Hondata

Thank you I agree. I definitely need more fuel up top. I'll double check my injectors (came with the car so I had to look up size)

First, thanks so much for your input. I still shouldn't be at Lambda = 0.95 at 100% throttle, 8K RPM though. Right? I'm wondering if there is a TPS issue going on. I do have very hard engine mounts.

Also how about the pull attached. This was one of the last ones (starts to be more noticeable when ...

Right sorry thats a long file. Heres a list of the pulls:

Pull #1:
- (12.407) Start Time
- (14.063) 1st Gear running lean
- (17.782) 2nd Gear running lean

Pull #2:
- (97.329) Start Time
- (99.625) 1st Gear fuel cut (8380)
- (102.875) 2nd Gear fuel cut (8150)

Pull #3:
- (152.829) Start Time ...

I have a mostly stock RSX with a k20z1 (RBC intake manifold, CAI, race header, HKS exhaust). I just took the car to get Dyno tuned and although it runs great up to 8K RPM, it has been fuel cutting sometimes before the 8600 RPM limiter we have set. Before the car used to run out to 8600 consistently ...