Hello,
I've performed quite a bit of research over the last few months with my particular issue. I still cannot resolve or acquire any type of redline for my neon. I can literally rev it to 8000k+ (this is a stock block, so obviously that is bad lol) My goal is a redline of 6300.
I have a FBO 2004 SRT-4. Dave Trojahn tuned me via Diablo on my new setup last summer. First revision eliminated my redline after he moved it up to 6500, unfortunately and accidently blew up the engine due to over-revving. I have since then replaced engine and here I am. We tried to obtain a redline again after many revisions with diablo and HPT, still no redline. I was told that it was a glitch in the Diablo tuner software, and that moving to HP Tuners would resolve this issue.
I purchased HP tuners, unmarried my Diablo tuner. Dave provided a recalibration of one of my last tunes, (BBG E85 O2 off for catless, and a BBG 91 O2 on for emissions) I have also attempt to apply redline and reduce to stock range of 6,000-6,250. I've attempted at least 15+ times. None of the tunes provide a redline. (Unfortunately i can't start my car on a stock-oem base tune because I have a BWS/3" O2 housing, and 1025CC injectors)
How can I resolve this issue? There has to be something wrong here if two tuners (diablo and HPT) and after 30+ tuned revisions/attempts there is still literally no redline/fuel cut.
I am currently making things as simple as possible. (I re-installed MPX 3" catted down pipe, returned back to 91 pump, and I am on a pump tune with o2 sensors on) No check engine lights, car runs fantastic in exception of absolutely no redline. Current 91 tune attached.
Thanks in advanced for your replies!
- Reuben D