Question about Honda Civic Coupe

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Malfunction indicator light is stuck on... what else can i check besides the fuel cap

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If the light was flashing when it came on, then it means your engine is misfiring.
A solid light can mean anything. loose gas cap (which you ruled out) to a problem with the transmission

This light comes on when the computer detects a fault of some sort in its diagnostic tests. If it keeps detecting this issue, the light will remain off. If the light turns off, then it has detected that the issue may no longer be present.

In order to find out what the exact reason was for your light, You need to have your car computer scanned to retrieve the code that the computer would have stored when the light triggered. Most garages will do this free of charge. The code will tell you what may have caused the light to initially go on

Posted on Sep 24, 2009

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1 Answer

Why would my OBD or malfunction indicator light come on and stay on?


Check engine light comes on with faulty oxygen sensor, loose gas cap or faulty gas cap. sometimes with low octane fuel as well. fill up with high octane fuel, tighten down the cap and see if it helps.

Jul 14, 2015 | Cars & Trucks

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Reasons for the check engine light coming on


Get the malfunction codes & look them up

May 03, 2014 | 1999 Toyota Corolla

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Error code 340 & 457


  • P0340 - Camshaft position sensor circuit malfunction.
  • P0457 - Evaporative emission control system leak detected (fuel filler cap loose/off)

    There is a bulletin #0398 posted on 05/12/2003 for P0457 - Malfunction indicator lamp (mil) illumination with diagnostic trouble codes p0442, p0455, p0456, p0457, p1442 or check fuel cap lamp illuminated with diagnostic trouble code p0457.

I'd suggest checking with your local dealer, as it may be a fix that is covered by the dealer.

Oct 21, 2012 | 2002 Ford Focus

1 Answer

Gas cap light and check engine light on 2001 ford taurus ses


Sorry, but there is no "sensor at the fuel cap". Therefore, there is no code that says "sensor at the fuel cap". There is, however, a Diagnostic Test Code (DTC) That indicates a possible problem with the fuel cap.
(HINT: When you want information on codes, it is usually wise to include the code number that you are getting - that way, it can be looked up, instead of GUESSING at what the problem is from a code description that some generic code reader is telling you..)
DTC P0457 is defined by SAE J2012 as "Evaporative Emission System Leak Detected (fuel cap loose/off)"

At this point, I am ASSUMING this is the code you got.

This DTC is set when the Powertrain Control Module (PCM) detects that there is an in-tank pressure drop that is more than 7in. H2O within 30 seconds directly after refueling, or there is excessive purge (fuel Vapor) flow more than .06 lbs. per minute. Possible causes are:
> Fuel filler cap not installed after refueling
> Fuel filler cap loose or cross-threaded

There are other malfunctions that can also cause this code to set, but it will be accompanied by other codes indicating other possible failures.
If there are no other Evaporative Emissions System codes present, then there is most likely a problem with the way your fuel cap was put on the last time you got fuel.

Check your fuel cap and make sure it is on correctly and is tight.

Apr 18, 2012 | 2001 Ford Taurus

1 Answer

Have a 2006 Hyundai Santa Fe LTD/4WD and hit a big pot hole and then the check engine light came on. took it to autozone and read two error code the EVAP malfunction and some kind sensor misalignment but...


The most common causes for error code P0442 (EVAP small leak detected) are listed below:

? Fuel filler cap damage or missing

? Faulty or damaged fuel filler pipe

? Leaking, disconnected or plugged fuel vapor lines.

? Fuel in lines due to faulty Rollover Valve

? On-Board Refueling Vapor Recovery Valve (ORVR valve) or stuck closed CCV.

? Improperly installed or stuck Purge Control Solenoid Valve (PCSV).

? Faulty Fuel Tank Pressure Sensor (FTPS).

? Leaking canister

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1 Answer

Malfunction Indicator light stays on on my 2006 Jeep Liberty.\r\nCar runs fine but light has stayed on when operating. I have checked gas cap. How can I turn off dashboard indicator light?


Mil light is coming on because it's registering a dtc (diagnostic trouble code) may or may not be evap/fuel vapor discharge like a loose or faulty seal in your gas cap. Have codes checked at an auto parts store (for free) and they can tell you what code/codes are showing. List them here for solutions. You can also have them erase code and if mil lamp comes on again you know somethings to blame and you need to check it out.

