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 Post subject: Anyone willing to review a log for me?
PostPosted: Sun Apr 20, 2025 7:00 pm 
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Joined: Fri May 07, 2021 10:53 am
Posts: 6
I recently purchased a blown up 2013 WRX which was tuned by a accessport. The previous owner told me it was tuned but not with a premade map. I have no idea who tuned it or what they tuned it for. the previous owner agreed to meet up with me and give me the accessport but then went MIA. The car has a new short block and starts and idles great but doesn't want to drive. Im hoping someone with experience tuning them would be able to look at a log and tell me if it could be tune related.
I feel like its definitely fuel related. I have replaced the maf, and 02 sensor and didnt notice any difference.
No CEL codes


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romraiderlog_20250420_133049.csv [11.66 KiB]
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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Mon Apr 21, 2025 5:11 am 
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Joined: Mon Jul 10, 2023 6:56 am
Posts: 35
Hard to tell since you're not logging much, but definitely maxing the fueling out at certain points.

Is this just idling? Or is this trying to move the vehicle?

Can you do another log with vehicle speed, engine load, IAM, knock, and boost logged?


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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Tue Apr 22, 2025 12:36 pm 
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Posts: 29
toytruck89 wrote:
Hard to tell since you're not logging much, but definitely maxing the fueling out at certain points.

Is this just idling? Or is this trying to move the vehicle?

Can you do another log with vehicle speed, engine load, IAM, knock, and boost logged?

Sorry OP if this is off topic. I was just wondering, toytruck89, how do you see that fueling is maxed out? Is it because the a/f sensor is hitting ratios above 15? Just a genuine question from someone trying to learn analysing logs.


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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Fri Apr 25, 2025 7:19 am 
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Joined: Mon Jul 10, 2023 6:56 am
Posts: 35
Most modern vehicles can compensate by about 25%.

The A/F learning is definitely hitting 25 at spots, and rarely (if ever), does it stay near 0 - 3%.

When I tune vehicles, I try to keep the vehicle's fueling to about 3% max deviation from max tune in normal conditions. That allows substantial room for the ECM to make changes for different environmental or road conditions. High altitude, low altitude, bad batch of fuel, and so on


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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Sun Apr 27, 2025 8:40 am 
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Posts: 65
stienes wrote:
toytruck89 wrote:
Hard to tell since you're not logging much, but definitely maxing the fueling out at certain points.

Is this just idling? Or is this trying to move the vehicle?

Can you do another log with vehicle speed, engine load, IAM, knock, and boost logged?

Sorry OP if this is off topic. I was just wondering, toytruck89, how do you see that fueling is maxed out? Is it because the a/f sensor is hitting ratios above 15? Just a genuine question from someone trying to learn analysing logs.

If you want to learn, you need good quality data, this log is not on multiple points.

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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Sun Apr 27, 2025 1:37 pm 
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Joined: Fri May 07, 2021 10:53 am
Posts: 6
I understand that log was not enough data. I wasn't expecting to run into the drivability issues I did and quickly tried to log what I could before I broke down. Ill post a new log While it seems the car is running a little to rich, its also very apparent its pulling a lot of timing which is what's causing the car to flood out and stall while driving. I'm not really sure what's causing the timing pull, as I don't see any evidence of knock or misfires.


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romraiderlog_20250426_161443.csv [12.22 KiB]
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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Sat May 24, 2025 6:56 pm 
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Joined: Sat Sep 10, 2011 11:27 pm
Posts: 105
I haven't looked at much besides my 02wrx so don't know much about a 2013.

Seems to me to be a way too much fuel when off throttle. Even when using accelerator doesn't seem to change much.
Not sure how bad this is but too much fuel can wash oil off cylinder walls and cause serious damage.

If you have a method to re-flash it, I'd look for a stock map. Or at least compare stock to what's on the running ecu.

Stock Maps: viewforum.php?f=35

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 Post subject: Re: Anyone willing to review a log for me?
PostPosted: Sat May 24, 2025 7:30 pm 
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Joined: Fri May 07, 2021 10:53 am
Posts: 6
I found the issue. The crank trigger was missing a tooth. Thank you to everyone who took the time to review the log.


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