Hello, I am in need of some help. I need my Diy megasquirt fixed. I bought it brand new from diyautotune and attempted to build it myself. I have no prior experience with building an ecu, but I figured I would give it a try. I build it, and it actually synced up to everything within the car, but would not start it. I put back in my stock ecu and it started right up. While I was building my ecu, it slipped my mine to ground myself. So I think while I was building it I may have messed something up. But like I said, everything synced up and it even started the car once, but seemed to be running on a couple of cylinders. I don't know what is wrong or how to fix it. I was wondering if someone on here is capable of repairing it for me. Thanks for looking and any help is greatly appreciated.

 

No need to ground yourself, they aren't that sensitive. You haven't given us nearly enough information to go on so that's why you aren't seeing any responses.

When starting any engine you need fuel, air and spark to make fire. If the motor fired once then you had all three. Now you have to tune it to get the right amount of fuel and air and spark it at the right time.

If you want help you need to post your tune, a log of you trying to start it and pics of both sides of the board so we can see if there are any wiring mistakes.