1) your minimum psi for mapping boost is to low. Let the ECU control the car till about 3psi. Set the minimum value to about 3 psi and the max value about 2-4 psi above your highest boost.

2) Make sure to calibrate your map sensor using the values on the card that came with it.

 

Supposedly you can set it 0psi if you wanted to. The manual even uses that as an example IIRC. Mine is set to 2 or 3psi and I have seen occasional odd values in the 10% column also but they are infrequent. I have even seen a negative (vac) value there once or twice. I promise if I drive around logging I will get some hits in the 10% column that belong in the 0% column too and my gauge and MAP sensor seem dead on. What's up with this?

 

Do you have the formula in which we will use these values? That will give you numbers that are three digests, which can be used in the UTEC.

 

These are how my user constants and open loop fueling constants look like:




i'll try to take a pic of the calibration sheet today, it includes 4 or 8 diff numbers on it.

It doesn't change anything if i change the threshold to 3 psi or 4 psi, it still uses the %10 colon while i'm off boost. It just messes my fuel map as the map threshold changes.


How can i calibrate my map sensor with the calibration sheet on it? It includes numbers that can not be used as input for map calibration inputs.

 

#1)your rev limiter is set to 5500 rpms fyi.
#2) Try NOT using the injector scaling in the parameters, use it in the 0% load column. Set the injectors to 380/380.
#3) Try increasing the Min Throttle voltage for mapping and the min Throttle % for mapping.

Here is an example of a turbonetics map parameters. This was for 550cc's.

 

These are my comments, I hope it could help

1) Why is the rev limiter set to 5500 RPMs
2) I would change the delay time for the closed to open to zero
3) The MAP calibration (gradient) should be around 111
4) The MAP calibration (intercept) should be around 160
5) I would change the MAP averaging to zero

 

The rev limiter is set so coz the break in period isn't over yet and i dont want to rev past 5500 atm.

I used 2 for Closed Loop to Open loop transition coz it makes the transition smoother than any other value.

My map gradient and intercept numbers could possibly be wrong but these are the values that map reads most accurate.

Isn't UTEC using the injector scaling only for the 0% colon anyway?

 

According the Z UTEC manual, where it mentions on page 30


Based on the above, the TPS threshold Point for mapping will not have an impact if so changed while open loop fuelling is enabled. On the other hand, the TPS minimum value for mapping is to establish a 0% throttle point .... Did you experience otherwise?

Also could you please explain why we should not use the scaling option, but rather use the 0% column instead?

Thanks,

Az

 

my tps readings are 100% accurate.

Repeating my question, isn't the scaling option modifies the background map which is active during 0% colon ?

 

I'm using the injector scaling but 0% colon is also modified. My car is driving very smooth while off boost.. until 10% colon kicks in

 

Just try it with the injector scaling set to 380/380 and retune it that way. Once your in the 10% load column the Injecotrs should be completely run off the utec and not the ECU. Your problem is that you feel your going into the 10% load colum to soon.This would relate to the way you have your open loop parameters set up to handle mapping. IE min/max values for mapping.

 

The UTEC still reads the voltage of te TPS.

 

Those MapCalibrations may be good for YOUR map sensor but not his.There is a calibration card that comes with every map sensor, that needs to be calibrated to the UTEC.

 

How can i calibrate those numbers into utec? couldn't find it anywhere.

 

I'll try your suggestions in a few hours but I still think that UTEC should NOT go into the 10% colon before I reach my minimum map value for mapping.

 

According to Jermaine the only way you can use those numbers that come on the card is by having a mathematical formula, therefore, the only way you can use these numbers is by calling TurboXS and asking them to use those numbers provided on the card to give you the numbers that you can use on the UTEC.

Otherwise, please do explain how we can use these numbers?

Thanks,

Az

 

For what purpose may I ask? If your fuel map is based on RPM vs. MAP.

Thanks,

Az

 

So how does the UTEC know where it is in the 0% load colum? By magic?
The UTEC still uses MAF based fueling until it goes into the 10-100% load columns.

 

Jermaine should have the calculations on a Microsoft XL spread sheet, same as the temp correction values.Ask him to email it to you.

 

Hey Julian can you please post the temp correction spreadsheet (or send it to me)? Thanks.