Post by hardrockacres on Oct 8, 2024 8:26:17 GMT -6
Have a 8090 that works great but if you take it over 70% engine load the engine RPM's just drop off and you get the "low engine rpm" alarm. Then it takes a while for the unit to recover. Get no codes when it happens. Unit is currently deleted and has a 50hp tune in it. We have replaced all the fuel filters, checked fuel flow from the tank, check pressure at engine lift pump, checked air filter cannister and replaced air filters. Checked all intake piping to intercooler for a blown hose/broken coupler.
When running the turbo will only get to about 24psi boost before it powers down and drops rpm. I know it has a smaller engine than our 9090's, but running in similar conditions ant similar engine loads they are in the 32-40psi range. Gonna pull intake pipe at turbo next to check inlet vanes for damage.
Dealer also suggested checking the check valve by the fuel pump to see if it holds 100psi for the rail pressure, as they are running out of ideas also. Fought this issue all harvest and now we are done but still trying to figure out where the issue could be for next year.
Any one else have similar issues with this engine and possible fixes?
When running the turbo will only get to about 24psi boost before it powers down and drops rpm. I know it has a smaller engine than our 9090's, but running in similar conditions ant similar engine loads they are in the 32-40psi range. Gonna pull intake pipe at turbo next to check inlet vanes for damage.
Dealer also suggested checking the check valve by the fuel pump to see if it holds 100psi for the rail pressure, as they are running out of ideas also. Fought this issue all harvest and now we are done but still trying to figure out where the issue could be for next year.
Any one else have similar issues with this engine and possible fixes?
