Drag Racing Tech - Anyone have SES light/ping after installing Harlan 2 step?

I just hooked up a new one of these and when its plugged in I am getting severe detonation at part throttle, 10 degrees of KR and I can still hear it - its pretty bad. Getting P0351, 352, and 355 codes a couple minutes after driving the car. It works as far at the rev limiter and latching but it appears a couple coils are firing together. Unplug it and everything is fine, pretty nice after waiting over a month to get the thing..

I e-mailed harlan but I dont expect an answer soon - anyone else ever have problems with one of these or I am just a lucky one?

You must live under a black cloud :(
My buddy and I both have Harlan 2 steps and they work flawlessly. If I see him at the Camaroz28 Nats this weekend I'll mention for him to check this out.

Na, I usually have pretty good luck with stuff. Harlan already got back to me on it, I just get a little frustrated since I was looking forward to using it, my lights with this car leave a bit to be desired :(

So what was it?

So what was it?



Something is wrong with it, I tried it on a C5 in the shop and it did the same thing - something is bad in there...

I assume he is sending me replacement.