uestion not sure if anyone has had an issue like this or any idea what it might be. I was in 5th gear at about 5000 rpms and I was about to up shift and then al of sudden my SES comes on nand flashes about six times and then goes away. any ideas???

 

Check the code. Even though the SES light isn't on, there will be a dtc code in the computer's memory.

 

That may be the utec picking up knock and retarding timing..It flashes the SES light on the WRX one to let you know its knocking.

 

I dont think the CEL flashes to signal knock on the Z with the UTEC...check the code man.

 

how long does it stay in memory?? I hopefully be able to check it tom after work...

 

I think most codes will stay for 100 start-ups after it pops up, then it will clear. Dont worry it will be there...

 

Usually a flashing code means you are misfiring at that time...

 

anybody know a good place to pick up a reader

 

eBay! I'll read it for you on Saturday.

The time it stays is dependent on the type of code.

 

read the code today..it is p0300. MIA was right random misfire. Anything I should do for this. Dave thanks for the offer on the read. I broke down figured be a good time to get one anyways.

 

P300, from rich,lean condition or fouled plugs...Check A/F at that load point and check plugs..


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It is weird that the light would flash like that from a po300. I'd bet he did get a knock event and the PO300 is a seperate issue. I'd expect the SES light may come on if you drive the car more.
Your a/f looked a little lean in places to me.

 

The last time I saw an SES light come on while driving and blink was when my friend blew his motor with his procharger

 

well here is my a/f let me know what you guys think...

 

I think I cant see it..

 

I can see it. Your AFR doesn't look bad. It appears to hover between 11.5:1 and 11.9:1, which is fine, but getting close to 12. If you're interested in running safe, you might want to richen it up to 11-11.5:1 depending on how much timing you're running.

 

Depending on your timing, 12.0 af may be too lean.