. Can anyone shed some light on what my start map should look like? Here's what it looks like now from a video I watched on youtube...

 

When the car finally gets to normal operating temperature, typically fuel is removed since the engine is warm. Does it idle okay when you are at normal operating temp and you are just having difficulty starting the engine at normal operating temp? If so, you need to add more fuel on the start at a higher coolant temp.

disclaimer: I dont' have any experience with AEM and I am by no means a tuner so these tables are a little confusing. But I am guessing the start vs temp needs to be less linear?

 

Yes the car idles fine it's just getting it to start once the car is at normal operating temperature. That could have something to do with it, it would make sense. Everything i've read has told me the crank injector time and the initial crank pulse would be the only thing that would effect the starting and they didn't really go into detail on the start extra vs temp

 

I can't see the image here at work, however, when it comes to starting, you'll either require more or less fuel at a given temperature if you're having issues. Generally, you need more fuel (IPW) during crank (and warm-up) when it's colder... With E85, even more. With warm start issues, you'll work it the same knowing you do not need nearly as much fuel as colder temperatures.

 

That map is setup with no initial crank pulse when the engine is warm.. Thats about the only odd thing I see there.