More logs of the new GIAC program...no MBC control..

Nigel (no more S4) · 08-29-2005, 08:54 PM

Logs were taken at 5300ft above sea level, hence the lower MAF readings, about 75F. My FATS times on this software are around 7.2 seconds. Not good. I mean, with the setup I have, I think I should be seeing better than that!

Bear in mind, that I ran the v7 software for the longest time, and had nightmare TC issues. MBC was always set at 16psi. For these logs, I turned the MBC all the way out, taking it out of the equation. Run at 3rd gear pulls from 1500rpms to redline.

First, block 115. New software certainly has more lag than previous, but as you can see, the spikes are *almost* eliminated.

Second, block 003. No more TC.

Third, CF's

Finally, O2's. Something's not right here.

Looking for some advice....

Imolavirus@BuehnEngineering · 08-29-2005, 08:55 PM

Nigel (no more S4) · 08-29-2005, 09:00 PM

M3KILR · 08-29-2005, 09:04 PM

Nigel (no more S4) · 08-29-2005, 09:08 PM

JBear::FATS · 08-29-2005, 09:14 PM

thought the Bosch part got up into the low to mid 200's ?

Hibiscus Red S4 · 08-29-2005, 09:16 PM

At least that's my diagnosis.

rktskicar · 08-29-2005, 09:16 PM

I would expect about 5.5 sec at the worst.

Bruce

Nigel (no more S4) · 08-29-2005, 09:17 PM

Nigel (no more S4) · 08-29-2005, 09:18 PM

If I have any kind of issue with O2's, they tend to throw DTC's too. I have no codes at all. I'm gonna replace them anyhow.

08-29-2005, 08:54 PM	#1
Nigel (no more S4) Junior Member Account #: 77913 Join Date: Jul 2004 Posts: 4,841	More logs of the new GIAC program...no MBC control.. Logs were taken at 5300ft above sea level, hence the lower MAF readings, about 75F. My FATS times on this software are around 7.2 seconds. Not good. I mean, with the setup I have, I think I should be seeing better than that! Bear in mind, that I ran the v7 software for the longest time, and had nightmare TC issues. MBC was always set at 16psi. For these logs, I turned the MBC all the way out, taking it out of the equation. Run at 3rd gear pulls from 1500rpms to redline. First, block 115. New software certainly has more lag than previous, but as you can see, the spikes are almost eliminated. Second, block 003. No more TC. Third, CF's Finally, O2's. Something's not right here. Looking for some advice.... __________________ done

08-29-2005, 08:55 PM	#2
Imolavirus@BuehnEngineering Elder Member Account #: 33927 Join Date: Mar 2002 Posts: 17,986	was that WOT 3rd gear? __________________ -Jacob ^^^CLICK SIG FOR BUEHN ENGINEERING WEBSITE^^^ <big><big>Website Here!!!</big></big> <big>Items For Sale</big>

08-29-2005, 09:00 PM	#3
Nigel (no more S4) Junior Member Account #: 77913 Join Date: Jul 2004 Posts: 4,841	yes sir __________________ done

08-29-2005, 09:04 PM	#4
M3KILR AudiWorld Super User Account #: 35340 Join Date: Apr 2002 Posts: 6,737	thats a pretty bad Fats, I managed a 5.5ish one with some TC and similar mods on old X __________________ AWE-EPL-StaSis-Fiber Images-OZ-Labree/666 Fab

08-29-2005, 09:08 PM	#5
Nigel (no more S4) Junior Member Account #: 77913 Join Date: Jul 2004 Posts: 4,841	It's downright wrong. Stock cars are similar. I know I suffer with airflow at alititude, but jeez __________________ done

08-29-2005, 09:14 PM	#6
JBear::FATS Senior Member Account #: 9725 Join Date: Sep 2000 Posts: 4,427	MAF G/S seem low, I'm more familiar with Hitachi readings, but I still thought the Bosch part got up into the low to mid 200's ? __________________ ________________________________________ 2001 S4 6-Speed Santorin Engine/Drivetrain: ASP Custom Tuned Stage III Fueling, RS4 Y-Pipe/Clutch/Fuel Pump/IC's, X1 Intake, Samco F-Hose, APR Bi-Pipe, Piggie Pipes, Miltek Single, AWE DTS, APR Snub, TG SS, VAST Water/Meth Kit. Suspension/Brakes: Vogtland GT, Neuspeed Rear Swaybar (Med), Stoptech 332 BBK. Exterior: 18" BBS CH, M3 Lip Spoiler, SPP Foglight Bulbs, RS4 Grill, E-Codes. Interior: UUC Alcantata Boot, TwinData EFU, Strat S4 Logo Floor Mats, HW V1, PhatBox.

08-29-2005, 09:16 PM	#7
Hibiscus Red S4 Member Account #: 57154 Join Date: Jun 2003 Posts: 4,646	You have a bad MAF and probably some bad 02 sensors At least that's my diagnosis. __________________ Registry Logbook

08-29-2005, 09:16 PM	#8
rktskicar AudiWorld Super User Account #: 44443 Join Date: Oct 2002 Posts: 8,592	Doesn't seem right. 7.2 sec is too slow for FATS. What were your previous times? (on old X). I would expect about 5.5 sec at the worst. Bruce __________________ Stock 010 6MT Blue Sprint B8 S4. Premium +, Sport diff, B&O BBS CH, 255/40/18 Bridgetstone RE960 AS 01.5 6MT ASP Stage 3 S4 (sold 9/25/09)

08-29-2005, 09:17 PM	#9
Nigel (no more S4) Junior Member Account #: 77913 Join Date: Jul 2004 Posts: 4,841	It's an 01.5, Hitachi. And I'm over 5000 feet above sea level = less airflow __________________ done

08-29-2005, 09:18 PM	#10
Nigel (no more S4) Junior Member Account #: 77913 Join Date: Jul 2004 Posts: 4,841	not bad MAF, 5000+ above sea level = less airflow. O2 log I'm not convinced about If I have any kind of issue with O2's, they tend to throw DTC's too. I have no codes at all. I'm gonna replace them anyhow. __________________ done

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