Hi all,
Been having this issue recently. At wide open throttle, typically when shifting from 2nd to 3rd gear, my car will begin to sputter and ping, almost as if it's hitting a limiter. It's a difficult condition to describe, so I've attached a datalog. It happens more frequently when the engine and trans are hot or when there is a lot of added weight (i.e. passengers or full gas tank). Running MHD Stage 1+ tune.
Datalog: https: //www.spoolstreet.com/graphs/sputtering-at-2nd-3rd-shift-3-18-22.15935/?series=2,19&zoom=-7,664"]Sputtering at 2nd - 3rd shift 3/18/22
Things to note upon shift into 3rd gear:
- Low pressure fuel sensor readings look low, not sure.
- Abnormal cylinder timing corrections across all cylinders
- Throttle position is closing while accelerator pedal is at 99.6 position
- Lambda bank 1 shoots up to around 23.5, lambda bank is steady around 13
Feel free to ask any questions. TIA for any help!
Been having this issue recently. At wide open throttle, typically when shifting from 2nd to 3rd gear, my car will begin to sputter and ping, almost as if it's hitting a limiter. It's a difficult condition to describe, so I've attached a datalog. It happens more frequently when the engine and trans are hot or when there is a lot of added weight (i.e. passengers or full gas tank). Running MHD Stage 1+ tune.
Datalog: https: //www.spoolstreet.com/graphs/sputtering-at-2nd-3rd-shift-3-18-22.15935/?series=2,19&zoom=-7,664"]Sputtering at 2nd - 3rd shift 3/18/22
Things to note upon shift into 3rd gear:
- Low pressure fuel sensor readings look low, not sure.
- Abnormal cylinder timing corrections across all cylinders
- Throttle position is closing while accelerator pedal is at 99.6 position
- Lambda bank 1 shoots up to around 23.5, lambda bank is steady around 13
Feel free to ask any questions. TIA for any help!
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