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MIL sensor is on all the time the car is running fine

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Although the car seems to be running fine, the indicator light is on due to a malfunction somewhere. U need to check it out, as it could lead to other problems, system failures, and more $ to fix. You can go to most parts stores, where they will plug a scanner into a port under your dash, retrieve codes stored in the cars computer, and explain what they mean, and what action to take to fix the problem. This is a FREE service at most stores, so check it out, let me know how u make out.

Posted on Nov 14, 2008

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What does the MIL code "PO 320" mean, please?


code p0320 refers to cam shaft position (CKP) sensor/engine speed (RPM) sensor--circuit malfunction=== causes --wiring--CKP/RPM sensor ---ECM
because the engine runs ok until it is on cruise control I would be investigating the RPM sensor for a fault
The cruise control takes its control from the RPM sensor and if that circuit is interminable the the cruise control doesn't know what rpms to maintain.

Jan 29, 2015 | Cars & Trucks

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I went to scan my toyota yaris car and the following codes were give ; temperature ckt low input po117


EOBD II Error Code: P0117
Fault Location:
Engine Coolant Temperature (ECT) Sensor (G62) - Low Input
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
Coolant thermostat.
Wiring short to earth.
Engine coolant temperature (ECT) sensor.

EOBD II Error Code: P0340
Fault Location:
Camshaft Position (CMP) Sensor A (G40), Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Wiring from/to Camshaft Position Sensor (CMP) faulty.
Camshaft position (CMP) sensor faulty.
Timing misaligned.
Possible Solutions:
Check Wiring from/to Camshaft Position Sensor.
Check Camshaft Position Sensor.
Check Timing.

EOBD II Error Code: P0500
Fault Location:
Vehicle Speed Sensor (VSS) - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Non Emission Fault - No warning light.
Wiring.
Vehicle speed sensor (VSS).
Engine control module (ECM).

Dec 13, 2012 | 2001 Toyota Yaris

1 Answer

My Daughter bought a 2004 Dodge stratus It has a P0344 code but runs fine at 2000 rpm or lower above 2000rpm it bucks. Replaced cam Sensor with no success. can not get MIL light to go out. reset codes


Dodge Forum stated something about have the PCM reprogrammed may be in order after replacing/getting this code....said there was a tsb for it..NUMBER: 18-015-09

May 27, 2012 | Cars & Trucks

1 Answer

I have a '96 jeep Cherokee and I have a code po1391. I had broken the forks off the distributor for the hold down bolt so I had it welded. This is when this code appeared. According to my Haynes manual it...


Either you have the timing off or the distributor itself is worn out. If your sure the timing is on I think the next step is to replace the distributor. The bushings in the distributor can be worn out just enough to cause the little bit of variance that the cam sensor is picking up and causing the code.

Dec 08, 2010 | 1996 Jeep Cherokee Country

1 Answer

This is an add on from a previous question... 2000 Kia Sportage with 93171K on it. The check engine light is NOT on. It does put out two codes on the OBDII reader. P0443 and P1693. I had been told by the...


Trouble Code: P1693 (2.0L L4 VIN 3 Auto)
MIL CIRCUIT MALFUNCTION Print this code dataprint_icon_codes.gif Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details
Trouble Code Conditions:
KEY ON, AND THE PCM DETECTED AN UNEXPECTED VOLTAGE CONDITION ON THE TCM TO MIL CONTROL CIRCUIT DURING THE CCM TEST.
POSSIBLE CAUSES:
  • MIL CONTROL CIRCUIT IS OPEN
  • MIL CONTROL CIRCUIT IS SHORTED TO GROUND
  • MIL CONTROL CIRCUIT IS SHORTED TO SYSTEM POWER (B+)
  • MIL "BULB" IS OPEN OR MISSING
  • PCM HAS FAILED

Possible Causes: (n/a)
2000 Kia Sportage - G 2.0 DOHC - POWERTRAIN - P1693 Malfunction Indicator Lamp (MIL) Control Circuit

May 12, 2010 | 2000 Kia Sportage

1 Answer

2005 pontiac grand prix, code p0641 came on. What


DTC P0641 The powertrain control module (PCM) provides a 5-volt reference to the following sensors:

The throttle position (TP) sensor 1
The accelerator pedal position (APP) sensor 2
The engine cooling fan speed sensor
The AC pressure sensor
The fuel tank pressure (FTP) sensor
The oil pressure sensor (OPS)
The PCM monitors voltage on the 5-volt reference circuit. If the voltage is higher or lower than required, DTC P0641 will set.

Conditions for Setting the DTC
The PCM detects a voltage that is higher or lower than required on the 5-volt reference circuit. The above condition is present for 1 second. Action Taken When the DTC Sets The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.
Conditions for Clearing the MIL/DTC The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail. A current DTC, Last Test Failed, clears when the diagnostic runs and passes. A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic. Clear the MIL and the DTC with a scan tool.

Yes i can be dangerous, depending which issues mentioned above has triggered the code such as a faulty gas peddle position sensor. the code can also cause a reduced engine power to activate.

Thank you for using Fixya and best advice is to have the dealer address these issues. A tech 2 scanner would be needed to address the P0641 DTC code.

Mar 19, 2010 | 2005 Pontiac Grand Prix

1 Answer

I received a code PO176. The engine runs for about


You will have to change the flex fuel sensor on the truck sounds like its working on and off.

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2 Answers

Nissan Altima 2001


installation of thermostat

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