1FastCRX

I have recently rebuilt my b18a1. And now the thing spudders at idle. Other than that it runs like a champ. But when I was comeing home the other day and the check engine light came on. So I ran home and pulled the code from the ecu code 15. So I checked the code at it turned out allright. So a friend of mine told me to swap ecus because that one was bad. So I swapped it with my other ecu I got for this swap. And now the thing won't fire so I sawpped it back to my first ecu and it won't fire eather. The car ran fine after I did the swap. But after I had to rebuild the motor things just went down hill.