Question about 2004 Volkswagen Phaeton

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Dtc 17973 / p1565 also 17987 /p1579 .04 vw phaeton.replaced throttle body.ecm(,programmed by vw),maf sensors.still only revs 1800 in park no response in gear.ohm check ecm to throttle body and checked no short to ground or power or each other.same test accelerator to ecm.cannot program new throttle body as codes p1565 and p1579 come up koeo.I work at aauto repair shop but cannot get diagnostic information to correct this problem.Can you help?

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: 1998 vw 2.0 starts runs but surges advance

Throttle position sensor TPS is not behaving. Codes p1543 and p1565 indicate the throttle position is too low... as if disconnected. The other codes are as a result of the EECU noting the disparity between the throttle input signal and the expected input from the engine speed and distributor/cam sensor. Check that the connector and wiring to the TPS. If these are OK then it is the TPS that needs to be changed.

Posted on Apr 30, 2010

  • 109 Answers

SOURCE: 2000 VW passat maf

I would trust them but make sure it is just not in need of some kind of cleaning.

Posted on Nov 19, 2008

  • 345 Answers

SOURCE: 1999 VW New Beetle Coolant Temp Sensor

at the back of the cylinder head gearbox end it sits in the water pipe

Posted on Dec 20, 2008

johnny5846
  • 379 Answers

SOURCE: 94 ford ranger dtc 542 and556

pull the fuel pump relay out , if pump stops , try replacing the relay . no doubt you have already fixed it seeing how old this post is :)

Posted on Dec 27, 2008

  • 1201 Answers

SOURCE: vw golf 1.4 2002.diagnostic fault codes;4076 temp

The parts aren't really that expensive, it's the labor these places charge an hour. Call around and see who can do it the cheapest, unless you want to do it your self.

Posted on Jul 22, 2009

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2003 GMC duramax 3500 has codes p0370 u1800 p0489 p0404 p0089 p0101 wont start


Hey Ernie Rutherford,

I wasn't convinced until I got to your last p101 air mass
(missing the classic oxy sensor... but that's okay)

((not EVERY sensor need be tripped)).

The engine can't run if the exhaust is blocked.

I've had two... one catalytic converter & a muffler (stumped pretty good... until I managed to blow-up the muffler... then I could finally drive home.

Not elegant but it worked...

All these years I've tried to devise an elegant test. Never succeeded (penetrating oil is as pretty as it gets)..

Open the exhaust system... if it starts... immediately shut it down... cool air on hot valves can be costly.

Good luck.

Apr 07, 2016 | GMC Cars & Trucks

1 Answer

I have an 03 Tahoe 4.8 liter I'm getting OBD codes p0120 p0220 p 1516 p2135 please clean the throttle body replace the throttle body with the position sensor my car will not start


code p 0120 refers to mass air flow(MAF) sensor/volume air flow(VAF) sensor---low input===causes wiring short to ground ---MAF/VAF sensor---ECM
code p 0220 refers to throttle position sensor (TP) B /accelerator pedal position (APP) switch B--circuit malfunction===causes --wiring--TP/APP switch---ECM
code p 2135 refers to the same as p 0220 causes and sensors

Apr 03, 2016 | Cars & Trucks

1 Answer

What is causing recurrent DTC P0102?


code p 0102 refers to mass air flow (MAF) sensor/volume air flow(VAF) sensor--low input===causes ---wiring short to ground--MAF/VAF sensor---ecm
check the wiring to the unit--plug connection

Mar 31, 2016 | 1996 Volvo 850

1 Answer

2005 ford five hundred replaced battery went into engine failsafe mode n will only idle no throttle response I replaced throttle body assembly just sits and idles


try using the scan tool to reset the ECM program
code p 2104 refers to throttle actuator control(TAC) system---forced idle mode ===causes ---wiring--TAC motor ---APP ensor--ECM
code p 2112 refers to throttle control actuatorTAC system---actuator stuck closed ===causes ---throttle body, throttle valve tight/ sticking
or TAC system--circuit malfunction===causes wiring short to positive ---short to ground ---throttle position sensor--- ECM

Feb 21, 2016 | Ford Cars & Trucks

2 Answers

Code 172 hhr


DTC P0172: Fuel Trim System Rich !
The engine control module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop (CL). During Open Loop, the ECM determines fuel delivery based on sensor signals without heated oxygen sensor (HO2S) input. During CL, the ECM adds HO2S inputs and level of purge to calculate the short and long term fuel trim (FT) adjustments. If the HO2S indicates a lean condition, the fuel trim values will be above 0 percent. If the HO2S indicates a rich condition, the FT values will be below 0 percent. The short term FT values change rapidly in response to the HO2S voltage signals. The long term FT makes coarse adjustments in order to maintain an air/fuel ratio of 14.7:1. A block of cells contain information arranged in combinations of engine RPM and engine load for a full range of vehicle operating conditions. The long term FT diagnostic is based on an average of cells currently being used. The ECM selects the cells based on the engine speed and load. The FT diagnostic will conduct a test to determine if a rich failure actually exists or if excessive vapor from the evaporative emission (EVAP) canister is causing a rich condition.
If the ECM detects an excessively rich condition, DTC P0172 sets
Circuit/System Testing For DTC P0172
?€¢
Allow the engine to reach operating temperature. With the engine running, observe the Long Term FT parameter with a scan tool. The value should be more than approximately -20 percent with the engine running at operating temperature.


?€¢
If the value is not more than -20 percent, inspect for the following:


-
With the engine idling and the transmission in the Park or Neutral position, observe the manifold absolute pressure (MAP) sensor parameter. The MAP sensor parameter should be between 19-42 kPa.