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1 Answer

On a 2001 ford taurus what is the exclamatin point on the dash? The light comes on and goes off at times.


Hope this helps.
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Item Part Number Description 1 — Instrument cluster 2 — Odometer reset shaft 3 — Air bag warning indicator 4 — RH turn signal indicator 5 — Charging system warning indicator 6 — Tachometer 7 — Low oil pressure warning indicator 8 — Brake system warning indicator 9 — Cruise control indicator 10 — Check fuel cap indicator 11 — Anti-lock brake system (ABS) warning indicator 12 — Check transmission indicator 13 — Odometer 14 — Transmission range selector indicator 15 — Trip odometer 16 — Theft indicator 17 — Low coolant indicator (if equipped) 18 — Safety belt warning indicator 19 — Low fuel warning indicator 20 — Fuel gauge 21 — Malfunction indicator lamp (MIL) 22 — Door ajar warning indicator 23 — Traction control indicator (if equipped) 24 — Engine coolant temperature gauge 25 — High beam indicator 26 — LH turn signal indicator 27 — Speedometer

Jun 05, 2010 | 2001 Ford Taurus

1 Answer

VSC and Malfunction Indicator came on and stays on


When you say malfunction indicator , do you mean `check engine`` light.
These paired lights can indicate a change in engine air flow and fuel mixture. Try a fresh tank of premium fuel, but first a unscrew and re-screw the gas cap until it ratchets into place. The lights can be triggered by a loose gas cap, a fouled O2 sensor, and several other emission related problems including sticking throttle body components, etc.
This can sometimes be sprayed with carb cleaner inserted in the snorkle area of the air intake where teh snorkle meets the metal intake.

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2 Answers

Malfunction symbol appearing


Does it look like an engine? It means you have a problem with the engine. Those vans don't have a low coolant sensor.

Aug 02, 2009 | 2007 Dodge Grand Caravan SXT Minivan

1 Answer

I have 8000 miles on my Tucson check engine light came on at start up this morning...gas cap is tight...no problems?????


