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Mean check engine light comes

Check engine light on, check with OBD code came out engine coolant temp sensor and fuel air metering sensor or MAF, change both including thermostat and clean front 02 sensor after that i cleared it from my OBD and it's all gone then after i drove it for 20 minutes same light came on again, cleared it again after a night following morning goes to work 20 minutes after same light came on again and engine idle is normal 8 on rpm. any help, advise, or suggestion???? THANKs !!!!!

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This also happened to me and it was the heater matrix, whatever that is

Posted on Mar 17, 2014

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6ya6ya
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Posted on Jan 02, 2017

justuscc
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SOURCE: FUEL AIR METERING

thats a code for an air fuel metering 02 sensor "a/f sensor" make sure you got the right one in u might have got just an 02 sensor instead of an "a/f sensor" hope this helps also is it a dx ex 6 cyl 4cyl?

Posted on Sep 17, 2008

  • 3 Answers

SOURCE: PO171 OBD-II Trouble Code " System Lean To Bank 1

Check PCV valve and be sure it is not stuck open.  Check for vacuum leak at intake manifold.  

Posted on Jan 01, 2009

landsend
  • 1066 Answers

SOURCE: rough start on 2001 escape

how about a simple tune-up?  Plugs and filters.

Posted on Apr 01, 2009

  • 51 Answers

SOURCE: Chevy truck '02 surges between 45 and 55 mph

you should change the tps( throtal position sensor) this can cause that problem

Posted on Aug 15, 2009

ghost45
  • 1280 Answers

SOURCE: Year 2001 XG300 P0115, P1159, P1191, P1193, P0115

P0115 - Engine Coolant Temp Sensr - open/short
P1159 - Variable Intake Motor Malfunction

P1191/P1193 Limp Home Valve - Low RPM

First, clean the throttle body and check for anything which might obstruct AIR FLOW to it.

The P1159 is the Variable Intake Motor Malfunction. this motor is either 'OPEN'... or 'CLOSED' position. It is located on/in the intake manifold (plenum) and is only opened when cruising... it is closed at idle. If it sticks 'OPEN' is can cause drivability issues.

Posted on Oct 19, 2009

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2 Answers

Car sputtering badly. Codes P303 n P102 show on diagnostics and have replaced both parts associated with these codes,PLUS, new fuel filter, engine still sputtering badly.


Hi,

I hope I can help with this. This could mean the engine spark plugs or plug is the issue. Also check the exhaust pipe. White smoke indicates a coolant issue. Check your coolant reservoir. Black smoke indicates a Fuel issue. Blue is an oil issue. Also, speaking of your spark plugs there very well could be a misfire.

the code P303 could be cylinder 3 misfire
P102 the mass air flow sensor which is on the air filter cover. It's an electrical part and is sensor. Please check these and let me know.

Jul 28, 2016 | Cars & Trucks

2 Answers

Ok what do you call the sensor


Ok what do you call the sensor Arnold, List of sensors, could be more on different vehicles. You will have to have scanned to get codes to diagnose problem.
  • Crank Position (CKP)
  • Cam Position (CMP)
  • Engine Coolant temp (ECT)
  • Manifold Absolute Pressure or Mass Air Flow, MAP and/or MAF.
  • Throttle position (TPS)
  • Accelerator pedal position (APPS)
  • Heated Oxygen sensor in exhaust (H02S)
  • Wheel Speed Sensor
  • Tire Pressure sensor (TPMS)
  • Intake/Ambient Air Temp (IAT) "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Mar 24, 2016 | Cars & Trucks

1 Answer

How to repair P0125 for 2000 Mercury Mountaineer


P0125 OBD-II Trouble Code Technical Description Insufficient Coolant Temperature For Closed Loop Fuel Control What does that mean? This means that the engine coolant temperature (ECT) sensor indicates that the engine has not reached the required temperature level to enter closed-loop operation within a specified amount of time after starting the engine. Symptoms You will likely not notice any drivability problems. Causes A code P0125 may mean that one or more of the following has happened: Insufficient warm up time Low engine coolant level Leaking or stuck open thermostat Faulty coolant temperature sensor Possible Solutions The simplest thing to do is to reset the code and see if it comes back. If the code comes back, the problem is likely going to be the result of the above causes (faulty thermostat, faulty ECT sensor, or a low coolant level). Other ECT sensor and circuit related DTCs: P0115, P0116, P0117, P0118, P0119, P0128 Register now to ask a question (free) Related P0125 DTC Discussions 1996 chevrolet Caprice p0125 Car start properly but after 5 or 10 minutes driving start doing missing and stop. After that car will not start but 20 minutes it start but again stop, if you just start the care and don?t drive it will start 24 hours with no issue but if you will go for drive than you will stuck in middle of the r... P0125 on a Saturn Sc1 My grandpa's car has a p0125 check engine light on. Tha car will not start and is running rich on fuel. We tried replacing the fuel pump and filter, fuel injectors and even the coolant temp sensor and it didn't work. What else can it be? Here's the code. P0125- closed loop fuel control insufficien... 1997 corolla engine code p0125 Im getting code p0125 in my 1997 corolla and have changed thermostat coolant temp sensor and have topped up coolant level but code keeps reappearing any sugestions would be appreciated.... 2000 4runner P0125B code Engine light came on. Local garage read code as P0125B. Internet search says engine coolant temp. sensor which I will replace. Where is it located on 3.4L engine?... camaro codes p0404 p0505 p1404 p0304 p0122 p0125 Hey I got the codes when I ran my test p0122,p0125,p0304 P0404,p0405,p1404 was wondering what's all that and the price or it better to replace the motor...

