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04-30-2024, 11:52 PM | #1 |
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Engine Stumbling, No Codes
Greetings wise and gracious forum members,
I have a 2013 BRZ that I have been struggling with for some time now. I was driving it on the OFT tune, stock headers. I had the valve spring recall done and the first dealer messed something up, so I took it to another dealer and they supposedly fixed it via a master technician. I told him to throw new spark plugs in while he was in there. It was fine after that for more than a year but then it started having the "firecracker" sound under the hood. I found the Counter Space Garage maintenance guide and replaced the Coil Packs with the quad spark ones they have. Maybe they're not good. I read on here the stock ones can fail on early cars. It was still popping so I sent the injectors to be serviced and seals replaced as on early cars, they can fail. Once it was put back together, no more firecracker but it had a misfire. I figured out it was a port injector so I replaced it. Now it's occasionally stumbling under load once it's warmed up, but there are no codes. I have replaced the 02 sensor and checked the MAF sensor to clean it and found the plastic was broken, so replaced it. I recently replaced the fuel pump and sock filter, all to no avail. I ave also tried reloading the tune and the stock tune. What's the best way to post my OFT data logs? The logs are me driving up a mountain road with the weird stumbling happening sometimes. I know some stuff from reading on here but nothing stands out to me as an issue. Sorry for the essay. Am I missing something obvious? |
The Following User Says Thank You to Suba-dude64 For This Useful Post: | humfrz (05-06-2024) |
05-01-2024, 12:10 AM | #2 |
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05-06-2024, 11:22 PM | #3 |
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I'd suggest that you try a different code reader. Usually, a misfire will throw a code.
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05-09-2024, 08:49 PM | #4 |
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I've been burnt from work, but I need to get this thing running. My backup car, the 97 Impreza, has developed a nasty case of the vibrations. The BRZ battery was dead, I threw a new one in it and it started but idled pretty poorly with misses. I grabbed the OFT and of course it now runs smoothly with no codes still. What are the best parameters to monitor for something like this? Thank you for any insight
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The Following User Says Thank You to Suba-dude64 For This Useful Post: | humfrz (05-10-2024) |
05-10-2024, 10:14 PM | #5 | |
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Quote:
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06-02-2024, 01:50 PM | #6 |
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Change your spark plugs. My plugs and coil packs went promptly at 100k.
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