Hello Everyone I need some assistance. I just replaced my F20C with an F22C since I dropped a valve and I cannot get my car to stay on. I am using AEM EMS with a turbo setup. I start the vehicle with normal cranking, it fires up and sounds normal and then it abruptly shuts off. Sometimes it stays on for several seconds and sometimes it shuts off immediately after cranking. I have a wideband installed and it does not look like it is leaning out, it seems more like ignition is not working properly. Anyone have any ideas?

Here is a video of one of the times it stayed on for a longer period of time:

http://s4.photobucket.com/albums/y147/neem...nt=MOV02136.flv

[URL=http://s4.photobucket.com/albums/y147/neeman77/?action=view

 

My car was doing the same thing...it turned out to be a ground. Go through and take all your grounds off and clean them...I also added a ground from the block to the chassis under the car. Mine stopped doing it right away. You can give it a shot. P.S...the reason it does it is the AEM is not getting grounded properly and shuts off. I figured it out by listening to my fuel pump click on and off during priming. Take off and clean the back of the head ground, and both grounds under the car.

 

I checked and cleaned all the grounds that I know are on the engine, I checked from the back of the head, the one from the block to the subframe and the ground beside that on the block. Are there others? When I open up AEM to the crank parameters I am getting Timing Errors during cranking and multiple when it shuts off. What does this mean?

 

I have looked into this a bit more, I am thinking that my problem is that I am running a motor out of an 07. The crank wheel and cam trigger wheels are different along with crank and cam sensors. I am assuming that I have to change the trigger wheels, or can the settings be changed in the EMS?

 

.. ^

 

Anyone have any tips on getting the trigger wheels off the cams?

 

Check the helms, I know on the exhaust cam it is a reverse thread. You can just hold the cam with a crescent wrench and then unbolt the end of the cam while it is in the car

 

yes, swap the sensors to a pre dbw. as they changed.

 

also, I believe the DBW only uses an exhaust cam sensor where the non-dbw uses one on the intake and exhaust

 

All fixed up guys. For anyone who has this problem in the future, it turned out to be the camshaft trigger wheels and the crankshaft trigger wheel. I was running the AP1 valve cover already so I had both AP1 exhaust and intake cam sensors. I also was running the AP1 crank sensor. Just a note, the 06+ intake cam trigger wheel is the same as the 00-05. All you have to change is the exhaust cam trigger wheel.