Originally posted by CougarGT:
The 2nd seems a little flakey to me, otherwise its a great start for tuning.



The blips on the second run look to be timing pull by the knock sensor to me. Mine did the exact same thing when I had my timing problems (uhh, gotta make sure the coil pack is grounded in my case but my graph looked MUCH worse).

What spark plugs are you running? If you have the stock ones in there (APP764 or equivalent), I suggest going a step colder (APP103 or equivalent). That *could* be the culprit, especially since you did two back to back runs and a too hot set of plugs would show their symptoms on the 2nd (and subsequent) runs as they heated up.

The knock (if that's what it is) certainly isn't from running lean, but you will want to be careful when it does get leaned out that you don't introduce more knock, until you identify the cause of those blips. Might want to be a little more conservative on timing when you get the chip reburned.

Otherwise, nice start. On to 200!