B16A wont stay running.

I swap out the motor from my eg to my ek, start it up BAM! the motor runs great. I let it run for about 25 minutes to charge the battery and bleed the cooling system. I turn the car off and finish up some different things on the car. Time to call it a day.... the suns going down, mosquitos are killing me so I go to start the car one more time and its idling like crap. I give it gas and it dies on me. Tried to start it again, stays running for a few minutes running like crap and then dies. WTF!

 

You need to give more details. Do you have any CEL's?

 

^

 

No CEL's. Running an ex harness that came with the car to a P28 ECU chipped. Same computer I used in the eg for this same motor.

 

have you check wire plug..you might a loose a wire..

 

Wow speaking of plug wires. Thanks for the help but when I ask a question Ive exhausted everything I know. Ive been doing this for awhile, alot longer than alot of you have anyway.

I figured the problem out already and the reason why is cause I looked at the spark plugs. They were black and powdery so right away I knew what to check next and sure enough, fixed.

Any ideas?