By winodj_d on Nov 23, 2010 the analyze of the car gifs still a p420 error. After replacing the lambda sensors (oxy sensors) and the katalysator. on a chrysler pacifica 2005 fault has been cleared by the chrysler dealer and another shop and by disconecting the battery for 30 min. Still no luck the P0420 error remains

THE CAR NEEDS SERVICE, GET SOME?
no country of VIN told , no engine told. guess at V6 I will, 3.3L
that o2 heater is dead. or the 4wires to the oxy sensor are burned up on the exh. pipe. toss coin or better just look at it.
sensor #2 is behind the CAT. and is bad.
you posted no engine told at all, and is a 100% engine question.
S1 is always front of CAT, S2 is rear.
upstream or down stream, (S1 /S2 order)
B1 bank 1 means that bank that has cylinder #1 there.
on the 4 banger #1 is front of engine a belt drive end.
on a V6 , the #1 cylinder is most front (it's off set to bank2)
3.3L back bank row is B1. (drivers end)
so bank1 s2 is that exhaust manifold rear that goes to cat #1 and the rear of cat 1 is B1, sensor S2 rear of cat.
the heater circuit side never lies,it means the voltage or current flow to that heater is dead wrong. open/ or shorted heater or its wires to it.

the gen 3 car? 2014
engine line up is here.
Petrol:
2.0 L Theta II T-GDi I4
2.4 L Theta II MPi I4
2.4 L Theta II GDi I4
3.3 L Lambda II MPi V6
3.3 L Lambda II GDi V6
3.5 L Lambda II MPi V6
Diesel:
2.0 L R II CRDi I4
2.2 L R II CRDi I4

keep in mind my answers are USA only
and USA EPA. DICTATES CAT LAY OUT AND DESIGNS.
SOME CARS RUN Y PIPE TO A SINGLE CAT. V6
WHAT YOU HAVE THERE , IVE NOT 1 CLUE.

copy and paste

https://www.autocodes.com/p1130_toyota_rav4_2.0.html


..

redux1: 2009 2.2 L Ecotec LAP I4 (cal, fed or canada?) bingo
no country stated, and My guess did not buy the full walker front dual cat pipe or a new B1S2 sensor firs.

so no other DTC errors.??????
the p420 is the cat test but the Two Oxygen 02 sensor front and rear of the cat must be good. or p420 lies. ( the ECU likes your front B1S1 sensor but is S2 , replaced?

and no other DTC errors, like P03xx codes, of any kind.
or fueling codes.DTC.
that is correct exhaust leaks there, do cause 02 sensor to lie. as in read wrong even good ones.
use a real scan tool not some $20 code reader only


and see all chevy factory codes P1xxx , P2xxx and up.
never use cheap tools that only see P0xxx federal codes only.
they are no good.


using any real tool , check live DTC,
and stored DTC and check
all PENDING DTC
and let all MONITORS run out first, for sure all 02 tests .(all)
and do 3 driving cycles so you see them ALL..
(answers are USA spec cars, OBD2) and only real scan tools.

simple answer is bad CAT, but why not have real shop test the cat first. they have the tools , a real ASE shop, I PROMISE YOU.
one is the thermal test. (IR gun test) (ok done and looks ok)
and 2nd is 4gas tester to see if ,input gasses and output are correct at CAT>
a $3000 tool on up.

4 gas analyzer measures Carbon Monoxide (CO), Carbon Dioxide (CO2), Fuel Dependent Hydro Carbons (HC), and Oxygen (O2)<< a real shop does this to not guess what is wrong.
input and outputs checked, end to end.


2009 2.2 L Ecotec LAP I4 << told now. later. thanks !

