I've had this issue ever since I installed the Greddy Turbo Kit with E-Manage Ultimate. The car would bog down and stall out during a full stop. It felt real crappy when driving at low rpms. During a warm start the car would fire up and just die immediately.

My Tuner, Giles, mentioned that the problem lies with the injector size I chose. FIC 650CC injectors. I pieced my Greddy kit together myself so I didn't have the RC550s the kit originally came with.

This is the last email Giles sent me before he went MIA.

"Almost normal(ish). You are using larger injectors and they cannot handle the very small pulse widths that are required at idle etc. when the ECU is targetting an AFR of 14.7:1. That said, The car is learning its fuel trims based on the weather confitions so as time goes by the problem should get less and less often.

Another aspect of the problem is also related to the size of the injectors, but in a slightly different manner. When you turn the car on it is expecting to see around 2.9V from the MAP sensor. This it does indeed see otherwise it would throw a check engine light. By this voltage it it decides what the pulse width should be when cranking over the car, say 20ms. 20ms for the stock injectors would be fine, but in your case with 650cc injectors the pulse width should be half of that. Due to a bug in the e-Manage that I've been trying to get fixed for years their injector scalling function does not work correctly with injectors more than 50% larger than stock injectors (that's why all their turbo kits are such low boost). So, to boil it all down you get a 20ms shot from a 650cc injectors instead of a 10ms shot and hence there is a chance of fouling out the plugs. As you try starting the car again the stock ECU removes pulse width during cranking, making things better and better each time. I don't know if it has crank learning but most modern vehicles do.

So, to wrap it all up. You may get the odd stall when coming to a stop or during starting but it should get better with time as the stock fuel trims learn."


However, even after driving the car in all sorts of weather conditions for many miles, the problem never stopped or became less often.

I'm going to grab some RC550 injectors and see if it solves my issue. Unless you guys think otherwise. Please feel free to comment. I also don't want to hear anything about ditching the EMU and going standalone. I need to pass emissions inspection. KPro is also out of my budget.

 

Just get an aem ems

 

I run ID1000 injectors and have never had any problems like this with my EMU. What version of software/firmware do you have?

 

I was just reading your thread "Greddy Emanage Ultimate Chronicles". And was going to PM you.

I don't know what software/firmware I'm using, I never really hooked up the emu at home as I took the car straight to my tuner after the install.

In another thread there was someone who mentioned the quality of my FIC Injectors may be the issues and that with ID1000s my issue might be solved.

 

I run the same set up as Urban and have no issues, runs like stock. It could be your injectors, or your settings in the e-mange, or a combination of both. There is not a lot of people running or supporting the Emanage, so its difficult to troubleshoot when you/others stray away from what combination we know works well. You may just have to change to these ID 1000 injectors to help troubleshoot, if you cant determine what else may be going on.

 

Yeah, that thread is outdated now. I'm on a 3.25" pulley around 10-11 psi and still the stock clutch. Haven't done the meth injection yet.

I would think fuel injector clinic injectors would be good, but I haven't heard anything about them.

 

Yeah, that thread is outdated now. I'm on a 3.25" pulley around 10-11 psi and still the stock clutch. Haven't done the meth injection yet.


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Actually that pulley is larger Brad, either a 3.5 or 3.4" I don't know what Brand it is, its been passed around a lot. You still have a fair bit of room to go yet... someday

You wanna try that 3" yet? Or how about a Custom 2.7"?

Clutches are overrated