Hitting rev limiter at 5500 rpm?

[gofastr]

This is about the third time this has happened in my 08 coupe. While accelerating in second gear, at 5500 rpm, the rev limiter kicks in. I get the CEL light, another flashing red light, and reduced engine power. Any ideas why this is happening at only 5500 rpm?

 

[KNG SNKE]

This is about the third time this has happened in my 08 coupe. While accelerating in second gear, at 5500 rpm, the rev limiter kicks in. I get the CEL light, another flashing red light, and reduced engine power. Any ideas why this is happening at only 5500 rpm?

Original owner? Flashed PCM?

 

[gofastr]

Original owner? Flashed PCM?

No and no.

 

[Garron]

There is a well known bulletin to update the engine computer on the 2008.


SUBJECT:
Flash: MIL Illumination with DTC P0300 - Multiple Cylinder Misfire Set. Special Flash
Procedure Must Be Followed
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) and performing the Learn ETC routine with the StarSCAN®.
CAUTION: Be sure to follow the Repair Procedure steps in the order listed. PCM
damage may occur.
MODELS:
2008 (ZB) Viper
NOTE: This bulletin applies to models equipped with a 8.4L engine (Sales Code
EWE) built prior to April 1, 2008 (MDH 0401XX).
SYMPTOM/CONDITION:
Some customers may experience MIL illumination along with a limp in condition with
limited power after the MIL. Further investigation by the technician may find Diagnostic
Trouble Code (DTC) P0300 - Multiple Cylinder Misfire is set.

 

[redtanrt10]

May need to be flashed like Garron posted, or possibly a bad cam sensor. The trouble code will tell you