I have a Chaparral Signature 260 with a 5.7 GSI Volvo Penta that needs a ECM but unfortunately they are not available any longer. Choice is to remove the Throttle Body Fuel Injection and go to a Carburetor. Second Option is to replace the entire engine (tired of fixing things every two...
I have a 5.7 EFI Volvo Penta in my 2000 Chaparral. It keeps bogging down when I reduce RPM to around 2,000. If go into neutral and then throttle up at will rev past 2,000 to its normal range. When I slow down and hit around 2,000 that's when it bogs down. If keep it in neutral and rev it up and...