rev bounce

[Oliver.Wong]

so when i give my ‘05 V35 a lot of throttle in first gear the revs begin to ‘bounce’ above 4K rpm. they will get past 4k then continue to climb then drop a grand then climb again then drop again etc etc. it only happens in first and above 4k with a lot of throttle. i’m thinking poor fuel supply? any ideas?

Edited February 8, 2019 by Oliver.Wong

[V35_Paul]

could be few things

Fuel, Air and Spark. 

any codes?

[Oliver.Wong]

17 hours ago, V35_Paul said:

could be few things

Fuel, Air and Spark. 

any codes?

Don’t have the scanner in order to test it. Worth getting one?

[V35_Paul]

You can get cheap bluetooth ones off ebay. Some are too cheap and won't work so be careful