Rpm drops extremely low and then backfires

[redline454]

ive searched everywhere but cannot find this exact problem....
i have a redtop sr20
apexi neo
profec ebc
front mount 3inch exh
rest is stock...

just recently my car when getting into neutral the rpm drops extremely low but then recovers back up... im not sure if its supposed to do this but i doubt it.... at the same time it backfires loud and nearly evry single time.
just now after hitting 3500rpm then getting into neutral it dropped really low and died??????

im not sure if its timing bad sensors any help?

[GSXRJJordan]

Wow, this has never been covered before...

... not.

Search for SR20 "stumbling", etc.

Most likely a boost leak, or could just be your BOV vented to atmosphere. Check all your vacuum lines and boost couplers.

[redline454]

hey i didnt no but thanks ill try and look