?‡'
If the MAP sensor parameter is not between 19-42 kPa, refer to DTC P0106 .


-
With the engine idling, observe the mass air flow (MAF) sensor parameter. The MAF sensor parameter should be within 2-6 g/s at idle.


?‡'
If the MAF sensor parameter is not within 2-6 g/s at idle, refer to DTC P0101 or P1101 or DTC P0102 or P0103 .


-
Vacuum hoses for splits, kinks, and improper connections


-
The air intake duct for being collapsed or restricted


-
The air filter for being dirty or restricted


-
Objects blocking the throttle body


-
Excessive fuel in the crankcase due to leaking fuel injectors


-
The evaporative emissions control system for improper operation


-
Excessive fuel pressure


-
Malfunctioning fuel injectors


-
Fuel contamination


-
The HO2S for improper installation and for electrical wires or connectors that may have contacted the exhaust system


-
The HO2S signal circuit shorted to voltage

Oct 05, 2015 | Cars & Trucks

1 Answer

What is a solution to fixing the mass air flow system, with code po121


DTC P0121: Throttle Position (TP) Sensor 1 Performance
Circuit/System Description
The engine control module (ECM) uses the following information to calculate an expected airflow rate:
?€¢
The throttle position (TP)


?€¢
The barometric pressure (BARO)


?€¢
The manifold absolute pressure (MAP)


?€¢
The intake air temperature (IAT)


?€¢
The engine RPM


P0121 The predicted air flow and the predicted MAP combined are outside a calibrated range for more than 3 seconds.
Circuit/System Testing

  1. Inspect for the following conditions:
  2. ?€¢
    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


    ?€¢
    Air leaks at throttle body mounting area and intake manifold sealing surfaces


    ?€¢
    Throttle body for dirt, debris, and coking--Refer to Throttle Body Cleaning.

  3. Allow the engine to reach operating temperature. Observe the MAP Sensor Voltage parameter with a scan tool. Voltage should be more than 0.8 volt and less than 4 volts.
  4. ?‡'
    If more than 4 volts or less than 0.8 volt, refer to DTC P0106.

  5. Idle the engine. Observe the MAP Sensor kPa parameter with a scan tool. Increase the engine speed slowly and then back to idle. The MAP sensor kPa should change smoothly and gradually as engine speed is increased and returned to idle.
  6. ?‡'
    If the MAP sensor kPa does not change, refer to DTC P0106.

  7. Take a snapshot of the engine data list while performing the actions listed below. The mass air flow (MAF) sensor g/s should change smoothly and gradually as the engine speed is increased and is returned to idle.
  8. ?€¢
    Idle the engine.


    ?€¢
    Increase the engine speed slowly to 3,000 RPM, then back to idle.


    ?€¢
    Exit from the snapshot and review the data.


    ?€¢
    Observe the Mass Air Flow (MAF) Sensor parameter frame by frame with a scan tool. The MAF sensor g/s should change smoothly and gradually as the engine speed is increased and is returned to idle.


    ?‡'
    If the MAF sensor g/s does not change smoothly and gradually as the engine speed is increased and is returned to idle, refer to DTC P0101 or P1101.

  9. Inspect the throttle body for the following conditions:
?€¢
Loose or damaged throttle blade


?€¢
Broken throttle shaft


?€¢
Any throttle body damage


?‡'
If any of these conditions exist, replace the throttle body assembly.

Jun 20, 2015 | 2008 GMC Sierra 1500 2WD

1 Answer

2012 CRUZE DTC P2100


I had the same issue with my 2014 Cruze TDI. It was solid, every time I started the car the error would appear. So I disassembled the air intake and everything was clean except for the sensor between the MAF sensor and the throttle body. I have no idea why it was dirty when everything else was very clean. But I cleaned it a week ago and the light has not come on again. I hope this helps.

May 18, 2013 | 2012 Chevrolet Cruze LS Sedan 1.8L 4-cyl....

2 Answers

Epc light on


EPC means Electronic Power Control.

When this light comes on, yopu could have such a sudden power loss.

However, before visiting a workshop for help, do the following basic checks:

No air leak into the intake system.

Ensure that all the electrical socket in the engine management system are well fitted, no loose contacts.

This light can be caused throttle valve malfunction, MAF, brake lights, EVAP , 02 sensor, secondary air pump.

I suggest you visit a competent dealer or independent shop for help. They will scan the EPC and run 'Throttle Body Adaption'. and diagnos the problem. Ask for a garage with a 'Ross Tech VAG-COM' or a ' VW diagnostics scanner.'

See here for a shop near you : http://www.iatn.net/shopfinder/

Jan 12, 2011 | 2005 Volkswagen Phaeton

1 Answer

2000 new beetle 1.8Ltr Shuts off


The EPC (Electronic Pedal Control) is the "fly by wire" system that controls the throttle, it took the place of the cable that went from the gas pedal to the throttle body on VW. If this light is on and there is also a P0102, MAF (Mass Air Flow) related code stored in the vehicle's computer, the EPC may be caused indirectly from a faulty MAF. If the EPC is on and there is no other codes stored, it could be a faulty electronic throttle body or need to be re-programmed. The vehicle's computer must recognoze the throttle body so when replacing it with new or used it will need to be programmed at the dealer. Recently I replaced a MAF (a common problem on VW's) on a VW Golf and when I cleared the code the EPC went off as well.

Check the engine codes, and replace or repair the faulty sensor (most likely the MAF sensor).

Thanks for using FixYa - a FixYa rating is appreciated!!

Feb 08, 2009 | 2000 Volkswagen Beetle

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