'02 WRX cylinder misfirer (p030*)
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I suggest anyone that gets the p0304, p0303, p0302, or p0301 and your car is still under warrenty BRING IT IN. I brought mine in to the (North Aurora, Illinois) dealer near my house. They (DAVE is AWSOME) reset computer and replicated the CEL and error code within a day. The way they fixed it was to take the CPU out of my car and send it to SOA. There it was reprogrammed with an updated version of the software.
Not only did this erease and fix the CEL, but i get 350 miles on a full tank when i use to get 290/295. So of course i assumed they bumped the power down in this now software.... NOPE!!!
I had been to a local AWD dyno near my house a few months back. 172 at the wheels..about average to high for a '02 WRX.
Now I get 185 at the wheels. The Dyno company couldnt believe it and gave me 6 pulls for free to replicate the 185bhp numbers. Every time i got 182 or 185!!!!!!!!!!
So they put a shop owned Skyline on there that they knew the exact BHP it made. Hit it right on the nose. So the Dyno was working properly.
Let me know what you think. Im extatic!!!
Not only did this erease and fix the CEL, but i get 350 miles on a full tank when i use to get 290/295. So of course i assumed they bumped the power down in this now software.... NOPE!!!
I had been to a local AWD dyno near my house a few months back. 172 at the wheels..about average to high for a '02 WRX.
Now I get 185 at the wheels. The Dyno company couldnt believe it and gave me 6 pulls for free to replicate the 185bhp numbers. Every time i got 182 or 185!!!!!!!!!!
So they put a shop owned Skyline on there that they knew the exact BHP it made. Hit it right on the nose. So the Dyno was working properly.
Let me know what you think. Im extatic!!!
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From: ...a craphole in No.County San Diego
Car Info: MMVI AW WRX STI
I think the misfire code problem with '02 ECUs was posted about 2 years ago
, but never with documented proof of a "power increase".
From everything I've read, it was just something with the ECU interpretation of the CAS signal that resulted in false misfires. You must have been down on power because of those false misfires.
Nice to know...thanks for posting it!
, but never with documented proof of a "power increase". From everything I've read, it was just something with the ECU interpretation of the CAS signal that resulted in false misfires. You must have been down on power because of those false misfires.
Nice to know...thanks for posting it!
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