Hey,
I'm having some starting issues with my rb25det neo. Its in a pretty much stock R34 GTT with an Elite 2000. It will just crank and not start, but sometimes will fire right up. I'm wondering if its my CAS that is the issue, but once it does start, it seems to run great.
It started this year after the Haltech install. Never had an issue before, and it worked perfectly for a week after installing the haltech too. The first time it happened, I could smell unburnt fuel, so I pulled the fuel pump fuse and it started up, so I thought it was just flooded. Now that doesn't work.
I put the timing light on it again, and the crank timing marks were nowhere to be found. Took the cas off thinking the key snapped, but it was fine. Put it back on and it started, and I checked the timing again and it was lined back up. Its almost like the ecu was seeing the timing 180 degrees out somehow. This has happened multiple times now, including this morning.
Some things I've tried:
I've taken out each coilpack and I get spark from all of them while turning my cas, and I hear the injectors clicking too.
I've synched my timing with the ecu each time.
I've cleaned the cas with sensor cleaner.
I've logged the ecu while cranking and it's getting signal from the cas.
I've looked over some wiring and can't see frays or anything.
Double checked my trigger settings, and they are the same as the original base map
I'm nervous to drive around now as it seems to be random when it wants to start. And it seems strange that once it actually starts, it runs great. Any ideas? I don't know anyone with a confirmed working cas otherwise I'd try swapping to see it it helped.