Posts Tagged ‘actron obd2 code reader’

P0101 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Range/Performance Problem

What does that mean?

Basically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit. The PCM detects that the actual MAF sensor frequency signal is not within a predetermined range of the calculated MAF value for more than 4.0 seconds. Other MAF sensor circuit DTC trouble codes are P0100, P0102, P0103, and P0104.

Symptoms

You will likely not notice any serious drive-ability problems, although there may be symptoms.

Possible Solutions

The simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures:
Inspect for the following conditions:

1. The secondary ignition wires or coils
2. Any solenoids
3. Any relays
4. Any motors

• A low minimum air rate through the sensor bore may cause this DTC to set at idle or during deceleration. Inspect for any vacuum leaks downstream of the MAF sensor.




• A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor g/s display on the scan tool to increase rapidly. This increase should be from 6-12 g/s at idle to 230 g/s or more at the time of the 1-2 shift. If the increase is not observed, inspect for a restriction in the induction system or the exhaust system.




• The barometric pressure (BARO) that is used in order to calculate the predicted MAF value is initially based on the MAP sensor at key ON.




• When the engine is running the MAP sensor value is continually updated near WOT. A skewed MAP sensor will cause the calculated MAF value to be inaccurate. The value shown for the MAP sensor display varies with the altitude. With the ignition ON and the engine OFF, 103 kPa is the approximate value near sea level. This value will decrease by approximately 3 kPa for every 305 meters (1,000 feet) of altitude.




• A high resistance on the ground circuit of the MAP sensor can cause this DTC to set.




• Any loss of vacuum to the MAP sensor can cause this DTC to set.

If you suspect the problem may be related to aftermarket accessories, refer to Checking Aftermarket Accessories in Wiring Systems.

Source: ChevyAvalancheFanClub

P0101 GM Digital Mass Air Flow Sensor Diagnostics and Troubleshooting

CarMD 2100 Vehicle Health System and Diagnostic Code Reader for OBDII Vehicles $93.99 This product offers peace of mind for anyone who has ever worried about car maintenance and repairs. The easy-to-use device, which fits inside a purse or glove compartment, empowers drivers to monitor their vehicles health. The CarMD tool can be used to quick-check an unlimited number of vehicles. Within seconds, its color-coded (green, yellow, red) vehicle health monitor LED’s tell you if your ve…

Interface USB OBD2 OBD II for BMW – INPA/Ediabas – K+DCAN $53.00 Interface USB OBD2 for BMW – INPA/Ediabas – K+DCAN allows full diagnostic of BMW from 1998 to 2008 (all functiosn as in OMNITEC interface). Build in 2 lines K and D-Can magistral Features: Read and delete errors Adaptations Driver programming Applu coding and others… Supports protocols: 1. Fast magistral D-CAN and PT-CAN (500 kbit/s) 2. Slow magistral K-CAN (100 kbit/s) 3. Standard BMW protoco…

Bluetooth ELM 327 Diagnostics USB Cable $14.00 The program is very user-friendly, and easy to learn. The package includes software for reading and resetting codes. Gnet’s DigitalDash 5, a front end software for a Car PC that includes OBD functionality when the device is connected to your car pc. The processor is compatible with the AT command set for the widest compatibility with freeware and commercial programs written for the ELM series of i…

Autel MaxiScan MS300 CAN Diagnostic Scan Tool for OBDII Vehicles $17.99 Display: Backlit LCD, 2-line, 8 characters Operating Temperature: 0 to 50 C (32 to 122 F) Storage Temperature: -20 to 70 C (-4 to 158 F) Power: 10.0 to 15.5 Volts provided via vehicle battery Dimensions: Length Width Height 113 mm ( 4.4″) ???74 mm ( 2.9″) 21mm (0.83″) NW: 0.25 Kg(0.45lb), GW: 0.27Kg(0.50lb)…

Soliport ELM 327 Bluetooth OBDII OBD2 Diagnostic Scanner $11.31 * Works with all OBD-II compliant vehicles * Wireless (Bluetooth) * Software included for Windows PC * Software included for Windows Smartphone * ISO15765-4 (CAN) * ISO14230-4 (KWP2000) * ISO9141-2 * J1850 VPW * J1850 PWM Note: pls be sure that your car compatible with these agreement before you buy Functions: * Read diagnostic trouble codes, both generic and manufacturer-specific, and dis…

BAFX Brand – ELM327 BLUETOOTH – OBDII OBD2 DIAGNOSTIC SCANNER – CAN ELM 327 SCANTOOL – CHECK ENGINE LIGHT CAR CODE READER $23.99 Features The program lets you perform the following operations: ?Read diagnostic trouble codes, both generic and manufacturer-specific , and display their meaning (over 3000 generic code definitions in the database). ?Clear trouble codes and turn off the MIL (“Check Engine” light) ?Display current sensor data, including: Engine RPM Calculated Load Value Coolant Temperature Fuel S…

Total OBD & ECU Auto Diagnostics Software $197.00 Quickly, Easily and Safely Communicate With Your Car’s OBD I & II System and Tune or Remap It’s ECU Chip – Just Like the $150/h Professional Mechanics Would Do… =========== ABOUT: =========== TOTAL OBD & ECU Auto Diagnostics(TM) is a DVD that’s jam-packed with dozens of the most advanced, comprehensive and powerful “car-manufacturer-approved” OBD software applications that’ll let you diagnose …

ELM 327 USB CAN-BUS Automotive Vehicle Car Diagnostic Interface Code Scanner ELM327 OBD-II OBD2 $18.30 Description: This program is very user-friendly, and easy to learn. Allows you to use your PC and a hardware interface to get the information from your car’s computer. It is also very easy to install: simply extract the files into a folder on your computer’s hard drive, and you’re ready to go. To uninstall the program, simply delete the entire contents of the folder where the program resides. Soft…

Automotive Vehicle Car Diagnostic Interface Scanner CAS0804 Code Reader Tools $39.99 The CAS0804 code reader supports all OBD2 protocols,including the newly released Controller Area Network(CAN) protocol. Though it is small, it is able to retrieve same information as large expensive scannersFeatures: Works with all 1996 and newer vehicles that are OBD2 compliant(including 11bit CAN and 29bit CAN) Reads and Clears generic and manufacturer specific Diagnostic Trouble Codes(DTCs) and…

Slim USB VAG K+can 1.4 Commander Full OBD Obdii 2 Interface Diagnostic Equipment What Can You Do with This Interface: Monitor and Log dozens of real time parameters; Check and clear engine fault codes before going to an expensive auto shop; Adjust the timing and idle; Power balance testing; Reset the self-learn codes; Control idle air valves, relays (AC, fans, etc), timing; Diagnose customer vehicles on-site; Speed up troubleshooting of electronically monitored components; No …

---