UpRev ECU tune results for Semtex's Z

PunKidd · 11-07-2009, 06:21 PM

Oh, and the actual bug was that the cold condition ignition table was being looked up wrong. The patch we did shifted the whole table by a couple of columns, so when the car was cold and at low load, the software was actually looking outside of the table and getting bad values for the ignition advance. Pretty simple fix once we figured out where the problem was.

semtex · 11-07-2009, 06:45 PM

Thanks for resolving this issue so quickly, Jared. I'm sure I speak for all of us when I tell you that we're very grateful!

B1nks · 11-07-2009, 08:57 PM

Shiiiiiiiiiiiiit, I know I'm grateful, it was embarrasing lol. Thanks Jared and I'll be getting a Cypher cable ASAP !

semtex · 11-20-2009, 11:32 AM

Quick update. Sharif loaded the updated ROM into my ECU yesterday, and I can confirm that the cold start issue is indeed fixed. No more lurching!

11-07-2009, 06:45 PM	#2 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	Thanks for resolving this issue so quickly, Jared. I'm sure I speak for all of us when I tell you that we're very grateful! __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

11-20-2009, 11:32 AM	#4 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	Quick update. Sharif loaded the updated ROM into my ECU yesterday, and I can confirm that the cold start issue is indeed fixed. No more lurching! __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

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11-07-2009, 06:21 PM	#1 (permalink)
PunKidd Base Member Join Date: Nov 2009 Location: Austin TX Posts: 10 Drives: Lots of fast cars Rep Power: 16	Oh, and the actual bug was that the cold condition ignition table was being looked up wrong. The patch we did shifted the whole table by a couple of columns, so when the car was cold and at low load, the software was actually looking outside of the table and getting bad values for the ignition advance. Pretty simple fix once we figured out where the problem was.

11-07-2009, 08:57 PM	#3 (permalink)
B1nks Track Member Join Date: Apr 2009 Location: Houston,Tx Posts: 721 Drives: 2009 370Z Base 6MT Rep Power: 508	Shiiiiiiiiiiiiit, I know I'm grateful, it was embarrasing lol. Thanks Jared and I'll be getting a Cypher cable ASAP !