Power Logger Low Boost Readings

[iwantatta]

I just finished installing my power logger on a stock car. I followed the instructions from the vortex website but i seem to be getting low boost readings. I can't get it to read anymore than 10psi when i get on it.

I've set the option to 3bar map in the power logger. Also checked the grey wire and its reading 5.11v. It was reading 5.33v until i hooked it up to the ECM. I haven't done anything with the ground so i'm not sure if thats the issue or not. I've used a multimeter to check for a good ground at the sensor and its seems to be ok. Car is seeing some knock occasionaly 2-3 degrees when at 10psi of boost.

A little lost on what to try next. Could i possibly only be getting 10psi boost on a stock car?

 

[TurboDave]

I just finished installing my power logger on a stock car. I followed the instructions from the vortex website but i seem to be getting low boost readings. I can't get it to read anymore than 10psi when i get on it.

I've set the option to 3bar map in the power logger. Also checked the grey wire and its reading 5.11v. It was reading 5.33v until i hooked it up to the ECM. I haven't done anything with the ground so i'm not sure if thats the issue or not. I've used a multimeter to check for a good ground at the sensor and its seems to be ok. Car is seeing some knock occasionaly 2-3 degrees when at 10psi of boost.

A little lost on what to try next. Could i possibly only be getting 10psi boost on a stock car?

Yes its possible to only be making 10# on a stock GN. BUT. Since it is stock, is your map sensor the original 2 bar? If so set PL to match that.

Posted from the TurboBuick.Com mobile app

 

[iwantatta]

Guess its not completely stock

Its a 3 Bar map i got from gbodyparts. Is it something i should be concerned about? I thought it would read 13-14psi. I don't have an adjustable wastegate yet either. Just trying to get a good baseline before moving on. Don't have a good boost gauge yet to compare it against either

 

[TurboDave]

Well if you still have the stock wastegate actuator and stock chip and all, it's very possible you could only be making 10# of boost. Usually the stock setup will run closer to 12, but you never know.