AEM Porsche 20072009 9971 Turbo 20052008 Carrera 303905 User Manual

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F uel T unin g
F uel  tu nin g w it h  M AF s ensors  u ses th e tw o 3 0-c ell  2 D  ta ble s b elo w  c alle d  M AF1_C al  [g m s/s ]  a nd
 M AF2_C al  [g m s/s ] .  W hen tw o M AF s ensors  a re  e nable d, th ese ta ble s a re  a dded to geth er to
d ete rm in e fu el  re quir e m ents .  T he V E ta ble  is  n ot u sed w hen M AF is  e nable d.  T he fa cto ry  U EG O
s ensors  a re  s upporte d a nd th e...

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T unin g Ig nit io n T im in g
U nle ss u sers  a re  u sin g a n e xte rn al  (n on fa cto ry ) M AP s ensor p lu m bed in to  th e in ta ke m anifo ld ,  it  is
r e com mended th at u sers  d o n ot u se  M AP [k P a]  a s a n e ngin e lo ad in put in to  th e Ig nit io n ta ble .  T his  is
b ecause th e O EM  P ors che b oost p re ssure  s ensor is  lo cate d b efo re  th e th ro ttle  b la de a nd w ill  n ot
r e gis te r m anifo ld  v...

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M AF F ilt e r
T unin g th e M AF filt e r p ro perly  p la ys a n im porta nt ro le  fo r la rg e tra nsie nt th ro ttle  c hanges.  If  th ro ttle  a ngle
i s  q uic kly  in cre ased to  w id e o pen fr o m  a  lo w  th ro ttle  a ngle , h ig h m anifo ld  v a cuum  c ondit io n, a ir  m ass fills
t h e in ta ke m anifo ld  (n early  e qualiz in g p re ssure  to  a tm ospheric ) a t a  q uic ker ra te  th an is...

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DRIV E -B Y-W IR E T H R O TTLE  C O NTR O L
T he P ors che 9 97.1  u ses a  s in gle  th ro ttle  b ody c ontro lle d v ia  d riv e -b y-w ir e
( D BW ). It  is  im porta nt to  n ote  th at th ro ttle  c ontro l  is  a  c rit ic al  s yste m  w hic h
n eeds to  b e c orre ct. T he b asic  te rm s o f  d riv e -b y-w ir e  a re  a s fo llo w s: th e
‘ g as p edal’  in sid e th e p assenger c abin  is  c alle d th e A ccele ra to r P edal
(...

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T he 1 D  M odeS ele ct_ D BW  ta ble  is  u sed to  s w it c h b etw een th e tw o d iffe re nt D BW _Thro ttle C urv e  ta ble s,
d ependin g o n th e s ta tu s o f  th e C AN_S PO RTB UTTO N s ig nal.  T he C AN_S PO RTB UTTO N to ggle s
b etw een 0  a nd 1  (2  a nd 3  a re  n ot u sed) w hen d epre ssin g th e S PO RT b utto n. S ta te s 0  a nd 1  a re  m apped
t o  th e D BW _Thro ttle C urv e 1 a nd D BW...

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T here  a re  a  fe w  in te gra te d D BW  fa il  s afe s in corp ora te d in to  th e In fin it y  s yste m . T he E CU c onsta ntly
m onit o rs  th e a ccele ra to r p edal  s ensor v o lt a ge a nd th ro ttle  p osit io n s ensor v o lt a ges to  e nsure  th e s ig nals
a re  n ot e xcessiv e ly  h ig h o r lo w  d ue to  d am aged s ensors , s hort c ir c uit s , o r b ro ken w ir e s. T he E CU a ls o
p erfo rm s s elf- d ia gnostic s...

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CRUIS E C O NTR O L
C urre ntly , a  c ru is e c ontro l  fe atu re  is  n ot s upporte d w it h  th e
A EM  In fin it y . H ow eve r, th e m ult i- fu nctio nal  s te erin g w heel
b utto ns a re  tra nsm it te d o ve r th e P ors che C AN b us a nd a re
a va ila ble  fo r m is cella neous p urp oses d escrib ed b elo w . T here
a re  5  b utto ns: E nable , C ancel,  S et, A ccele ra te + , a nd
D ecele ra te -...

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A ccel/D ecel B utto ns
T he s te erin g w heel’s  A ccele ra te +  a nd D ecele ra te - (p ull  to w ard s, p ush a w ay) m om enta ry  b utto ns
i n cre m ent a nd d ecre m ent th e m ap s w it c hin g fu nctio n “C C_M odeS wit c h”. T his  fe atu re  is  e xtre m ely
f le xib le  a s it  c an b e u sed to  s w it c h V E ta ble s, ig nit io n m aps, la m bda ta rg ets , a nd b oost le ve ls . 
N ote s:
W hen th e A ccele ra te +  o r D...

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W it h  th e A EM  In fin it y , tra ctio n c ontro l  a nd th e re v lim it e r c an b e c ontro lle d u sin g a ny c om bin atio n o f
D BW , fu el  c ut, ig nit io n c ut, o r ig nit io n re ta rd .
I n  o rd er to  u se th is  fe atu re , c are  m ust b e ta ken in to  a ccount w hen s ettin g u p th e ta ble s a nd tu nin g. E nte r
t h e n um ber o f  th e ta ble  in to  th e c orre spondin g m ode s ele...

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CAN B US
T he A EM  In fin it y  E M S fo r th e P ors che 9 97.1  s upports  th e m ajo rit y  o f  th e C AN fe atu re s in clu din g:
T achom ete r, O il  T em pera tu re  G auge, O il  P re ssure  G auge, C oola nt T em pera tu re  G auge, A /C  R equest
B utto n, S port B utto n, S te erin g A ngle , S te erin g R ate , B oost P re ssure , C oola nt F an C ontro l,  W heel
S peed S ensors , O il  P re ssure  W arn in g, R educed E ngin...