OldHead-MKV-Owner
Well-Known Member
- Thread starter
- #1
Need some help with my logs. A few things I noticed but unsure if they’re a problem. More importantly, am I missing anything.
The car runs great WOT as far as feel goes. At lower speeds between 2-3K rpm I has this weird hesitation/surging that happens.
My observations
MODs (only engine performance listed)
Let’s get the shitty low speed driving log out of the way. I’m not smart enough to figure out the issue but it’s crystal clear from the log, there’s an issue.
09/18/23 MultiMap – Stage 2 Low speed Throttle Issues
https://www.bootmod3.net/log?id=6508c2b7ae729bad57686ee1
The rest are in order from oldest to newest. You will notice in the first log that I don’t have the Ethanol sensor on the CANBUS. I was reading from my fuel-it app.
09/03/23 Stage 2 E50 octane – 3rd to 4th E51
https://www.bootmod3.net/log?id=64fa8da8d10b43e4b40cbfc9
09/09/23 MultiMap – Stage 2 4th to 5th E53
https://www.bootmod3.net/log?id=64fc94ebc090c6dcb30c49bf
09/09/23 MultiMap – Stage 2 5th to 6th E53 Timing
Timing looks funky in 6th gear
https://www.bootmod3.net/log?id=64fc94e6ae729be4e81f1c51
09/10/23 MultiMap – Stage 2 4th to 5th E46
Timing looks good
https://www.bootmod3.net/log?id=64fdea48d10b43f4c48d54ac
09/10/23 MultiMap – Stage 2 4th to 5th E46
https://www.bootmod3.net/log?id=64fdea46c090c6baea742403
09/13/23 MultiMap – Stage 2 3rd to 4th to 5th E46
https://www.bootmod3.net/log?id=65028574ae729b1524631e23
09/14/23 MultiMap – Stage 2 4th to 5th E46
Noticed towards the end of the log the Pedal is around 50% yet Throttle is at 100%.
https://www.bootmod3.net/log?id=65036fc7d10b435ca6e15a04
09/15/23 MultiMap – Stage 2 5th to 6th E52
Timing looks off in 6th gear. Cyl1 and 2. Hit 16.5deg in 5th gear
https://www.bootmod3.net/log?id=6504b45fc090c60e7ebfd822
09/16/23 MultiMap – Stage 2 4th to 5th E52
https://www.bootmod3.net/log?id=6505d40fc090c60e7ec08201
09/17/23 MultiMap – Stage 2 4th to 5th E56
https://www.bootmod3.net/log?id=65073b3ed10b430ffaa82528
09/17/23 MultiMap – Stage 2 3rd to 4th E43
In 5th cyl4 looks low on timing but the data says it’s correcting Cyl6. This confuses me, cause I’m dumb.
https://www.bootmod3.net/log?id=65073b3ed10b431366701fee
I know that’s a lot of logs but wanted to share a variety of gear pulls, IATs, E blends, etc.
Thanks!
The car runs great WOT as far as feel goes. At lower speeds between 2-3K rpm I has this weird hesitation/surging that happens.
My observations
- Boost rarely hits Target, even in the tall gears. Usually between 1-2psi under Target. Wondering if I have a small boost leak.
- If I’m doing a 2 gear pull, the timing is always worse on the second gear. Timing seems to be different for the same gear depending if it was the first or second gear in the pull. IATs shouldn’t be affecting this… in these cases below.
- Timing pulls seem to be all over the cylinder range. I was expecting more pulls/corrections on cyl6 but that’s not the case.
- Load actual is roughly half of Target. Not sure if this is an issue.
- BM3 Flex Blend Factors (ign,fuel,trq) never hits 1 and I went as high as E56/57 (the reading shifted during the run). Even at E57 it was .95, E56 was .93
MODs (only engine performance listed)
- AA DP
- Eventuri intake
- FTP charge pipe.
- BM3 CustomRom
- BM3 Flex-Fuel kit
- xHP Stage 3 trans tune
Let’s get the shitty low speed driving log out of the way. I’m not smart enough to figure out the issue but it’s crystal clear from the log, there’s an issue.
09/18/23 MultiMap – Stage 2 Low speed Throttle Issues
https://www.bootmod3.net/log?id=6508c2b7ae729bad57686ee1
The rest are in order from oldest to newest. You will notice in the first log that I don’t have the Ethanol sensor on the CANBUS. I was reading from my fuel-it app.
09/03/23 Stage 2 E50 octane – 3rd to 4th E51
https://www.bootmod3.net/log?id=64fa8da8d10b43e4b40cbfc9
09/09/23 MultiMap – Stage 2 4th to 5th E53
https://www.bootmod3.net/log?id=64fc94ebc090c6dcb30c49bf
09/09/23 MultiMap – Stage 2 5th to 6th E53 Timing
Timing looks funky in 6th gear
https://www.bootmod3.net/log?id=64fc94e6ae729be4e81f1c51
09/10/23 MultiMap – Stage 2 4th to 5th E46
Timing looks good
https://www.bootmod3.net/log?id=64fdea48d10b43f4c48d54ac
09/10/23 MultiMap – Stage 2 4th to 5th E46
https://www.bootmod3.net/log?id=64fdea46c090c6baea742403
09/13/23 MultiMap – Stage 2 3rd to 4th to 5th E46
https://www.bootmod3.net/log?id=65028574ae729b1524631e23
09/14/23 MultiMap – Stage 2 4th to 5th E46
Noticed towards the end of the log the Pedal is around 50% yet Throttle is at 100%.
https://www.bootmod3.net/log?id=65036fc7d10b435ca6e15a04
09/15/23 MultiMap – Stage 2 5th to 6th E52
Timing looks off in 6th gear. Cyl1 and 2. Hit 16.5deg in 5th gear
https://www.bootmod3.net/log?id=6504b45fc090c60e7ebfd822
09/16/23 MultiMap – Stage 2 4th to 5th E52
https://www.bootmod3.net/log?id=6505d40fc090c60e7ec08201
09/17/23 MultiMap – Stage 2 4th to 5th E56
https://www.bootmod3.net/log?id=65073b3ed10b430ffaa82528
09/17/23 MultiMap – Stage 2 3rd to 4th E43
In 5th cyl4 looks low on timing but the data says it’s correcting Cyl6. This confuses me, cause I’m dumb.
https://www.bootmod3.net/log?id=65073b3ed10b431366701fee
I know that’s a lot of logs but wanted to share a variety of gear pulls, IATs, E blends, etc.
Thanks!
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