incorrect vss and rpm

all-black · Post by **all-black** » Thu May 13, 2010 9:48 pm

i have been working with a tuner trying to tune my car but all my datalogs dont show the right rpm and or speed i am reaching. my calibration has a rev cut around 8600 and in all my datalogs my rpms dont ever show above 8100 when i bounce of the rev limiter. nore does it show my speed as being right. i have been doing 3rd gear pulls to my rev cut and my datalogs dont represent what im doing.

Post by **Hondata** » Fri May 14, 2010 7:56 am

In the datalog I see 8525 rpm. The only odd thing I notice is that the MAP sensor reading is low upon overrun. For a more details answer you will have to provide more information about what you have done to your vehicle, and the calibration.

mucter · Post by **mucter** » Mon May 17, 2010 12:02 am

Yup I see 8542 rpm. The VSS value never matches up with your speedo. That's totally normal, the VSS will read a few MPH lower on average.

Was this datalog made via the Flashpro alone, or was it done with a laptop?