1998 HONDA CR-V oxygen sensor

PGM-FI System
Secondary Heated Oxygen Sensor (secondary HO2SI (sensor 2l (cont,d)
lTol3al The scan tool indicates Diagnostic Trouble Code (DTC) P0139: A slow response probtem in the Secondary Heated- Uxygen Sensor (HO2S) (Sensor 2l circuit.
- The MIL has b€en reoorted on.- DTC P0139 is storad.
Probl€m ve.itication:1. Do the ECM/PCM Reset Procedure,Start the engine. Hold theengine at 3,000 rpm with noload (in Park or neutral) untilthe radiator fan comes on.Check the Secondary HO2S(Sonsor 2) output at 3,000 rpmwith the scan tool.
lntehittont failure, 3ystem is OKat this time. Chock for poor con-nections o. loose wi.es at C127(located on ECM/PCM brack€t),C721 {Secondary HO2S, Sensor 2land at the EcM/PcM.
Does the voltage stay within0.3 - 0.6 V for two minutes?
11-120
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Heated Oxygen Sensor (HO2S| Heater
The scan tool indicatos Diagnostic Trouble Code (DTC) P0135: A problem in the Primary Heated Oxygen Sensor
{Primarv HO2S) (Sensor 1) Heater circuit.
The scan tool indicates Diagnostic Trouble Code (DTC) P0141: A problem in the Secondary Heated Oxygen Sensor
(Secondary HO2S) (Sensor 2) Heater circuit.
Fol3sl
Fo11tl
PBIMARY HO2S ls.n.or ll 4PCONNECTOR (CI 1 1 I, SECONDARYHO2S ls.n.o.2l aP CONNECTORlc721l.
Terminal side of male t€rminals
PRIMARY HO2S lson.o. 1l aPCONNECTOR {Cl 1 1 }, SECONDARYHO2S ls.nror 21 4P CONNECTORtcr21l.
so2sHTctBLK/WHn.
PO2SHTC(BLK/
WHTItGlIBLKAAIHTI'
Wire sid€ of lemale terminals
('97 model: To page '11-122)
('98 - 00 models: To page 11-'123)
*: P0141
('97 model: To page'11-122)
1'98 - 00 modelsl To page 11-123)(cont'd)
11-121
- Th6 MIL h.. bocn roponod on.- DTC P0135, and/oi mlal arestored.
Probl.m verification:1. Do the ECM/PCM Resot Pro-cedure,2. Start the engine.Int.rrnittaii frilurc, awtom ir OKat thi3 time. Chock lor poor con-n.ctiona or loosa wiro3 !t C111
lPrim.ry HO2S, Sen3o. 11. C12?llocatcd on ECM/PCM br.ck.t),C721 lsocond.ry Ho2s, s.n3or2r and at tho ECM/PCM.
Ch.ck ior an opon or shoYt in theHO2S:1. Turn the ignition switch OFF.2. Disconnoct the Ho2s (Primary
or Secondary*) (Sensor 1 orSensor 2)4P conneclor.3. At the HO2S side, measureresistance between the HO2S4P connector terminals No. 3and No.4.
ls there 10 - 40 0?
Check for continuity betweenbody ground and the HO2S 4Pconnector terminals No. 3 andNo. 4 individually.
Check tor an op6n or 3hort in thewires IPO2SHTC, SO2SHTC'linel:1. Turn the ignition swhch ON {ll).2. Moasure voltage between theHO2S 4P connector terminalsNo.3 and No.4.
