Fuel system HONDA CR-V 1999 RD1-RD3 / 1.G User Guide

System Description
Electrical Connections -'97 Model (cont'dl
No.2 FUEL IIUECIOF
cl09
11-18
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System Description
Electrical Connections -'98 - 00 Models
POSll|O|lS TCltovEi-odYE
OAT'OEalsErELY"
(D EAGK uP (RADlo) (75A).
@ HoB sroP (rsAr
O BATTERY (tood'(D rci (4oa)'
O Fl E/trl (lsA)r(O No. 13 FUEL PUmP (l5A)
O No. 2s HETER O.5a)(D No. 15 AITERNATOB SP SENSoR (7.5A)'
@ r.ro. 3l STAnTER stcNAL (7.5A)t: in tha und!..hood fule/irl.y box
lo ^/c clwclr hEL Ylo iADIAIOR FAl{ iEt Y,coittct{3€F F l{ FCLAYYo |/C all'lc8
att
tr
*1: A/T'2: USA*3: '98 modol*il: '!X) - 00 model!
: lg ilT t(11 BATTERY ffi t./ ro3Ecl,|{rF STAFIEFI q,t REL Y
FUEL IUECIONA
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System Description
Electrical Connections -'98 - 00 Models (cont'dl
PGU.FIMAII{ BEIAY
cssr
cs6-2 ,z-_\-YEL/GBN-
-f p \-BLx-- l ./| - "---.,
_L FUEL PUI{P
11-34
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cl.t7
r-r=-lr 2l
c 6
eFr11 2l
cl15
lr,rlA
w
Ft RE!'wr --l
ft'-cRN/sLK, lll
cl11
tl 2l
I3l.l
f,_rr'Hr-lwHr'-------
T!-Isrf,-*--/r*".er* l-;-- BLi'uF I]]l
c129
.__1-..']..-r11 2 3l
ffl.E*--------lO stx,YEL ITtlBru/"Nr----
c354.'
'-{-l-r
fd,sLK rHr-----lt-rlBL( I1 9 cFNnEo I
c35l
l4;i;1_s;:a
riiiltTf,n
*2: USA
Different wires with the same color have been given a number suffix to distinguish them {for example, YEUBLKl
and YEUBLK, are not the same).
O: Related to Fuel and Emissions System.- Connector with male terminals (double outline): View from terminal side- Connector with female terminals (single outline): View from wire side
NOTE: o
(cont'd)
11-37
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frfr
ct10
fr
I6rc;iEiF--lIltIYEr, - ll
ctt5
fr
ffi
\,v
tdTiaotfi-----lIETcRll,aLX' ---l
t'ltl
[.1.1
lSlwHr -------
lo GnNAUC ITdTBLx/YEL -fdBtx vNP -----1
ct19
fr
l6lcnN' -'l
lo eLU' ,
L4.lrl
ldTcRN/BrF-----lO iEo/BL( |tsTYE'J€rr -1
G361
fr
lSTLr GRr/wHr---F ]ilwH-----
f'Ttfrl
tdFLxr-----lI O BL|^EL Il6l6tu/rJHr' -
c354*'
r'ft]
16T816rr-----llol "." IlO GF&aEp I
NOTE; . Different wires with the same color have been given a number suffix to distinguish them (for example, YEUBLK1
and YEUBLK, are not the s8me).
. O: Related to Fuel and Emissions System.
. - Connector with male terminals (double outline); View from terminal side- Connector with female terminals (single outlinel: View from wire side
(cont'dl
SLKILrsLU TcRY T
11-47
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c118
ffi
cl17
ffi
c116
ft
15
ffi
c114
A,g
rdTnEDlllHr------l6lcRN/Buc -
c121
ffi
cl11
ffir
lilrl
t-lwHn-----tI ' IGRNtsLI' If"l".*,. 1l
trhlx,l/vH? ----Effi-ffiffi ffi
c135Gt51Gt52
Different wires with the same color have been given a number suffix to distinguish them (for example, YEUBLK1
and YEUBLK, are not the same).
O: Relatsd to Fuel and Emissions System,- Connector with male terminals {double outline): View from terminal side- Connector with female terminals (single outline): View from wire side
(cont'd)
c129
f'ftf
t6-tBrK -----_l
l€ lBrxrEr IlShLU^,/Nrr l]l
ElzTt)
IiTY€vnED-----lTdTcFN/rHr, -FfREp/cFr l
Gt54.'
-El-l1l2 3l
ldTBLxr'rtvii------TitlBL. lI o cFN/Frp l
*2: USA
NOTE: o
a
a
'1)
11-51
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c4r2
ll,Vt'll
6fswYv-ii----E-r- --
F lwir,€L( -l
lwlrhot|t crub. 6.trroll
-ftr
w
rdT6iffi---l
ET-----l.T-- ---l
a
a
I'X.l
l'l.l
l-i'f iifiN -----l
ftTGRY ----
fdlGiffilfdlw{rcftr 1
r'TfifiI
TdliL,,rw{r-----l@ cRM /Hr' IlO wt{r €D' ITofuLr/,txl- ---l
NOTE: oDifferent wires with the same color have been given a number suffix to distinguish them (for example,
YEVBLK1 and YEUBLK'are not the same).
O: Related to Fuel and Emissions System.- Connector with male terminals (double outline): View from terminal side
- Connector with female terminals (single outline): View from wire side(cont'd)
1 1-55
n
o
!E!E!t
LT GRN
3a
I9rolrr/l/lt l/r.l,/za
2aa
/tetol.//llEl1.lt6r.l /tl
tHrBLt l
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rE0
c508
*4:'99 -00 models
NOTE: . Different wires with the same color have been given a number suffix to distinguish them (for example,
YEUBLKT and YEUBLK' are not the samol.
