swanicyouth
New member
- Mar 3, 2011
- 9,388
- 0
With a little less than a 100 miles on my car while coming home from work Monday night since getting my latest mods installed (ported OEM TB and lightened crank pulley) I had a flashing CEL come on while messing around with a WRX. It flashed for about 10-15 seconds and went away. I never really got into it with the WRX and when I got off of the freeway I found a straight away and stood on the gas and had NO issues.
Then yesterday while going to work, about 10 minutes into my trip, driving normal, the CEL came back but it wasn't flashing, it stayed solid. The road was wet so I wasn't really able to "get on it" but the perf seemed fine to me when I got on the gas as good as I could. After work, the night supervisor plugged in our Snap-On scan tool in and it came up as P0300B (multiple misfire) and we cleared it out.
I plan on driving the car "normal" for a while to give the computer time to maybe learn the new parts. Any thoughts by you guys/gals in the know?
This is the problem with "tuning". Reliability and drivability is decreased. A multiple misfire code can mean almost anything. That being said, I have seen computers "learn new parts" or CELS disappear permanently without any fix - albeit not common.
GoodLuck with this issue. My guess is you may need it.