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PGM-FI System
Heated Oxygen Sensor IHO2S) Heater (cont'd)
{'97 model)
(From page l1-121)
PRIMARY HO2S (S.nsor 1) ap CONNECTOR{cl111
| 112 ||.i-l
13 .l
'ot X-tErK/ (9YELI -L
Wire side of female terminals
SECONDARY HO2SISENSOR 21 4P CONNECTORlcr21l,
IGl IBLK/WHTI
Wire side ol female terminals
Wire side of female terminals
So2HTCIALK/WHTI* PO2SHTCIBLK/WHTI
Chock for en open or lhort in thewire (lG1 line):Measure voltage between theHO2S 4P connector terminal No.3 (secondary: No. 4) and bodyground,
Reprir op6n or 3hort in thc wircbetwo.n th€ No. 15 ALTERNA-TOR SP SENSOR (7.5 Al fu!. rndtho HO2S (Primary. Socond.ry*).
Ch€ck for an open in the wire(PO2SHTC, SO2SHTC. lin€):1. Turn the ignition switch OFF.2. Reconnect the HO2S 4P con-
3. Disconnect the PCM connec-tor A (32P).4. Turn the ignition switch ON (ll).5. Measure voltage betweenPCM connector t€rminals 46and A10 (A5 and A10)*.
Bepair opon in the wiro botwoonthe PcM (A6. A5lr and tho Ho2s{Prim.ry, Socond!ryr}.
ls thero 0.1 V or less?
Substitute a lnown-good PCMand recheck. lt 3ymptom/indica-tion goes away, .oplaco the origi-nal PCM.
Check fo. a ahort in the wireIPO2SHTC, SO2SHTC. lins):1. Turn the ignirion switch OFF.2. Disconnect the PCM con-nector A {32P).3. Check lor continuily betweenthe PCM connector terminal46 (A5)* and body ground.
Bopair short in the wire lrotwsentho PC{r4 {A6, A5rl and the HO2SlPiimary, S€condary.l.
Substitute a known-good PCMand .echgck. lf 3ymptom/indica-tion go€s awry. repl.cethe origi-nal PCM.
11-122
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Removal
!@@ Make sure the lifts, i8cks. and safety stands
are placed properly {see section 1}.
1. Raise the front of the vehicle, and support it with
safety stands (see section 1).
2. Set the parking brake, and block both rear wheels
securely.
3. Drain the manual transmission fluid Reinstall the
drain plug with a new sealing washer.
4. Disconnect the heated oxygen sensor (HO2S) con-
nector.
SELF.L(rcKNGNUTReplace.
SELF-LOCKI'{GNUTReplac€.
5. Remove exhaust oipe A.
6. Make reference marks across the propeller shaft
and the transfer assembly flanges'
Separate the propeller shaft from the transfer
assembly flanges,
Remove the rear stiffener, then remove the transfer
assembly.
NOTE: While servicing the transfer assembly, do
not allow dust or other foreign particles to enter the
transmission.
7.
REFEREI{CE i'ARKS
Replace.
Replace.
13-5
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Transfer Assembly
lnstallation
1. Install a new O-ring on the transfer assembly.
8 x 1.25 mm24 N.m (2.4 kgt m,17 rbt.ftl
10 x 1.25 mm44 N.m (4.5 kgJ.m,
2.
DOWEL PIN
Replace.TRANSFEBASSEMBLY
Clean the areas where the transfer assembly con
tacts the transmission with solvent or carburetor
cleaner, and dry with compressed air. Then apply
MTF to the contact areas.
Installthe transfer assembly on the transmission.
NOTE: While installing the transfer assembly on
the transmission, do not allow dust or other foreign
particles to enter the transmission.
lnstall the rear stiffener.
Install the propeller shaft to the transfer assembly
by aligning the reference marks,
8 x1.25 mm32 N.m 13.3 kg{.m,24 tbf.ftl
REFERENCE MARKS
6. Install the exhaust pipe A,
GASKETEXHAUST PIPE A
HO2S CONNECTOR
10 x 1 .25 mm54 N.m (5.5 kgt m,40 tbtfttReplace.
SELF.LOCKING
NUT8 x 1.25 mm16 N.m {1.6 kgf.m,12 tbt.ft)Replace.8 x 1.25 mmzzN.m l2.2kg!-m,16 rbf.trtReplace.