O: Related to Fuel and Emissions System
- Connector with male terminals {double outline): View from terminal side
- Connector with female terminals {single outline); View from wire side(cont'd)
c546
a.a
\:9
rdTYEcii------ETGRN/Brxi lll
fSliaGFNr- - lll
c580
r,'ffijt
vl5l6l
1-t""' -----l
lo lLrcRN, II O IsLKM/Hrlrl II t lYErr€LU IT-ilcirrlLrr l]l
c552
trLtzl
|.-l.T'|
ffircrBr. l--l
I a lYEUcnN IftTYEL'BrK - t
c760
mJv
l.f.T'-]
F6EFN-----t2l I
ftTYEUsr. ''l
TstYEr - t
c76t*.
,-+,,lrl2l3l1l
ftTcll-lIO IBLK IftTwHr/BL(---'1f.ft1. -
a
23a6E910
1l1213151611181920
|l!.,
YEL
11-57
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Troubleshooting
Troubleshooting Procedures (cont'dl
Symptom Chart
Listed below are symptoms and probable causes for problems that DO NOT cause the Malfunction Indicator Lamp (MlL) tocome on. lf the MIL was reported on, go to page 11-60.Troubleshoot each probable cause in the order listed (from left to right) until the symptom is eliminated,The probable cause and troubleshooting page reference can be found below.
Other Probable Causes for an engine that will not start:- Compression- Intake air leakage- Engine locked up- Timing belt- Starting system- Overheating- Battery
SYMPTOMPROBABLE CAUSE
Engine will not sta rt4, 2,3,5,20, 't5, 1
Hard starting2, 4, 12,17, 14, 't9
Cold fast idle too low7, a,9, 6, 17
Cold fast idle too high7,8,9,11,10
ldle speed fluctuates9,7,8, 't1, 10
Misfire or rough runningTroubleshoot for misfire on pages '11-126, 1|21LOl/\/ power2, 10,11, 13, '17, 18,20
Engine stalls2, 4, 12,1,20,9,5, 't6
Probable Cause List (For the DTC Ch8rt, see page ll-75.)
Probable CausePageSystem
Engine controt ruoaute (ecvtffi'I11-42
I 1-178Fuel oressure
PGM-Fl main relav
lgnition system
Crankshatt Position/Top Dead Center/Cylinder position sensor circuit
Intake Air Temperature (lAT) sensor ctrculr
ldle Air Control (lAC) Vatve
Fast idle thermo valve
ldle speed adjustment
Throttle body
Throftle cable
Manifold Absolute P."""rr"ffi
Throftle Position (TP) sensor
Barometric pressur" (gnno-
Ay'T gear position signal
Brake switch signal
Air Cleaner
Three Way Catalytic Converter (TWC)
Evaporative emission (EVAP) control
Contaminated fuel
1 1- 187
Section 4
5't1-'t31,146
6I 't-95
711-152
81'l-168
1 1- 169
1011-196'1111-'194
12'1 'l -90
1 1- 103
1411-137
15Section 14
161 1- 166
17r 1-194
181 1,199'1911-203
20
11-64
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Troubleshooting
Troubleshooting Procedures (cont'd)
DataDescliptionOperating ValueFreezo Data
HO2S
Feedback
Loop Status
Loop status is indicated as "open" or "closed".
Closed: Based on the HO2S output, the ECM/pCM deter-mines the airlfuel ratio and controls the amount ofinjected fuel.
Open: ignoring HO2S output, the ECM/pCiM refers to sig,nals from the TP, MAP, and ECT sensors to control theamount of injected fuel.
At idle speed: closed
YES
Short Term
Fuel Trim
The airlfuel ratio correction coefficient for correcting theamount of injected fuel when HO2S feedback is in theclosed loop status. When the signal from the HO2S isweak, short term fuel trim gets higher, and the ECM/PCMincreases the amount of injected fuel. The airlfuel ratiogradually gets richer, causing a higher HO2S output.Consequently. the short term fuel trim is lowered. andthe ECM/PCM reduces the amount of injected fuel.This cycle keeps the airfuel ratio close to the stoichio-metric ratio when in closed looD status.
t:20y"
YES
Long Term
Fuel Trim
Long term fuel trim is computed from shon term fueltrim and indicates changes occuring in the fuel supplysystem over a long period.
lf long term fuel trim is higher than 1,00. the amount ofinjected fuel must be increased. lf it is lower than L00.the amount of injected fuel must be reduced.
! 20%
Intake Air
Temperature
(IAT)
The IAT sensor converts intake air temperature into volt-age and signals the ECrU/PCM. When intake air tempera-ture is low, the internal resistance of the sensorincreases, and the voltage signal is higher.
With cold engine:
Same as ambient temper-
ature and ECTYES
Throttle
Position
Based on the accelerator pedal position, the openingangle of the throttle valve is indicateo.At idle speed:
approx. 10%
lgnition
Timing
lgnition timing is the ignition advance angle set by theECM/PCM. The ECM/PCM matches ignition timing to thedriving conditions.
At idle speed: 16'1 4.
BTDC with the SCS ser-
vtce connector connected.
NO
Calculated
Load Value(cLV)
CLV is the engine load calculated from the MAp data.At idle speed:
2A - 410/o
At 2,500 rpm with no load:
13 - 260/o
YES
_
1 1_66
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