there are over 200 reasons for the check engine light to come on, the gas tank cap is just one of them, this light and the problem that turned it on are most likely covered under the federal emission warranty, contact the dealer. see trouble code list below for some of the probelems that cause a check enghine light.
P1100 Map Sensor - Malfunction
P1101 Map Sensor - Abnormal
P1102 Map Sensor - Low Input
P1103 Map Sensor - High Input
P1104 Air Flow
P1105 Air Flow - Abnormal
P1106 Air Flow - Low Input
P1107 Air Flow - High Input
P1108 Fuel Pump
P1109 Fuel Pump - Abnormal
P1110 Fuel Pump - Stuck On
P1110 ETS System - Malfunction
P1111 Fuel Pump - Electrical
P1112 Manifold Differential Pressure Sensor
P1112 VGT Actuator - Malfunction
P1113 Manifold Differential Pressure Sensor - Abnormal
P1114 Manifold Differential Pressure Sensor - Low
P1115 Coolant Temperature Input - Abnormal
P1116 Boost Pressure Sensor - Malfunction
P1118 ETS Motor - Malfunction
P1119 Inlet Metering Valve Control
P1120 Electric Governor - Malfunction
P1120 Inlet Metering Valve Malfunction
P1121 APS PWM Output Circuit Malfunction
P1121 Throttle Position Input - Abnormal
P1122 Boost Pressure Control Valve
P1123 Fuel System Rich - Idle
P1123 Timer Position Sensor - Malfunction
P1124 Fuel System Lean - Idle
P1125 Fuel Press Sensor1
P1126 Fuel Press Sensor2
P1127 Fuel System Rich - Part Load
P1127 Control Sleeve Position Sensor
P1128 Fuel System Lean - Part Load
P1130 Start Solenoid- Malfunction
P1131 Injection Quantity Adjust
P1134 O2s Transition Time(B1/S1)
P1135 Injection Timing Servo
P1140 Inlet Air Temperature Sensor Malfunction
P1141 Slow Duty Solenoid- Malfunction
P1145 Main Duty Solenoid- Malfunction
P1146 Idle Co Potentiometer
P1147 Accelerator Position Sensor (ETS) Circuit
P1150 Barometric Pressure Sensor Malfunction
P1151 Accelerator Position Sensor (EMS) Circuit
P1152 Accelerator Position Circuit-Low Input
P1153 Accelerator Position Circuit-High Input
P1154 O2s Transition Time(B2/S1)
P1155 Limp Home Valve- Malfunction
P1159 Variable Induction System
P1162 High Pressure Pump & Fuel Line
P1166 O2s (B1) Control Adaptation
P1166 Limit O2s Lambda Control (B1)
P1167 O2s (B2) Control Adaptation
P1167 Limit O2s Lambda Control (B2)
P1168 O2s (B1/S2) Heater Power
P1169 O2s (B2/S2) Heater Power
P1170 ECM (Barometric Pressure Sensor)
P1171 ETS Valve Stuck - Open
P1172 ETS Improper Motor Current
P1173 ETS Target Following Malfunction
P1174 ETS Valve Stuck - Close #1
P1175 ETS Valve Stuck - Close #2
P1176 ETS Motor Open/Short #1
P1177 ETS Motor Open/Short #2
P1178 ETS Motor Power - Open
P1179 ETS Position F/B-Mismatch
P1180 O2 S1 Heater Circuit- Malfunction
P1180 Fuel Pressure Regulator - Malfunction
P1181 Fuel Pressure Monitoring
P1182 O2 S2 Heater Circuit - Malfunction
P1182 Fuel Pressure Regulator - Short
P1183 Fuel Pressure Regulator - Open
P1184 O2s No Activity (B1/S2)
P1184 Fuel Pressure Regulator - Power
P1185 Fuel Position - Excessive
P1186 Fuel Pressure - Too Low
P1187 Regulator Valve - Stuck
P1188 Fuel Pressure - Leakage
P1189 Governor Deviation
P1190 Intake Throttle Actuator
P1191 ETS Limp Home Valve On
P1192 Limp home - Target Follow Malfunction
P1193 ETS Limp Home - Low Rpm
P1194 Limp Home - TPS2 Position Malfunction
P1195 Limp Home - Target Follow Delay
P1196 ETS Limp Home - Close Stuck
P1300 Spark Timing Adjust Signal
P1300 Injector Specific Data Fault
P1300 Synchronization Error-CKP/CMP
P1301 TDC Sensor - Abnormal
P1302 TDC Sensor - Low Input
P1303 TDC Sensor - High Input
P1304 Phase Sensor
P1305 Phase Sensor - Abnormal
P1306 Phase Sensor - Low Input
P1307 Phase Sensor - High Input
P1307 Accelerator Sensor - Range/Performance
P1308 Ignition Coil.1
P1308 Accelerator Sensor - Low
P1308 Accelerator Sensor Circuit - Low
P1309 Ignition Coil.1 - Abnormal
P1309 Accelerator Sensor - High
P1309 Accelerator Sensor Circuit - High
P1310 Ignition Coil.1 - Low Output
P1310 Injection Control Circuit Fault
P1311 Ignition Coil.1 - High Output
P1312 Ignition Coil.2
P1313 Ignition Coil.2 - Abnormal
P1314 Ignition Coil.2 - Low Output
P1315 Ignition Coil.2 - High Output
P1316 Ignition Coil.3
P1317 Ignition Coil.3 - Abnormal
P1318 Ignition Coil.3 - Low Output
P1319 Ignition Coil.3 - High Output
P1320 Ignition Coil.4
P1321 Ignition Coil.4 - Abnormal
P1321 Glow Indicator Lamp - Short
P1322 Ignition Coil.4 - Low Output
P1322 Glow Indicator Lamp - Open
P1323 Ignition Coil.4 - High Output
P1324 Glow Relay - Malfunction
P1325 Glow Relay - Abnormal
P1325 Glow Relay
P1326 Glow Relay - Stuck On
P1326 Glow Relay - Short
P1327 Glow Relay - Electrical
P1327 Glow Relay - Open
P1330 Spark Timing Adjust Signal
P1331 #1 MF Signal Line Short
P1332 #2 MF Signal Line Short
P1333 #3 MF Signal Line Short
P1334 #4 MF Signal Line Short
P1335 #5 MF Signal Line Short
P1336 #6 MF Signal Line Short
P1337 #7 MF Signal Line Short
P1338 #8 MF Signal Line Short
P1340 IFS 2 Open

Jun 16, 2009 | 2006 Hyundai Tucson

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