Loss of Power

[ESmorz]

After 4,000rpm my KA loses power and pretty much feels like it isn't getting enough fuel.

It's from an S14 and has bc stage 2 cams if that helps.

[jspaeth]

After 4,000rpm my KA loses power and pretty much feels like it isn't getting enough fuel.

It's from an S14 and has bc stage 2 cams if that helps.


Wideband? FP gauge? Compression/leakdown test? Oil/coolant look okay?

MAP sensor or MAF?

Could be so many things....how about a more detailed account of your setup....

[ESmorz]

It's an obdII automatic KA that was rebuilt about 3k miles ago, and is now in my S13.

[buentellomma]

are you running a cat? or straight pipe? kinda sounds like you cat is stopped up