have throttle body checked also the MDK throttle motor,
make sure that the dealer has followed service bulletin 12 07 99 for procedure to replace the MDK throttle motor
also have them check for codes,here are some codes,
it could be an expensive job,have them check everything,it is most likely the throttle motor,,throttle body is 600 if they switch it,dont let them do it without checking throttle motor,
codes,
MS41, MS42 and MS43 engine DME bmw codes...
• 1 Ignition coil Cyl 2
• 2 Ignition coil Cyl 4
• 3 Ignition coil Cyl 6
• 5 Fuel injector Cyl 2
• 6 Fuel injector Cyl 1
• 8 Air Flow Meter (HFM)
• 10 Coolant Temperature Sensor
• 11 Tank Pressure Sensor (EVAP System) or Radiator Outlet Temp (MS43)
• 12 TPS or Plausibility - Maximum Coolant Temp (MS43)
• 13 Plausibility- Radiator Outlet Temp
• 14 Intake Air Temperature Sensor
• 15 Plausibility - Cut Out Time
• 16 AirCon Compressor - PWM Signal or Plausibility Intake Air Temp (MS43)
• 17 Plausibility - Engine Coolant Temp
• 18 EWS Signal or Camshaft Sensor (MS43)
• 19 Activation VANOS Inlet Valve or Exhaust Valve (MS43)
• 20 "CHECK ENGINE" Light Failure
• 21 VANOS -Electrical Fault or Activation VANOS Inlet Valve (MS43)
• 22 Fuel Injector Cyl 3
• 23 Fuel Injector Cyl 6
• 24 Fuel Injector Cyl 4
• 25 Lambda Sensor Heater -Bank 1
• 27 Idle Control Valve - Malfunction
• 29 Ignition Coil Cyl 1
• 30 Ignition Coil Cyl 3
• 31 Ignition Coil Cyl 5
• 33 Fuel Injector Cyl 5
• 35 Aux. Air Injection System Relay
• 36 DME Main Relay
• 37 DME Main Relay : Delay
• 38 Clutch Switch -Plausibility
• 39 Brake Light Switch or Brake Light Test Switch
• 40 Brake Light Switch or Pedal Value Signal
• 42 Multi Function Steering Wheel- Plausibility
• 43 Multi Function Steering Wheel: Button
• 45 Multi Function Steering Wheel: Port
• 47 Temp Sensor -Downstream of Pre-Cat or Torque Limitation Level 1 (MS43)
• 48 DME Control Unit -Self Test 1
• 49 DME Control Unit or Torque Monitoring Level 2 (MS43)
• 50 EVAP Control Valve or Response Monitoring Level 2 (MS43)
• 51 Shut-off Valve -Charcoal Filter or Request Control Unit Reset (MS43)
• 52 Solenoid Valve -Exhaust Flap
• 53 Idle Speed Actuator
• 55 Lambda Sensor Heater -Bank 2
• 56 Ignition Current Feedback Resistor - Open Circuit
• 57 Knock sensor -Bank 1
• 58 DME Control Unit -Self Test 2
• 59 Knock Sensor -Bank 2
• 61 Lambda Sensor Heater -Bank 2 Post Cat
• 62 Aux. Air Injection System -Switching Valve
• 63 DME Control Unit or Ambient Temp Signal via CAN (MS43)
• 64 Plausibility - Ambient Temperature
• 65 Camshaft Position Sensor (Inlet MS43)
• 66 DME Control Unit
• 67 DME Control Unit
• 68 Tank Venting Valve
• 69 Fuel Pump Relay
• 70 DME Control Unit
• 71 DME Control Unit
• 72 DME Control Unit
• 74 AirCon Compressor Relay
• 75 Lambda Sensor Voltage -Bank 1
• 76 Lambda Sensor Voltage -Bank 2
• 77 Lambda Sensor Voltage -Bank 1 Post Cat
• 78 Lambda Sensor Voltage -Bank 2 Post Cat
• 79 Lambda Sensor Heater -Bank 1 Post Cat
• 80 ABS/ASC interface
• 81 MSR Signal -Active too Long
• 82 ABS/ASC Interface -Advance Adjustment
• 83 Crankshaft Sensor
• 90 Exhaust Temperature Pre Cat Conv - Bank 1
• 91 Exhaust Temperature Pre Cat Conv - Bank 2
• 92 Exhaust Temperature Post Cat Conv -Bank 1
• 93 Exhaust Temperature Post Cat Conv -Bank 2
• 94 Auxiliary Air -Air Mass Flow Sensor
• 95 Auxiliary Air Valve or Auxiliary Air Hose Blocked
• 96 Auxiliary Air Pump - Function
• 97 Auxiliary Air -Flow Rate too Low
• 98 Auxiliary Air -Flow Rate too High
• 99 Auxiliary Air Valve Jammed Open
• 100 DME Control Unit -Self-Test Failed
• 103 VANOS Error -Inlet Camshaft
• 104 VANOS Error -Exhaust Camshaft
• 105 VANOS Error -Position Inlet Camshaft
• 106 VANOS Error -Position Exhaust Camshaft
• 109 Throttle Valve Plausibility
• 110 Pedal Sensor Value Potentiometer 1
• 111 Pedal Sensor Value Potentiometer 2
• 112 TPS Potentiometer 1
• 113 TPS Potentiometer 2
• 114 Throttle Valve Final Stage
• 115 Reference Voltage -Voltage Regulator 1 or Throttle Pedal Adaptation (MS43)
• 116 Reference Voltage -Voltage Regulator 2
• 117 Plausibility -Pedal Position Sensor 1/2
• 118 Plausibility -TPS 1/2 or TPS1/Airflow Plausibility (MS43)
• 119 Throttle Valve Sensor -Mechanical Error or TPS2/Airflow Plausibility (MS43)
• 120 Plausibility Pedal Sensor or TPS
• 122 Engine Oil Temperature
• 123 Map Cooling Thermostat Control
• 124 Activation DISA Solenoid
• 125 Activation Electric Fan
• 126 Activation Tank Leak Pump Solenoid
• 127 Activation Pump Solenoid
• 128 DME/EWS Communication
• 129 CAN Signal SMG 1
• 130 CAN Signal ASC -Timeout
• 131 CAN Signal Instrument Cluster -Timeout
• 132 CAN Signal Instrument Cluster -Timeout
• 133 CAN Signal ASC -Timeout
• 134 SMG Intervention -Plausibility
• 135 Throttle Valve Re-Adaptation Required
• 136 Throttle Valve -Spring Test and Limp-home Position Failed
• 137 CAN Signal -Steering Angle Sensor
• 139 CAN Signal -Tank Level Sensor
• 140 Tank Leak Pump Solenoid - Reed Switch Open or Output Stage (MS43)
• 141 Tank Leak Pump Solenoid - Reed Switch Stuck Closed or Tank Level Sensor (MS43)
• 142 Tank Leak Pump Solenoid - Reed Switch Stuck Open or DMTL Module (MS43)
• 143 Tank Ventilation or Tank Leakage (MS43)
• 144 Fuel System - Large Leak Recognised
• 145 Fuel System - Small Leak Recognised
• 146 EVAP System Leak Detected (Small Leak) or Pedal Sensor Supply Voltage Pot 1 (MS43)
• 147 Pedal Position Sensor Potentiometer Supply Channel 1 (Pot 2 MS43)
• 149 Air Flow Sensor or Pedal Value Sensor Mismatch
• 150 Lambda Post Cat Bank 1 Max Limit
• 151 Lambda Post Cat Bank 2 Max Limit
• 152 Lambda Post Cat Bank 1 Min Limit
• 153 Lambda Pre Cat Bank 2 Max Limit
• 154 Lambda Pre Cat Bank 2 Min Limit
• 155 Lambda Pre Cat Bank 2 No Signal
• 156 Lambda Pre Cat Bank 1 No Signal
• 157 Lambda Post Cat Bank 1 Min Limit
• 159 Lambda Post Cat Bank 2 Max Limit
• 160 Lambda Post Cat Bank 2 (MS41) or Throttle Valve Stuck
• 161 Throttle Valve - Stuck
• 162 Throttle Valve -Control Deviation
• 168 Pedal Position Sensor Pot Supply 1 or MAP Cooling Thermostat Jammed (MS43)
• 169 Throttle Valve Output Stage Cut off after Fault
• 170 DME Control Unit -Self Test Failed
• 171 Plausibility - Throttle Valve
• 172 Pedal Sensor Potentiometer 1/2 Short Circuit
• 173 TPS Potentiometer 1/2 Short Circuit
• 174 Throttle Valve Potentiometer 1/2 Adaptation
• 175 Pedal Sensor 1 Adaptation
• 176 Pedal Sensor 2 Adaptation
• 186 Voltage Post Cat Bank 1
• 187 Voltage Post Cat Bank 2
• 188 Voltage Pre Cat Bank 1
• 189 Voltage Pre Cat Bank 2
• 190 EVAP -Reed Switch Open or Voltage Post Cat Bank 1 (MS43)
• 191 EVAP -Reed Switch Closed or Voltage Post Cat Bank 2 (MS43)
• 192 EVAP -Reed Switch Open
• 193 EVAP -Check Hoses
• 194 EVAP -Large Leak Detected
• 195 EVAP -Small Leak Detected
• 196 EVAP -Electrical Valve from LDP Pump or Barometric Pressure Sensor (MS43)
• 197 EVAP -Barometric Pressure Sensor
• 198 Cat Efficiency during Start -Bank 1
• 199 Cat Efficiency during Start -Bank 2
• 200 Lambda Regulation Bank 1 Pre Cat
• 201 Lambda Regulation Bank 2 Pre Cat
• 202 Lambda Regulation Bank 1 Post Cat
• 203 Lambda Regulation Bank 2 Post cat
• 204 Idle Control System -Idle speed not plausible
• 208 EWS -RPM Signal Error
• 209 EWS -Message Error
• 210 Ignition Feedback Resistor (ZSR)
• 211 Idle Speed Actuator -Mechanical
• 212 VANOS Bank 1 -Mechanical
• 214 Vehicle Speed Signal (VSS)
• 215 Lambda Sensor Bank 1 or ASC/MSR/EML -Interface not plausible
• 216 Lambda Sensor Bank 2 or EGS Position Signal
• 217 CAN bus error -EGS Signal not present
• 218 CAN module -Warning
• 219 CAN module -CAN Offline
• 220 Lambda Voltage Range Bank 1 Sensor 1
• 221 Lambda Voltage Range Bank 2 Sensor 1
• 222 Low Coolant Temperature or Lambda Sensor Control (MS43)
• 223 Lambda Sensor Switching Bank 1 Sensor 2
• 224 Lambda Sensor Switching Bank 2 Sensor 2
• 225 Cat Efficiency Bank 1
• 226 Cat Efficiency Bank 2
• 227 Mixture Deviation Bank 1
• 228 Mixture Deviation Bank 2
• 229 Lambda Sensor Switching Bank 1
• 230 Lambda Sensor Switching Bank 2
• 231 Lambda Sensor Switching Bank 1 Pre Cat
• 232 Lambda Sensor Switching Bank 2 Pre Cat
• 233 Catalytic Converter Overall Efficiency Bank 1
• 234 Catalytic Converter Overall Efficiency Bank 2
• 235 Lambda Heater Bank 1 Post Cat or Pre Cat Signal (MS43)
• 236 Lambda Heater Bank 2 Post Cat or Pre Cat Signal (MS43)
• 238 Misfire Cyl 1
• 239 Misfire Cyl 2
• 240 Misfire Cyl 3
• 241 Misfire Cyl 4
• 242 Misfire Cyl 5
• 243 Misfire Cyl 6
• 244 Crankshaft Interval Timing
• 245 Aux Air Injection System Bank 1
• 246 Aux Air Injection System Bank 2
• 247 Aux Air Injection System -Incorrect Flow Detected
• 248 Pre Cat Converter Efficiency -Bank 1
• 249 Pre Cat Converter Efficiency -Bank 2
• 250 Tank Venting Valve -Function
• 251 Tank Ventilation Diagnosis Error
• 252 Tank Ventilation System Vacuum
• 253 Activated Charcoal Filter Shut-off Valve Stuck Shut
• 254 Tank Ventilation System -Large Air Leak
• 255 Tank Ventilation System -Valve Stuck Open

the code po153 is oxy/lambda sensor slow response. and the b i think relates to bank b that is left hand as you sit in car, there are 2 sensors on each bank. you should really have it put on suitable diagnostic equipment to monitor live data to help sort it out, it could be either sensor or the catalyst. and the parts are expensive so you should not get the diagnosis wrong. i guess you engine light is on. good luck.

Yes, the Denso Mfr #: 234-4209 O2 sensor is a universal 4 wire pre cat sensor that will work in your vehicle. Bosch also makes an exact fit sensor, #15606 for the upstream & 15607 for downstream.

have you tried clearing the fault with the reader ,if not it will still show in memory so you have cured it but the fault is still in the memory

the fault codes indicate that the lambda/oxy sensor has failed renew it its in the exhaust manifold or downpipe

hi, the oxygen sensor or lambda sensor for its proper name is located in the exhaust it will either be before or just after the catalitic converter it will have two wires going to it and its just bolted into the exhaust downpipe and the wire connects to the wiring harness near the engine itself, the sensor itself is not cheap to buy but you can replace it yourself make sure you check the exhaust for damage leading up to the sensor as any damage to the exhaust such as a whole in exhaust can cause the sensor fault you have been getting if their is no fault with the exhaust then change the sensor and this should then solve your problem.

Let me know how you get on or if you need further assistance ok

An oxygen sensor, or lambda sensor, is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed.