C6 TT Tuning Issue - High RPM Missfire Question

[FastBlackTA]

I have recently begun tuning my APS TT C6. I have 60 Lb injectors, the MSD boost a pump, and an LC1 Wideband (which I am 99% sure is calibrated correctly). I have put the car in open loop.

If you look at the following tuning logs, you'll see areas where the TPS% is greater than 80%. Before the missfire, the car is getting plenty of fuel (AFR is in the 10.5:1 range). My problem is that once the car starts to spool up, it feels like I'm hitting the rev limiter (you can verify this with the lean spikes that occur at the end of the pulls). I am unsure as to what the issue is....ANY help would be appreciated.

Please click on the following link for my edit file, sanner config, and scan file.

www.nd.edu/~caschenb/tt_vette

Thanks

[redhardsupra]

gap your plugs tighter if you're running boost

[FastBlackTA]

Already have TR6's gapped at .35

[SMOKINV8]

Engine Diagnostics -> MAF Fail High

Change it to at LEAST 15000, which you have it patched to. I would personally put it around 18000 or so, but you can verify if this is the problem by logging MAF Hz and watching where it starts to cut out.

[EC_Tune]

When you applied the patch did you do a write entire? If not, the MAF patch wasn't applied...

[FastBlackTA]

When you applied the patch did you do a write entire? If not, the MAF patch wasn't applied...

Thanks guys....I got it figured out it was a MAF frequency issue like you guys said. Good to go

Thanks for the help!

Conrad

[INTHERED]

Thanks guys....I got it figured out it was a MAF frequency issue like you guys said. Good to go
Thanks for the help!Conrad

With the 60lb injectors what sizes are you using in your IFR table ?

How hard was it to get the closed loop AFR squared away ?

Thanks >>>>> INTHERED

[FastBlackTA]

Still running in open loop as I've been doing a little VE tuning. I'll post up once I go back to closed loop.