Question about 2005 Chevrolet Colorado

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Wont idle. change mass air flow sensor and idle air control sensor

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Check the engine breather pipes for splitting and perishing

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Ok, i have a 2000 sierra 5.3 slt got the p0101 code it wouldnt star up unles i give it some gas and it shots off so, rough idle and wont stay on, i change the MAF sensor (new delphi) but still doing the...


The Mass Air Flow (MAF) sensor is located in the stream of intake air and measures this intake flow rate by measuring a part of the entire intake flow. It is what they call a hot film and is supplied with electric current from the Engine Control Module (ECM).
The temperature of the hot film is controlled by the ECM to a certain extent. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
The OBDII people suggest that before you replace the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with compressed air or by using a cleaner on the mass air flow sensor. Truly, all that may be wrong is a build-up of dirt.Unfortunately, in your case, replacing the Mass Air Flow did not work.After replacement, did you reset the code and drive the vehicle?.
I suggest you replace the air filter and check for intake air leaks.YouTube has some good videos on how to do this, one by Eric the car guy and one by Scottie Kilmer https://www.youtube.com/watch?v=9CPqbaSgcokhttps://www.youtube.com/watch?v=zMok2y05jNE

Jan 13, 2015 | 2000 GMC New Sierra 1500

1 Answer

I just got my car scanned and a few codes pop up


Error Code: P0130
Fault:
Oxygen Sensor (O2S) 1, Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
-Wiring harness.
-Oxygen sensor (O2S).
-Engine control module (ECM).

Error Code: P0505
Fault:
Idle Speed Control (ISC) System - Malfunction
Possible Cause:
-Wiring harness.
-Idle speed control (ISC) actuator/Idle air control valve (IAC) valve.
-Throttle motor.
-Throttle valve tight/sticking.
-Engine control module (ECM).

Error Code: P0100
Fault Location:
-Mass Air Flow (MAF) Sensor/Volume Air Flow (VAF) Sensor - Circuit --Malfunction
Possible Cause:
-Wiring harness.
-Mass air flow (MAF) sensor.
-Volume air flow (VAF) sensor.
-Engine control module (ECM).

Error Code: P1491
Fault:
Exhaust Gas Recirculation (EGR) Valve Insufficient Lift
Possible Cause:
-Wiring harness.
-EGR Valve.
-ECM

Error Code:P1607
Fault:
-Engine Control Module (ECM)/Powertrain Control Module (PCM)

Error Code: P0966
Location:
-Pressure Control (PC) Solenoid B - Circuit Low
Possible Cause:
-Wiring short to earth.
-Pressure control (PC) solenoid.
-Engine control module (ECM)/Powertrain control module -(PCM)/Transmission control module (TCM) .


Apr 30, 2013 | 2004 Honda Civic

1 Answer

P0068 on a 2006 Dodge Ram 1500 SLT. Rough "hunting" for idle. Momentary lag/loss of power from a stop. Random RPM changes while at a constant speed. Sometimes it feels like it drops out of gear...


P0068 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of power
- Engine rough idle Possible causes - Large vacuum leak
- Leaking air duct system
- Mass Air Flow (MAF) poor electrcial connection
- Manifold Absolute Pressure (MAP) poor electrcial connection
- Faulty Mass Air Flow (MAF) sensor
- Faulty Manifold Absolute Pressure (MAP) sensor
- TP sensor not seated properly.
- Faulty Throttle Position (TP) sensor.
- Dirty throttle body
When is the code detected? The Powertrain Control Module (PCM) monitors operation rationality check by comparing sensed throttle position to mass air flow readings
P0068 DODGE Description The Powertrain Control Module (PCM) monitors a vehicle operation rationality check by comparing Throttle Position (TP) to Mass Air Flow (MAF) readings. If, during a self-test, the comparison of the TP sensor and MAF sensor readings are not consistent with the calibrated load values, the test fails and a diagnostic trouble code is stored in continuous memory.

Jul 10, 2011 | Dodge Ram 1500 Cars & Trucks

2 Answers

Replaced mass air flow sensor, fuel filter, air filter, plugs, wires, cap and rotor. Truck would not go past 2500 RPM before I installed new maf sensor. Now it wont idle when stopped. Runs fine down the...


Make sure there are no vacuum leaks around the mass air flow sensor. If it won't idle when stopped, change the Idle Air Control Valve. Reset the ECU module by removing the negative battery terminal and leave it aside for ten minutes and then reconnect it.

Jun 23, 2011 | 1997 Nissan Pickup

2 Answers

Wont idle right.Idles at 2000 rpm then drops to 900 or less then usually will stall.If i unplug the mass air sensor while it is running nothing changes. Does this mean it is bad? Thanks,John


MAF concerns the proper mixture of fuel, not the idle speed, so it is most likely all right (if it wasn't, your car would die before it reached 2000 RPM's). Idle speed is controlled by a small motor, generally mounted around the throttle plate. This is controlled by a computer, which judges idle requirements by the input from crank or camshaft position sensors. Make sure that all of your sensors are clean, and in proper operation.

Dec 01, 2009 | 1996 Volkswagen Jetta

2 Answers

High rpm


Welcome to fixya, check the idle air control and the mass air flow sensor.

Aug 10, 2009 | 1997 Chevrolet Cavalier

2 Answers

Were is the IAT in a 2004 nissan altima


Removal and Installation To Remove:
  1. Remove or disconnect the following:
    • Mass air flow sensor electrical connector
    • Tube clamp at the electronic throttle control actuator
    • Air cleaner to electronic throttle control actuator tube, upper air cleaner case
    • Mass air flow sensor from the cleaner case.
To Install:
  1. Install or connect the following:
    • Mass air flow sensor to the cleaner case
    • Air cleaner to electronic throttle control actuator tube
    • Tube clamp at the electronic throttle control actuator
    • Mass air flow sensor electrical connector
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Mar 28, 2009 | 2004 Nissan Altima

2 Answers

Wont stay runing


try pulling the plug out on the idle air control valve then start it if thats not it try the map then the idle control

Dec 13, 2008 | 1998 Jeep Grand Cherokee

2 Answers

1998 Plymouth Voyager


I had the same problem. I changed out the idle air control valve and that solved the problem. Somehow the electrical connector fried out some of the pins.

Oct 25, 2008 | 1998 Plymouth Grand Voyager

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