I contemplated added to the existing threads I started to provide a re-cap, but sometimes it’s a pain, especially with the longer threads, to get at the end. You’ve gotta sometimes scroll through the whole thing - not sure how long the thread markers stay that keep track of the last post read, but in any case, figured a new thread might be the best way.
- Delayed hot start issue
- Project updates related to ‘Delayed Hot Start’ topic
- Go Time! Delayed Hot Start - Uggghhhh
Been running the car fairly regularly for about 4 months after all the updates with no hot start issues. Granted, it’s not the 100 degree temperatures that summer brings, but I’ve had no issues so far under various restart conditions - 5-, 10-, 15-, 30- minute delays after running hard.
Here’s a synopsis of all the things that might have helped with the issue (in the order I think fixed the issue):
- Repaired crimped fuel feed hard-line
- Cleaned and rebuilt the injectors
- Replaced all fuel hoses
- Removed A-bank FPR
- Replaced B-bank FPR
- Removed sump filter
- Added pre-sump 300-micron fuel filter
- Replaced CTS and ECU fuel temperature sensor
- Replaced O2 sensors
— Probably not related, but — - Replaced distributor venting system
- Removed AAV
- Replaced air cleaner assemblies (trumpets) with funnel air filters for more air flow
- Added oil catch catch can
- Removed air rail
- Removed exhaust honeycomb from downpipes I’d missed earlier
- Removed charcoal canister and related plumbing
- Added new hose and filter to fuel tank to replace the vapor return line to the canister
I think that covers it…