Read more at: http://www.obd-codes.com/p0125
Copyright © OBD-Codes.com

May 18, 2015 | 2000 Mercury Mountaineer

1 Answer

03 trailblazer is hard to start I have to turn the key 15-20 times before it starts. I put in new fuel pump, filter, relays good starter good just hard to start any suggestions on how to fix this issue. ...


You can check the fuel pressure regulator ,
  1. Inspect for a fuel leak from the fuel pressure regulator vacuum port.
Is the fuel pressure regulator leaking fuel ?
This next test needs a scan tool with data reading capability's ,not a code reader ! Are you familiar with OBD 2 ? All the sensors , coolant , O2S , TPS , MAF , Intake air temp. etc. Sensor/System
Monitor the engine coolant temperature (ECT) sensor with the scan tool. Compare the engine coolant temperature with the ambient air temperature on a cold engine. If the coolant temperature reading is more than 5 degrees more or less than the ambient air temperature on a cold engine, check for high resistance in the coolant sensor circuit.
?€¢
Inspect the PCM grounds for being clean, tight, and in their proper location. Refer to Power and Grounding Component Views in Wiring Systems.


?€¢
Inspect vacuum hoses for splits, kinks, and proper connections, as shown on Vehicle Emission Control Information label. Inspect thoroughly for any type of leak or restriction.


?€¢
Inspect the air intake ducts for being collapsed, damaged areas, looseness, improper installation, or leaking, especially between the mass air flow (MAF) sensor and the throttle body.


?€¢
Inspect for air leaks at throttle body mounting area, mass air flow (MAF) sensor and intake manifold sealing surfaces.


?€¢
Inspect the wiring harness for poor connections, pinches, cuts, or other damage.


?€¢
Inspect for loose, damaged, or missing sensors and/or components.


Really need to check sensor PID'S with a scan tool, An maybe a scope too ! PID'S are parameter identification . All the sensors operate within a set voltage parameter , like the coolant temp. sensor an if it's off it can affect fuel delivery !
This

Mar 15, 2015 | 2003 Chevrolet TrailBlazer

2 Answers

V10 cranks but will not start. If I use starting fluid it will start and stay running. Any ideas?


The coolant temperature sensor is failing. Usually the engine will be slow to start the first time. Turn it off and it will start normally. sometimes will not start cold. There are two sensors one for the gauge and one to the computer that meters fuel to the injectors. This one is located near the thermostat housing has a two wire connector (19MM deep well socket to remove)

Mar 08, 2015 | 2001 Ford Excursion

1 Answer

P0171 and P0174 Left and Right bank lean trouble codes pulled from ECU. Check Engine Light illuminated.


P0171 = system too lean bank 1
P0174 = system too lean bank 2

The fuel/air mixture is too lean for the entire engine. The fuel pump pressure could be too low. The fuel pump pressure regulator could be at fault. There could be an air leak downstream of the MAF sensor. MAF sensor (hot wire type) could be dirty. Check for intake manifold vacuum leaks. The engine coolant temp sensor and/or the intake air temp sensor could be faulty (stuck at full hot mode).

Feb 26, 2011 | 2008 Hyundai Entourage

2 Answers

MAP sensor output voltage too low?


poor start, very poor gas millage

Jul 31, 2009 | 1993 Mitsubishi Mirage

1 Answer

Truck wont start


Is it getting fuel?
is it getting spark?


as for the code.........here is the code list for gm vehicles



Code: Meaning:
12
No Distributor pulses
13
Oxygen sensor
14
Coolant Temp sensor circuit
15
Coolant Temp sensor circuit
21
Throttle Position Sensor
22
Throttle Position Sensor
23
Manifold Air temperature sensor
24
VSS (Vehicle Speed sensor)
25
Manifold Air temperature sensor
32
EGR system
33
MAP sensor or MAF sensor depending on engine
34
MAP sensor or MAF sensor depending on engine
35
Idle Air Control Valve
36
MAF Burn-off circuit
41
No Distributor pulses, cylinder select error
42
Electronic Spark Timing or Bypass fault
43
Electronic Spark Control fault
44
Lean exhaust
45
Rich exhaust
46
VATS system fault
51
PROM fault
52
CALPAK fault
53
System over-voltage
54
Fuel pump circuit
55
ECM fault
61
Oxygen sensor fault (degraded sensor)




Jul 17, 2008 | 1990 GMC Sierra

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