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Hard cold and hot start…
- Thread starter Ertech
- Start date
Will folow this link
www.500eboard.co
HOW-TO: Checking M119 & M104 fuel pressure | "HOW-TO" Tutorial Articles
GSXR edit: Click here for "How to" on replacing FPR. For diagnosing issues with the M119 such as difficult cold and hot starts, it's important to be able to check the fuel pressure. This gives an idea as to the pressure at the injectors during various running conditions of the engine. It can...
Last edited:
Assuming a cold engine that has been off for several hours or overnight:
Fuel pressure = zero at rail
Turn key on, fuel pump should run for 2 full seconds, fuel pressure should immediately jump to 55-60psi and remain there
Pressure should remain at 55+psi while cranking
Normal crank time is less than 2 seconds
Video below shows a normal cranking time:
Fuel pressure = zero at rail
Turn key on, fuel pump should run for 2 full seconds, fuel pressure should immediately jump to 55-60psi and remain there
Pressure should remain at 55+psi while cranking
Normal crank time is less than 2 seconds
Video below shows a normal cranking time:
