My 2001 Hyundai Sonata will not start after I put gas in the tank. I got the O2 sensors and Mass Air replaced. The chassis trembles slightly at high speeds. The car pulls back slightly after you compress the gas for a moment. And I smell a burning smell coming from somewhere. I bought the car used, so I know nothing of its history. Is there anything I can do?
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Diagnostic Trouble Code Storage Condition Remedy P0100 Mass Air Flow Sensor Voltage High C-8 P0100 Mass Air Flow Sensor Voltage Low C-8 P0110 Intake Air Temperature Voltage High C-10 P0110 Intake Air Temperature Voltage Low C-10 P0115 Coolant Temperature Voltage High C-9 P0115 Coolant Temperature Voltage Low C-9 P0120 Throttle Position Sensor (TPS) Voltage High C-7 P0120 Throttle Position Sensor (TPS) Voltage Low C-7 P0130 O2 Sensor 1 Circuit Voltage High C-30 P0130 O2 Sensor 1 Circuit Voltage Low C-30 P0130 O2 Sensor 1 Open Circuit C-30 P0150 O2 Sensor 2 Circuit Voltage High C-31 P0150 O2 Sensor 2 Circuit Voltage Low C-31 P0150 O2 Sensor 2 Open Circuit C-31 P0201 Injector Valve 1 Voltage High C-20 P0201 Injector Valve 1 Voltage Low C-20 P0201 Injector Valve 1 Open Circuit C-20 P0202 Injector Valve 2 Voltage High C-21 P0202 Injector Valve 2 Voltage Low C-21 P0202 Injector Valve 2 Open Circuit C-21 P0203 Injector Valve 3 Voltage High C-22 P0203 Injector Valve 3 Voltage Low C-22 P0203 Injector Valve 3 Open Circuit C-22 P0204 Injector Valve 4 Voltage High C-23 P0204 Injector Valve 4 Voltage Low C-23 P0204 Injector Valve 4 Open Circuit C-23 P0205 Injector Valve 5 Voltage High C-24 P0205 Injector Valve 5 Voltage Low C-24 P0205 Injector Valve 5 Open Circuit C-24 P0206 Injector Valve 6 Voltage High C-25 P0206 Injector Valve 6 Voltage Low C-25 P0206 Injector Valve 6 Open Circuit C-25 P0230 Fuel Pump Relay Voltage High C-6 P0230 Fuel Pump Relay Voltage Low C-6 P0230 Fuel Pump Relay Open Circuit C-6 P0325 Knock Signal Circuit 1 C-26 P0330 Knock Signal Circuit 2 C-26 P0335 No Engine RPM Signal C-32 P0335 Incorrect RPM Signal C-32 P0340 Hall Sensor Voltage High C-15 P0340 Hall Sensor Voltage Low C-15 P0403 EGR Valve Voltage High C-28 P0403 EGR Valve Voltage Low C-28 P0403 EGR Valve Open Circuit C-28 P0410 Secondary Air Pump Voltage High C-27 P0410 Secondary Air Pump Voltage Low C-27 P0443 Fuel Tank Ventilation Valve Voltage High C-29 P0443 Fuel Tank Ventilation Valve Voltage Low C-29 P0443 Fuel Tank Ventilation Open Circuit C-29 P0500 Vehicle Speed Signal C-42 P0505 Idle Air Control Voltage High C-33 P0505 Idle Air Control Voltage Low C-33 P0550 Power Steering Voltage High C-14 P0550 Power Steering Voltage Low C-14 P0560 Battery Voltage High C-4 P0560 Battery Voltage Low C-4 P0602 Control Module Programming Error C-2 P1110 Intake Manifold Valve 1 Voltage High C-34 P1110 Intake Manifold Valve 1 Voltage Low C-34 P1111 Intake Manifold Valve 2 Voltage High C-35 P1111 Intake Manifold Valve 2 Voltage Low C-35 P1230 Power Supply Relay Secondary Circuit C-3 P1405 EGR Valve Feedb. Voltage High C-28 P1405 EGR Valve Feedb. Voltage Low C-28 P1405 EGR Valve Feedb. Incorrect Signal C-28 P1501 Immobiliser No or Wrong Coding C-5 P1502 Immobiliser No Signal C-5 P1503 Immobiliser Wrong Signal C-5 P1530 A/C Relay Voltage High C-41 P1530 A/C Relay Voltage Low C-41 P1600 Reprogram or Replace Electronic Control Unit (ECU) C-2 P1602 Knock Control Module; Replace ECU C-2 P1690 Check Light Voltage High C-43 P1690 Check Light Voltage Low C-43 P1690 Check Light Open Circuit C-43 P1740 Torque Control Voltage Low C-40 P1740 Continuous Torque Control C-40
The code means the O2 sensor is not heating up fast enough. It has nothing to do with the heater inside the car.
The sensor and the circuit would need to be tested to find out what the problem is. The code does not mean something needs to be replaced. Only tested.
IAT = Intake Air Temperature MAF = Mass Air Flow VAF = Volume Air Flow The first thing I would do is to check at and around the air filter and air intake tube to make sure there are no connectors unplugged. If none are unplugged you will need to take it to a qualified repair facility to have the codes diagnosed. I would recommend finding a Napa Auto Care Center as they are held to a certain standard to be a certified facility.
They sell a spray cleaner at parts stores its in a spray can with a tube How effitive it is im not sure i mean i have never seen it fix one that wasn;t working but could give it a try How ever Po171 is not the code for the mass air flow sensor its fuel trim lean bank 1 O2 sensor is reading MAF would be PO101-PO103 any of those three codes
Could be many things Mass Airflow Sensor, coil pack, O2 sensor , plugs ,wires right down to fuel filter. . It all depends on how well the car has been maintained . If you know the maintenance history of the car then you can start crossing things off one at a time till you come across something that hasn't been changed in a while like plugs for example .
There's a lot on any car that can cause loss in power. A few of them are: Mass air Flow sensor Bad O2 sensors Old oil or sludged oil Bad Gas Clogged catalytic converter Loss of cylinder pressure or compression
I would start with the cheapest tests/fixes first oil: if you haven't already and don't know the condition of your oil, change it. If your oil has sludge in it then you could have a leacking head gasket.
Next up, If your gas is bad fill the tank about half way and use lucus oil octane booster, and for a second half a tank pour in some seafoam engine cleaner. It will clean your fueling system, injectors, and pistons/chambers.
If those too don't help: get a compression test on the cylinders. Not expensive to have done, but could be expensive to fix if there is something wrong or the compression is leaking.
Next, go to a muffler shop and have your catalytic converter checked. A clogged or bad Catalytic converter may trap exhaust and keep it from exiting your exhaust system. While your there you can have your O2 sensors checked.
If all of that is fine, replace the O2 sensors and the Mass air flow sensor. These components control the air fuel ratio. If they are going out your engine won't ever get the right amounts of gas and air to run properly.
It's a lot, but my general rule of thumb for trouble shooting any issue with a car is to start with the cheapest fix and work your way up.
passenger air bag resistance high caused by loose connection at psab connector. remove connector and twist pins slightly very slightly. connector is under pass seat and is yellow.
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