tayaand.blogg.se - 2003 dodge neon drive cycle

#2003 DODGE NEON DRIVE CYCLE DRIVER#
#2003 DODGE NEON DRIVE CYCLE CODE#

I was wondering if anyone on this forum could help me.Ībout 6 months ago I had headers installed on my car and of course, along came the CEL. I do know is must have an external carbon canister near the tank. No idea as to where to start checking as i am not sure if this car has a sensor in the fuel tank. 2003 Kia Rio 1.6L P0447, P0038, P0138, P0170, P0501Īmong several codes my car has, one is P0447 which is listed as EVAP emission system - vent control valve circuit open.Infinite resistance indicates an open in the heater. If you have access to resistance specifications you can use a Ohmmeter to perform a resistance test of the heater element. If so, remove the o2 sensor and inspect for damage. Verify the heater control (ground) circuit is intact.

If all appears okay, unplug the Bank 1,2 HO2S and verify that there is 12 volts B+ present with the key on engine off, (or ground is present, depending on the system). Repair wiring or replace sensor as necessary Make sure wiring is routed away from exhaust. Check for bare wires where wiring enters sensor. If there is any damage to the sensor or any damage to the wiring, fix it as needed.

Short to ground on heater control circuit (On PCM ground controlled systems)įirst, do a visual inspection of the Bank 1, 2 HO2S (heated oxygen sensor) and it's wiring harness.

Open ground circuit (12 volt PCM controlled systems).

Short to B+ (battery voltage) in the heater control circuit (12 volt PCM controlled systems).

Open in the heater control circuit (12 volt PCM controlled systems).

Faulty Bank 1,2 HO2S (Heated Oxygen sensor).

#2003 DODGE NEON DRIVE CYCLE CODE#

Potential causes of a P0038 code include:

MIL (Malfunction indicator lamp) illumination.

This code is only referring to the heating circuitry half of the Oxygen sensor. If the PCM detects an abnormally high voltage condition on the heater circuit, P0038 may set. Finding out which one you have is important because the PCM activates the heater under various circumstances.

#2003 DODGE NEON DRIVE CYCLE DRIVER#

(2) There is a fused 12 volt Battery feed (B+) that feeds 12 volts to the heater element anytime the ignition is on and the control of the heater is done by a driver in the PCM which controls the ground side of the heater circuit. (1) The PCM directly controls the voltage feed to the heater either directly or via a HO2S relay and a ground is supplied from the vehicle's common ground. The PCM also continuously monitors the heater circuits for abnormal voltages or in some cases, even abnormal amperages.ĭepending on the make of vehicle, the Oxygen sensor heater is controlled one of two ways. The oxygen sensor heater basically decreases the time needed to achieve closed loop.

While in pre-OBD II vehicles an Oxygen sensor was a one wire sensor, now they are more commonly 4 wire sensors: Two dedicated to the oxygen sensor and two dedicated to the heater element.

Integral to this sensor is a heater element.

The PCM uses the information gained from the Bank 1,2 HO2S mainly to monitor the efficiency of the catalytic converter. Heated Oxygen sensors (HO2S) are inputs used by the PCM (Powertrain Control Module) to determine oxygen content in the exhaust system. Oxygen sensors with a heating element are common on today's engines. Specific repair steps may vary depending on the model. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles, including but not limited to Toyota, VW, Ford, Dodge, Honda, Chevrolet, Hyundai, Audi, Nissan, etc. Nissan: Heated oxygen sensor (HO2S) 2 Bank 1 - heater voltage high Generic: HO2S Heater Control Circuit High (Bank 1 Sensor 2)