Just installed my 2.5bar map sensor and SD tune and whenever I hit boost the pedal dies and i get a code about map correlation and tps..I have to reset it each time. The pedal also randomly dies on me and I have to pull the battery to reset it..(even before the SD) but now it does it every time..anyone have any ideas?
2018 Infiniti Q60s
2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138
What are the codes spefically? It's likely a P0068, 0121 or 0106. Go into engine diags/General and max out the P0068 test enable RPM and P0101,0106 and 0121 enable coolant temp to disable them.
Eventually you'll want to log airflow against RPM and set the max airflow VS RPM table to those max values plus ~20% more. Then add 50% to the airflow delta and MAP delta.
Bill Winters
Former owner/builder/tuner of the FarmVette
Out of the LSx tuning game
P0068...and the pedal would die. I just maxed out that table and the issue went away. Im not sure what you mean by the rest of it though...
2018 Infiniti Q60s
2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138
Originally Posted by Snyper
keep in mind that table is an important safety feature that you pretty much disabled. It should be set properly and not just completely maxed out.
I agree, log the results and factor the stock table leaving a 20% safety margin. Reduced Power Mode is sometimes your friend
2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. 480/430
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Why does it happen? And how do I go about calibrating it? Theres so many damn tables haha
2018 Infiniti Q60s
2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138
the pcm is seeing too much airflow for a given throttle position/rpm (based on a stock configuration) and thinking, oh shit! something is broken, this car is out of control, im shutting down!
you can populate it correctly up to a point, but there is a max limit on the table which could become an issue. but, thats a non issue when scaling.
Its to prevent the electronic throttle from getting into a runaway situation. So disable it to be able to tune it. Tune it by logging a WOT run and seeing what the max airflow is at the different engine RPMs and putting that number in the max airflow vs: rpm table. Then att ~20% to each number. There isn't a good way to tune the delta tables, rule of thumb is to add 50% to each table.
Bill Winters
Former owner/builder/tuner of the FarmVette
Out of the LSx tuning game
What would I do without you guys? Im just a noob at this stuff. Heres what I came up with so far..and it seems to be working out okay. I used some of your numbers 5L. Anything in my tune that I missed or should change? Im slowly learning...
2018 Infiniti Q60s
2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138
I would use my numbers for airflow and MAP delta. Can't tell anything from your log with regard to the max airflow VS RPM table because you're not logging any airflow PIDs. Add VE Airflow (since you're SD). While you're at it you can remove the fuel trim cell PID as you're in open loop. Also change the AFR commanded hi res PID to the low res PID. It uses less bytes and there is no disadvantage to it. Lastly you should be logging ETC position rather than TPS.
Bill Winters
Former owner/builder/tuner of the FarmVette
Out of the LSx tuning game
With the 1bar and factory MAP in there engine off key on the map reads 103 so I changed the offset on this one till it read 103 as well. Im using the DPE custom 2.5 bar map sensor as well. And im logging both TPS and ECT.
2018 Infiniti Q60s
2004 350z/LS2: ERL 434ci, 11.8:1,TFS245cc,262/266@113+3,Fast102,NX 102 plate,60#injectors/return w/twin 255s
Old setup: CNC'd317s, Fast 102, 228/228@114, PT88,83#injectors/full return system. 10.84@138
Not sure what you're getting at RE the MAP. I'm not talking about the MAP sensor calibration I'm talking about engine diag/general/P0068 airflow delta and MAP delta tables.
I said ETC (electronic throttle control <or similar acronym>), not ECT (engine coolant temp). On fly by wire cars you should log ETC position rather than TPS position. If you log both you'll see they are not the same.
Trying to help you clean up your config because you're logging stuff you dont need (fuel trims when tuning in open loop) and you're not logging things that you need (VE airflow in and SD tune).
Bill Winters
Former owner/builder/tuner of the FarmVette
Out of the LSx tuning game
Just disable those tests I have never had an issue at all in doing so
I am having same problem with my turbo silverado. Setting DTC p0068. What table is it exacty I need to adjust that controls that code info
Bill Winters
Former owner/builder/tuner of the FarmVette
Out of the LSx tuning game
Got it thanks. Just looked right over it. Couldn't see the forest for the trees. Haha
Thanks for this post. You just saved me a TON of time. Thanks!
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