Hi

Just to check (I have to ask just in case) did you fill out the vehicle profiles with the correct engine displacement (some of the vehicles require the displacement to be set for the maf calculation to work).

Ian

Ian,

Thanks for the quick response.

To answer your question, yes I would specify individually both the engine displacement and vehicle weight. Now, after the update it's made it even easier with the vehicle profiles, but yes the information was specified.

I’m starting to think that perhaps the MAF sensor may be out of calibration on those vehicles. I just wanted to make sure I wasn't missing a step.

Thanks again,

Joe

Cool, looks like you're doing everything correct then!

I'd need some debug to take things further, specifically the things mentioned at the top of the thread in the following URL:

http://torque-bhp.com/forums/?wpforumaction=viewtopic&t=459.1

If you could send the .csv file with that information in, I can get busy this end and see what's going on with the data you have

Ian

Ian,

I sent you the file you requested on the last post.

One thing though, after this last update(1.4.32) the vacuum reading changed. It now idles at -25 to -22 in/hg and as the engine's rpm and load change it go down to -3 to -2 in/hg which is way closer to the manufacture’s specs.

Thanks again for your help.

Take care,

Joe

Yes, thats good - I fixed the algorithm for working out vacuum/boost pressure in that version

The final adjustments should be to the Volumetric Efficiency of your individual engine (part of the vehicle profile), it's currently a default of 85% which is for most modern vehicles, however ported/flowed/race engines may approach up to 95% in terms of VE.

Get the specifications for your car's sensor. I have a 2004 SRT4 and I was perplexed for the longest time why it would read -9.8psi in torque and my gauge says -20psi. I noticed it to be off by about half in vacuum, ie -5psi on boost gauge would read -10psi in torque. I looked up the specifications and the voltage for my cars 2.25bar sensor and it would seem that 0v = about -13.5psi and since it pretty much always makes voltage it made sense why torque never read below -11.2psi. Positive pressures seem to be more accurate. Once I get some free time to actually compile the torque plugin and make sure I got eclipse all setup correctly I will give it a try to modify the code and get it running on my car and move on from there as either a standalone plugin or something that can be implemented into the program based on the vehicle selection. You don't run any piggy back systems either do you? Those give the pcm/ecu false signals to manipulate what it does so your odb port would never match your gauges.

Thanks.

I'll give that a shot. The cars I tested the software on were 100% stock. Except for the Cobra, it's had a little bolt-on work, but NO ECU(PCM) mods in anyway.

Ian, Thanks again for the help.

And Goldfingerfif thanks for the tip.

Take care,

Joe