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LCR, remap and running lean!
- Thread starter Gubien
- Start date
Under full load conditions cars are mapped to run leaner than 14.7 to make better power.
It may be one of your sensors is forcing an adjustment to normal requested map values or the map is not good.
Carl, his car is running dangerously lean under load.
Firstly who's re-mapped it?? it sounds possibly like a mapping issue. If you bypass the 249 valve this may cause you to run lean for 0.5-1.0 sec but i wouldn't have thought this would be causing your running horribly lean problem (white plugs is a good sign of this)
first step, if you have adjustabe mapping (like revo sps) would be to put your map to standard asap before you melt pistons!!!
I dont know what level of tune they have put your motor to but for some reason (poss o2, hotwire, fuel pressure, too much boost map its self etc etc etc) your running lean take it straight to a good tuner (REVO, AMD etc) and have them look at it -- your engine depends on this!
first step, if you have adjustabe mapping (like revo sps) would be to put your map to standard asap before you melt pistons!!!
I dont know what level of tune they have put your motor to but for some reason (poss o2, hotwire, fuel pressure, too much boost map its self etc etc etc) your running lean take it straight to a good tuner (REVO, AMD etc) and have them look at it -- your engine depends on this!
It's a danish remapper, so no worries in the UK)
what are the laws about vehicle modifying around there?? i think your problems are possibly map related, 249 will only cause fault for a very short perid of time (VAG should so use wideband 02 sensors) i would find out what he hass you boosting to etc. may even be dirty injectors?
one thing is for sure you need more fuel or less air... wind turbo down or increase fuel pressue to suit this map. i would definately ring another reputable tuner and see what they think of those requested values etc.
Isnt the ignition a bit wierd?
Code:
Group A: '115 Group B: '003
RPM Load Absolute Pres, Absolute Pres, RPM Mass Flow Load Ign, Timing
TIME TIME
STAMP /min % mbar mbar STAMP /min g/s % °ATDC
576,14 1120 66,9 1010 1020 575,42 1040 8,56 7,1 24
577,53 1400 61,7 1000 1070 576,83 1240 16,28 13,3 17,3
578,73 1560 39,8 1000 1050 578,14 1480 14,72 11,4 24
579,78 1640 76,7 1630 1020 579,31 1600 11,11 8,6 30,8
580,92 1960 88 1650 1200 580,33 1800 30,14 80,4 18,8
582,17 2440 120,3 2060 1550 581,55 2160 45,64 88,6 14,3
583,28 3120 191,7 2330 2520 582,76 2760 88,47 97,3 12
584,47 4040 191,7 2550 2540 583,87 3600 131,44 100 8,3
585,69 4880 191,7 2440 2370 585,06 4480 173,14 100 14,3
586,9 5560 180,5 2220 2230 586,26 5240 189,25 100 12,8
588,23 6200 143,6 1780 2020 587,61 5920 197,14 100 10,5
589,62 5000 100 2340 1240 588,94 6440 162,72 76,9 12
590,81 5400 185,7 2270 2270 590,22 5200 187,72 100 8,3
591,92 5760 164,7 2010 2270 591,34 5600 191,86 100 9,8
593,06 6040 148,9 1770 1920 592,5 5920 170,22 51,4 13,5
594,34 6240 132,3 1720 1720 593,69 6120 153,39 51,8 20,3
595,64 6200 14,3 1010 1270 594,94 6360 165,14 99,6 19,5
596,97 5200 12,8 1010 1050 596,25 5720 11,22 9,4 6,8
598,34 4040 12 1010 1040 597,65 4640 11,25 8,2 4,5
599,67 3000 13,5 1010 1030 598,97 3520 8,5 6,7 3hmmmm... i'm not an expert on maps (i just have to pull things apart and rebuild them quick between races) I think the car should be requesting fuel dependant on mass/air, engine load, air temp etc and not the mapper suggesting fuel req'd values. does he set up on a rolling road or set up with vag com on a drive? are there no big name tuners out there?? failing that take the ecu off and send it to AMD/REVO and they'll prog it on the bench... i think your tuners a little out of his depth??
as far as i know even though my revo sps has a fuel adjustment option it will not function on the Leon as the engine ECU knows best as its constantly monitoring air/mixture all be it with pants o2 sensors (dam you again vw audi!)
as far as i know even though my revo sps has a fuel adjustment option it will not function on the Leon as the engine ECU knows best as its constantly monitoring air/mixture all be it with pants o2 sensors (dam you again vw audi!)
It's maybe pulling back because of the lean running higher up the range. Have you logged 003 and 020 (not that we should be encouraging you to drive it under load.........)
Remapper suggested lambda change, which I did, changed absolutely nothing... hurray...
Code:
Group A: '031 '115
Lambda Factor Lambda Factor RPM Load Absolute Pres, Absolute Pres,
TIME
STAMP /min % mbar mbar
475,65 0,992 1 720 20,3 1000 1000
477,57 1,023 1 880 33,1 1000 1000
479,57 0,992 1 960 30,1 1000 1000
481,28 0,977 1 1040 38,3 1000 1000
483,06 1,016 1 1160 74,4 1420 1020
484,89 0,969 0,953 1480 82,7 1540 1150
487,04 0,953 0,953 1920 97 1670 1320
489,06 0,977 0,953 2440 138,3 2090 1810
490,76 0,953 0,953 3080 180,5 2310 2320
492,48 0,938 0,953 3760 191,7 2550 2530
494,46 0,945 0,953 4520 191,7 2540 2490
496,39 0,938 0,953 5200 191,7 2280 2310
498,42 0,867 0,86 5800 172,2 1960 2050Similar threads
