93'colttsi
15+ Year Contributor
- 95
- 8
- Dec 28, 2007
-
Chilliwack,
BC_Canada
So my problem is when I enable boost control, I just get wastegate pressure. I tried to set my base duty cycle table to 35 %, 50% and 95% across the board and I still just get wastegate pressure. I'm using ECM link v3 with a mac 3 port solenoid, hooked up using both ports on the external 38mm tial wastegate. Originally I hooked everything up, and left the "body control enabled" unchecked... which just reverts to oem bcs control ( always 100% DC when engine running) which explains why I was getting uncontrolled boost with the option not turned on. It's a GST so I'm trying to setup boost by gear.
Found out with the "enable boost control" unchecked, it is normal for the ecu to ground out the BCS at 100% duty as the stock BCS is closed when off. ( explains why when I dont have boost control checked, it runs too much boost) I'll have to use the scope on the control wire to see what's actually happening with the BCS duty cycle if its changing as requested in the base duty table. One thing I'm not mentioning also is that I'm running this car on 2g Maf so I do not have any map sensor signal being input to the ECU. Not sure if that will effect anything or cause my problem
Any help.would.be appreciated.
Found out with the "enable boost control" unchecked, it is normal for the ecu to ground out the BCS at 100% duty as the stock BCS is closed when off. ( explains why when I dont have boost control checked, it runs too much boost) I'll have to use the scope on the control wire to see what's actually happening with the BCS duty cycle if its changing as requested in the base duty table. One thing I'm not mentioning also is that I'm running this car on 2g Maf so I do not have any map sensor signal being input to the ECU. Not sure if that will effect anything or cause my problem
Any help.would.be appreciated.