i did tons of searching, anyway, does napa carry a map sensor that works with our cars? i dont have time to order a new MAP right now as im moving very soon (PCS). im not in a rush because my car is running just fine, feels no diffrent, but not being able to see what im boosting is annoying.

also later down the road, can i just buy the gms1 3 bar map sensor? do any other map sensors work for the balt that would be more reliable?

 

Just buy them from CED, they were the cheapest and I think Performance Autowerks was still the cheapest on the connectors. I haven't looked in a few months though.

You'll need both to go 3 bar BTW.

 

you gotta wire a new connector? looks plug and play to me.

 

The 3 bar MAPs have a different connector, the replacement 2.5 bar are plug and play.

 

so are you able to actually physically log up to 300kpa with a 3 bar, or is the ecm still unable to register beyond 255kpa?

Or is it just a matter of scaling the voltage signal in the boost tables differently?

 

The manifold kPa still maxes out at 255kPa displayed, but you can read the lower charge pipe pressure up to 512 kPa or ~45 lbs boost. At WOT they are essentially the same minus the throttle body pressure drop.

Tuning is easier with the 3 bar sensors when you can read actual boost pressure, not guess at it or count on your eye to catch it on the gauge or RPD.

 

everything I am broke said is correct.

3 bar maps on ced are less than 20 dollars, ive gone through several of them , it usually takes two days to get them

 

Is this a custom PID you made by any chance? If it is do you mind if I steel the function for it from you? Unfortunately I'm still a bit of a noob with certain things with HPT and I can't tell which sensor is the lower in order to log it.

Sorry to thread jack Dart, but hopefully this will possibly help you out as well when you do make the switch to the 3bars.

 

I include the logging config when I e-tune people, but I can post the PID for the lower charge pipe MAP that I use...

=[PID.2338.PSI]-[PID.51.PSI]

That's the Lo Res Boost sensor minus Barometric Pressure for the Charge pipe boost pressure. I call it Charge (psi)

 

Awesome man! I very much appreciate this.

Now is the scaling for this PID different for the 2.5 and 3 or does it not matter when only logging? I am currently on the stock 2.5's but will be upgrading to the 3bars shortly.

 

The scaling in the tune for the sensors sets the PID cal. It works for either sensor as long as it is correct in the tune file.

I prefer the stock base file modded for the GMS1 sensors. Less turbo nanny in that base file to tune off of than the GMS1 base file.