So I purchased a 2003 busa with only 2209 miles. Only mod done is full yosh exhaust. Last registration was 2015. Entire fuel system was trashed. Replaced tank, rebuilt pump, new injectors, plugs, all fluids. The problem is it will only start with iap hose off. It runs very rich and breaks up if I'm to hard on the throttle. Normally around 3k-4k. If im slow on the throttle i can get it up to atleast 6k before it happens again.I've read alot of threads and when the issue is resolved they don't post what it was. Any help would be greatly appreciated!
03 busa will only run woth iap hose off
- Thread starter 03busamd
- Start date
Hayabusa Wannabe
Registered
Hayabusa Wannabe
Registered
Are the injectors OEM?
Hayabusa Wannabe
Registered
Some have had problems with non-OEM injectors. You may have to try OEM injectors. Old ones could potentially be cleaned.
What about the fuel pressure regulator? Has the fuel flow been measured with a gauge?
What about the fuel pressure regulator? Has the fuel flow been measured with a gauge?
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