m50b25tu problem

selfdestroyer · Post by **selfdestroyer** » Wed Oct 18, 2017 8:40 pm

my engine have problem with idle, on 870cc siemens deka injectors I have PW 1.5ms, I change to 630cc siemens deka injectors, but injectors pw at idle same 1.5ms at 14.7 AFR. Fuel pressure 3 bar.

PSI-Motor · Post by **PSI-Motor** » Wed Oct 18, 2017 9:54 pm

What is the specific problem?

selfdestroyer · Post by **selfdestroyer** » Wed Oct 18, 2017 10:14 pm

very small pw, injector can't working stable, bad idle, always after I depress throttle engine stopping.
may be engine running on semi-sequential mode?

PSI-Motor · Post by **PSI-Motor** » Thu Oct 19, 2017 6:28 pm

I run 2500cc injectors all the time and i don`t have any problems. First of all go in to your fuelcut parameters, and raise your fuelcut from 1500rpm to 2000rpm and 1250rpm to 1800rpm. And overrun decay rate from 100% to 20%. Raise your ignition on 650rpm and 450rpm range.

RHD · Post by **RHD** » Thu Oct 26, 2017 12:29 pm

play with your injector dead times

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