7.Connect the heated oxygen sensor (HO2S) connector.
Relill the transmission with MTF (see page 13-3).
Start the engine, and run it to normal operating tem-
perature (the radiator tan comes on). Turn the
engine off. and check fluid level.
8.
9.
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12. Disconnect the heated oxygen sensor (HO2S) con-
nector, then remove the exhaust pipe A.
GASKETReplace.
HO2S CONNECTOR
NUTReplace.
EXHAUST
SELF.LOCKINGReplace.
GASKETReplace.
Mark reference marks on the joint of the transfer
and the propeller shaft.
8 x 1.25 mmReplace.
Separate the propeller shaft from the transfer
assemDly.
REFERENCE MABKS
14.
15. Remove the cotter pins, and castle nuts. then sepa-
rate the ball ioints from the lower arm (see sectlon
18).
OAMPER PINCH BOLT
CASTLE NUTNUTReplace.
17.
16.
DAMPER FORKFOFKEOLTReplace.
Remove the right damper tork bolt, then separate
right damper fork and damPer.
Pry the right driveshaft out of the differential, and
pry the left driveshaft out of the intermediate shaft
(see section 18).
Pull out the inboard ioint, and remove the right and
left driveshaft (see section 18).
Tie plastic bags over the driveshatt ends. Coat all
precision finished surfaces with clean engine oil
18.
19.
\
{cont'd}
13-9
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Transmission Assembly
Installation (cont'dl
13. Installthe balljoints onto the lower arms.
DAMPER PINCH BOLT10 x 1.25 mm43 N.m {a.a kgf.m,32 rbfft)
SELF.LOCKING NUT'12 x 1.25 |nm6il N'm 16.5 kgtin, 47 lbtftlReolace.
Replace.
14.
PROPELI"ER SHAFT
13-74
12 x 1.25 mm,19 - 59 N.m(5.0 - 6.0 kgi.m, 36 - € lbfttl
Install the right damper fork bolt.
Install the propeller shaft to the transfer assembly
by aligning the reference marks.
E x 1.25 mr'|
15.
REFERENCE MARKS
32 N.m 13.3 kst m, 2a lbf.ftl
TRANSFER
Install the exhaust pipe A, then connect the heated
oxygen sensor (HO2S) connector.
GASKETSReplace.
HO2S CONNECTOR
10 x 1.25 mm5,1N.m 15.5 kgtm.() tbt filReplace.
SELF.LOCKING
SELF.LOCKING NUT8 x 1.25 mm16 N.rn 11.6 kg{.m,12lbtfr)Replace.
GASKETReplace.
8 x 1.25 rr|ln22 N.m (2.2 tgf.m, 16 lbl.ftlReplac6.
'17. Installthe guard bar and the splash shield.
SPLASH SHIEI.I)I x 1.25 mm24 N.m l2.a kgf.m.17 tbtft)GUARD BAR
6x1.0mm9.8 N.m (1.0 kgf.m, 7.2 lbf.ft)
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Transfer Assembly
Removal
@ Make sure the lifts, iacks, and safety
stands are placed properly (see section 11.
1. Raise the front of the vehicle, and make sure it is
supported securely.
2. Set the parking brake, and block both rear wheels
securelv.
3 Drain the automatic transmission fluid (ATF).
Reinstall the drain plug with a new sealing washer'
DRAIN PLUG'18 x'1.5 rnm49 N.m 15.0 kgf.m, 36 lbl.ftl
4. Remove the guard bar and the splash shield.
GUARD 8AR
14-165
5.Disconnect the primary heated oxygen sensor
{Primary HO2S) connector.
Remove exhaust pipe A.
SELF-LOCKINGNUTBeplace.
7.
SEI-F.LOCKINGNUTReplace.
NUTReplace
Remove the shift cable cover.
Remove the snap pin and control pin, then separate
the shift cable from the control lever. Do not bend
the shift cable excessively.
(cont'd)
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