PDA

View Full Version : Need Help with Idle and Turbo Tuning!


jamesbond2509
August 12th, 2014, 01:22 PM
Folks!

It has been a while since I've been on this site. I've recently removed my blower and have installed A turbonetics T7675 Im having some trouble idle tuning in gear. When ever im in gear and stopped, the idle fluctuates from 22-32 degrees of timing. If someone can look at my tune and make some suggestions that would be very helpful!

Thanks
joecar
August 12th, 2014, 09:20 PM
Hi JB, I'm looking thru your file (and of course everyone is welcome to so)... :)
joecar
August 12th, 2014, 09:37 PM
Some general comments:

B3618: need to this to EQR 1.25 for boost (i.e. when MAP exceeds B3613 which you have set to 101 kPa).

B3647: set to provide some increase in EQR as MAP approaches 100 kPa.

A0009 and B0101: 105 kPa columns are not equal.

A0012, A0013: set these to 511 mph.

B4001: is your FPR manifold referenced...?

Are you getting a MAF DTC immediately on engine start...?
joecar
August 12th, 2014, 09:37 PM
...

When ever im in gear and stopped, the idle fluctuates from 22-32 degrees of timing.

...Do you have a log file of this...
statesman
August 12th, 2014, 11:52 PM
For idle... your Base Spark in Park/Neutral is 15 degrees and your Base Spark in Gear is 27 degrees. Why have you set them so far apart?
jamesbond2509
August 13th, 2014, 11:30 AM
Hi JC I have made some changes and have some comments to you recommendations, please advise. Thanks

B3618: need to this to EQR 1.25 for boost (i.e. when MAP exceeds B3613 which you have set to 101 kPa). Changed

B3647: set to provide some increase in EQR as MAP approaches 100 kPa. Changed

A0009 and B0101: 105 kPa columns are not equal. Changed

A0012, A0013: set these to 511 mph. Already set to 512 but changed to 511

B4001: is your FPR manifold referenced...? Yes

Are you getting a MAF DTC immediately on engine start...? Yes Please advise?
joecar
August 13th, 2014, 01:15 PM
B4001: is your FPR manifold referenced...? Yes
Then your B4001 table is incorrect, it should be flat.



Are you getting a MAF DTC immediately on engine start...? Yes Please advise?To run MAF-less (SD) you want to see any one of the MAF DTC's, is this what you see...?
jamesbond2509
August 14th, 2014, 11:31 AM
Then your B4001 table is incorrect, it should be flat.

To run MAF-less (SD) you want to see any one of the MAF DTC's, is this what you see...?

Interesting, I always thought for the return fuel system with the FPR you need to adjust B4001 to account for the pressure various manifold vacuum pressures.

And yes I always get p0102 - is there any way to get the system not to display p0102?