08 Civic si - injectors/tuning issue
Posted: Sat Jul 26, 2025 2:02 am
I’m having an issue with my boosted 2008 Civic Si. It has a full DC5 Creations turbo kit and supporting mods. Last night, I had a live tuning session with my out-of-state tuner. He made a base map to start the car, but it would only crank and not start. We thought it was a fuel issue and tried adding and removing fuel, but it didn’t help. I’m running a Walbro 535 pump with a DeatschWerks relay kit for extra power. We tried adjusting dead times, but it still wouldn’t start.
I told him the car had previously started with a Hondata base map, so we uploaded that map, made a few changes, and the car started and idled fine. After adjusting for 1000cc injectors and re-uploading, it wouldn’t start again, but going back to the base map fixed it.
When driving and live-tuning, the car sputters at full throttle and only runs smoothly if I ease into it. Any tips on getting it to run properly with the correct dead times or how to diagnose this would be appreciated!
Posted this on another thread just to get more traction and get any help to solve this . Any tips would be helpful thank you all !
I told him the car had previously started with a Hondata base map, so we uploaded that map, made a few changes, and the car started and idled fine. After adjusting for 1000cc injectors and re-uploading, it wouldn’t start again, but going back to the base map fixed it.
When driving and live-tuning, the car sputters at full throttle and only runs smoothly if I ease into it. Any tips on getting it to run properly with the correct dead times or how to diagnose this would be appreciated!
Posted this on another thread just to get more traction and get any help to solve this . Any tips would be helpful thank you all !