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Thread: 2001 VW Jetta 2.0L EPC code and no throttle response

  1. #1
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    2001 VW Jetta 2.0L EPC code and no throttle response

    We have a 2001 VW Jetta 2.0L that currently has a EPC code showing on the dash.
    The car will start and idle fine, but completely ignores any gas pedal movement.

    This is the PR-Build data picture.

    So far as we know the car is in stock condition.

    VCDS Auto-scan:
    Code:
    Chassis Type: 9M - VW Jetta IV (1998 > 2014)
    Scan: 01 02 03 08 09 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57
              75 76
     
       Mileage: 282800km-175723miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 06A-906-032-AZG.clb
       Part No: 06A 906 032 DS
       Component: 2.0l R4/2V      G  *3664  
       Coding: 00001
       Shop #: WSC 00066  
       VCID: 72A8FA6E3C17A5DFA1-5184
    
    20 Faults Found:
    16804 - Catalyst System; Bank 1 
                P0420 - 35-00 - Efficiency Below Threshold
    17766 - Cylinder 2 Ignition Circuit 
                P1358 - 35-10 - Open Circuit - Intermittent
    17772 - Cylinder 4 Ignition Circuit 
                P1364 - 35-10 - Open Circuit - Intermittent
    17769 - Cylinder 3 Ignition Circuit 
                P1361 - 35-10 - Open Circuit - Intermittent
    17763 - Cylinder 1 Ignition Circuit 
                P1355 - 35-10 - Open Circuit - Intermittent
    16955 - Brake Switch (F) 
                P0571 - 35-00 - Implausible Signal
    16605 - Angle Sensor 2 for Throttle (G188) 
                P0221 - 35-10 - Implausible Signal - Intermittent
    17551 - Load Calculation Cross Check 
                P1143 - 35-10 - Upper Limit Exceeded - Intermittent
    17950 - Angle Sensor 1 for Throttle Actuator (G187) 
                P1542 - 35-10 - Implausible Signal - Intermittent
    17553 - Mass Air Flow Sensor (G70) 
                P1145 - 35-10 - Short to Plus - Intermittent
    16523 - Oxygen (Lambda) Sensor B1 S2 
                P0139 - 35-10 - Response too Slow - Intermittent
    17574 - Long Term Fuel Trim Additive Air; Bank 1; Range 2 
                P1166 - 35-10 - System too Rich - Intermittent
    16826 - EVAP Emission Control Sys 
                P0442 - 35-10 - Small Leak - Intermittent
    17972 - Throttle Actuator (J338) 
                P1564 - 35-10 - Under-Voltage during Basic Setting - Intermittent
    16891 - Idle Control System RPM 
                P0507 - 35-10 - Higher than Expected. - Intermittent
    17559 - Long Term Fuel Trim Additive Air; Bank 1; Range 1 
                P1151 - 35-10 - System too Lean - Intermittent
    17967 - Throttle Body (J338) 
                P1559 - 35-10 - Fault in basic settings - Intermittent
    16610 - Throttle Pedal Position Sensors (G79)/(G185) 
                P0226 - 35-00 - Implausible Signal
    18041 - Accelerator Position Sensor 2 (G185) 
                P1633 - 35-10 - Signal too Low - Intermittent
    16795 - Secondary Air Injection System 
                P0411 - 35-00 - Incorrect Flow Detected
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 1C0-907-37x-ABS.lbl
       Part No: 1C0 907 379 C
       Component: ABS FRONT MK60      0103  
       Coding: 0004097
       Shop #: WSC 00066 000 00000
       VCID: 2A18220E8447AD1FD9-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
       Part No: 6Q0 909 605 F
       Component: 04 AIRBAG VW6  0202 0004  
       Coding: 12340
       Shop #: WSC 00066  
       VCID: 3A38124E24E71D9FA9-5184
    
    10 Faults Found:
    00532 - Supply Voltage B+ 
                07-10 - Signal too Low - Intermittent
    01299 - Diagnostic Interface for Data Bus (J533) 
                49-10 - No Communications - Intermittent
    00592 - Seat Belt Switch; Passenger (E25) 
                32-10 - Resistance Too High - Intermittent
    01218 - Side Airbag Igniter; Passenger Side (N200) 
                32-10 - Resistance Too High - Intermittent
    00595 - Crash Data Stored 
                35-00 - -
    01214 - Crash Data for Belt Tensioner Stored 
                35-00 - -
    00588 - Airbag Igniter; Driver Side (N95) 
                32-10 - Resistance Too High - Intermittent
    00589 - Airbag Igniter 1; Passenger Side (N131) 
                29-10 - Short to Ground - Intermittent
    00654 - Seat Belt Tensioner Igniter; Driver Side (N153) 
                29-10 - Short to Ground - Intermittent
    00654 - Seat Belt Tensioner Igniter; Driver Side (N153) 
                32-00 - Resistance Too High
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
       Part No: 1J0 920 905 J
       Component: A4-KOMBIINSTR. VDO V52   
       Coding: 07232
       Shop #: WSC 23329  
       VCID: 2E102E1EE8AFC13F05-5184
    
       Subsystem 1 - Part No: IMMO
       Component: IDENTNR: VWZ7Z0Y2854086         
       IMMO-IDENTNR: VWZ7Z0Y2854086       
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
       Part No: 6N0 909 901 
       Component: Gateway K<->CAN    0001  
       Coding: 00006
       Shop #: WSC 00066  
       VCID: 70ACF066321B97CF57-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 1J0-959-799.lbl
       Part No: 1J0 959 799 AJ
       Component: 61 Zentral-SG Komf. 0001  
       Coding: 04096
       Shop #: WSC 00066  
       VCID: 0640B6BE209FA97F9D-4B3C
    
       Subsystem 1 - Part No: 1J1959801C
       Component: 61 Tőrsteuerger. FS0002r  
    
       Subsystem 2 - Part No: 1J1959802D
       Component: 61 Tőrsteuerger. BF0002r  
    
       Subsystem 3 - Part No: 1J4959811C
       Component: 61 Tőrsteuerger. HL0002r  
    
       Subsystem 4 - Part No: 1J4959812C
       Component: 61 Tőrsteuerger. HR0002r  
    
    1 Fault Found:
    00953 - Interior Light Time limit 
                25-00 - Unknown Switch Condition
    
    End----------(Elapsed Time: 05:29, VBatt start/end: 13.9V/13.7V)-----------
    What we have already tried is the following:
    Replaced gas pedal sending unit, did not fix the problem.
    Swapped the MAF with some spares, none of which fixed the issue. (could be all three were bad, but unlikely)

    We suspect that the ECU needs replacing, could that be why the VCDS scan output show so many problems in the Engine module?
    Or is the ECU fine, and the car really does have all of the problems listed?

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  3. #2
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    Hi and welcome!
    First of all clear all DTC's, run two new scans - one with just ignition on, second with engine @ idle. Post here.

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  5. #3
    NostraJackAss Jack@European_Parts's Avatar
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    ECU is either smoked & the result of shorted consumer, most likely OXS oxygen sensor heater or wiring from ECU to TV is faulty.

    https://www.ebay.com/itm/162353469549
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  7. #4
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    Ok, all DTC's have been cleared, here are the Auto-Scans:

    Just the ignition on:
    Code:
    Chassis Type: 9M - VW Jetta IV (1998 > 2014)
    Scan: 01 02 03 08 09 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57
              75 76
     
       Mileage: 282800km-175723miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 06A-906-032-AZG.clb
       Part No: 06A 906 032 DS
       Component: 2.0l R4/2V      G  *3664  
       Coding: 00001
       Shop #: WSC 00066  
       VCID: 72A8FA6E3C17A5DFA1-5184
    
    2 Faults Found:
    16610 - Throttle Pedal Position Sensors (G79)/(G185) 
                P0226 - 35-00 - Implausible Signal
    18047 - Accelerator Position Sensor 1/2 (G79/G185) 
                P1639 - 35-00 - Implausible Signal
    Readiness: 0110 1101
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 1C0-907-37x-ABS.lbl
       Part No: 1C0 907 379 C
       Component: ABS FRONT MK60      0103  
       Coding: 0004097
       Shop #: WSC 00066 000 00000
       VCID: 2A18220E8447AD1FD9-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
       Part No: 6Q0 909 605 F
       Component: 04 AIRBAG VW6  0202 0004  
       Coding: 12340
       Shop #: WSC 00066  
       VCID: 3A38124E24E71D9FA9-4B3C
    
    10 Faults Found:
    00532 - Supply Voltage B+ 
                07-10 - Signal too Low - Intermittent
    01299 - Diagnostic Interface for Data Bus (J533) 
                49-10 - No Communications - Intermittent
    00592 - Seat Belt Switch; Passenger (E25) 
                32-10 - Resistance Too High - Intermittent
    01218 - Side Airbag Igniter; Passenger Side (N200) 
                32-10 - Resistance Too High - Intermittent
    00595 - Crash Data Stored 
                35-00 - -
    01214 - Crash Data for Belt Tensioner Stored 
                35-00 - -
    00588 - Airbag Igniter; Driver Side (N95) 
                32-10 - Resistance Too High - Intermittent
    00589 - Airbag Igniter 1; Passenger Side (N131) 
                29-10 - Short to Ground - Intermittent
    00654 - Seat Belt Tensioner Igniter; Driver Side (N153) 
                29-10 - Short to Ground - Intermittent
    00654 - Seat Belt Tensioner Igniter; Driver Side (N153) 
                32-00 - Resistance Too High
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
       Part No: 1J0 920 905 J
       Component: A4-KOMBIINSTR. VDO V52   
       Coding: 07232
       Shop #: WSC 23329  
       VCID: 2E102E1EE8AFC13F05-5184
    
       Subsystem 1 - Part No: IMMO
       Component: IDENTNR: VWZ7Z0Y2854086         
       IMMO-IDENTNR: VWZ7Z0Y2854086       
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
       Part No: 6N0 909 901 
       Component: Gateway K<->CAN    0001  
       Coding: 00006
       Shop #: WSC 00066  
       VCID: 70ACF066321B97CF57-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 1J0-959-799.lbl
       Part No: 1J0 959 799 AJ
       Component: 61 Zentral-SG Komf. 0001  
       Coding: 04096
       Shop #: WSC 00066  
       VCID: 0640B6BE209FA97F9D-4B1E
    
       Subsystem 1 - Part No: 1J1959801C
       Component: 61 Tőrsteuerger. FS0002r  
    
       Subsystem 2 - Part No: 1J1959802D
       Component: 61 Tőrsteuerger. BF0002r  
    
       Subsystem 3 - Part No: 1J4959811C
       Component: 61 Tőrsteuerger. HL0002r  
    
       Subsystem 4 - Part No: 1J4959812C
       Component: 61 Tőrsteuerger. HR0002r  
    
    No fault code found.
    
    End----(Elapsed Time: 05:27, VBatt start/end: 11.9V/11.9V. VIgn 11.9V)-----
    ...and with the engine running at idle:
    Code:
    Chassis Type: 9M - VW Jetta IV (1998 > 2014)
    Scan: 01 02 03 08 09 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57
              75 76
     
       Mileage: 282800km-175723miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 06A-906-032-AZG.clb
       Part No: 06A 906 032 DS
       Component: 2.0l R4/2V      G  *3664  
       Coding: 00001
       Shop #: WSC 00066  
       VCID: 72A8FA6E3C17A5DFA1-5184
    
    2 Faults Found:
    16610 - Throttle Pedal Position Sensors (G79)/(G185) 
                P0226 - 35-00 - Implausible Signal
    18047 - Accelerator Position Sensor 1/2 (G79/G185) 
                P1639 - 35-00 - Implausible Signal
    Readiness: 0110 1101
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 1C0-907-37x-ABS.lbl
       Part No: 1C0 907 379 C
       Component: ABS FRONT MK60      0103  
       Coding: 0004097
       Shop #: WSC 00066 000 00000
       VCID: 2A18220E8447AD1FD9-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
       Part No: 6Q0 909 605 F
       Component: 04 AIRBAG VW6  0202 0004  
       Coding: 12340
       Shop #: WSC 00066  
       VCID: 3A38124E24E71D9FA9-4B5C
    
    10 Faults Found:
    00532 - Supply Voltage B+ 
                07-10 - Signal too Low - Intermittent
    01299 - Diagnostic Interface for Data Bus (J533) 
                49-10 - No Communications - Intermittent
    00592 - Seat Belt Switch; Passenger (E25) 
                32-10 - Resistance Too High - Intermittent
    01218 - Side Airbag Igniter; Passenger Side (N200) 
                32-10 - Resistance Too High - Intermittent
    00595 - Crash Data Stored 
                35-00 - -
    01214 - Crash Data for Belt Tensioner Stored 
                35-00 - -
    00588 - Airbag Igniter; Driver Side (N95) 
                32-10 - Resistance Too High - Intermittent
    00589 - Airbag Igniter 1; Passenger Side (N131) 
                29-10 - Short to Ground - Intermittent
    00654 - Seat Belt Tensioner Igniter; Driver Side (N153) 
                29-10 - Short to Ground - Intermittent
    00654 - Seat Belt Tensioner Igniter; Driver Side (N153) 
                32-00 - Resistance Too High
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
       Part No: 1J0 920 905 J
       Component: A4-KOMBIINSTR. VDO V52   
       Coding: 07232
       Shop #: WSC 23329  
       VCID: 2E102E1EE8AFC13F05-5184
    
       Subsystem 1 - Part No: IMMO
       Component: IDENTNR: VWZ7Z0Y2854086         
       IMMO-IDENTNR: VWZ7Z0Y2854086       
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
       Part No: 6N0 909 901 
       Component: Gateway K<->CAN    0001  
       Coding: 00006
       Shop #: WSC 00066  
       VCID: 70ACF066321B97CF57-5184
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 1J0-959-799.lbl
       Part No: 1J0 959 799 AJ
       Component: 61 Zentral-SG Komf. 0001  
       Coding: 04096
       Shop #: WSC 00066  
       VCID: 0640B6BE209FA97F9D-4B3C
    
       Subsystem 1 - Part No: 1J1959801C
       Component: 61 Tőrsteuerger. FS0002r  
    
       Subsystem 2 - Part No: 1J1959802D
       Component: 61 Tőrsteuerger. BF0002r  
    
       Subsystem 3 - Part No: 1J4959811C
       Component: 61 Tőrsteuerger. HL0002r  
    
       Subsystem 4 - Part No: 1J4959812C
       Component: 61 Tőrsteuerger. HR0002r  
    
    No fault code found.
    
    End----------(Elapsed Time: 05:28, VBatt start/end: 14.3V/14.2V)-----------
    At first glance, they appear to be the same, and many of the Engine module problems have not reoccurred, at least yet.
    After the DTCs were cleared, the throttle started working, but only for a few seconds before it stopped having any effect on engine RPM.

  8. #5
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    Wiring fault to APP sensors is possible, too, but, based on experience, I'd start with replacing the accelerator pedal with integrated G79/G185. They use to fail on MK4 Golf/Bora or NAR Jetta gasoline engines.

  9. #6
    NostraJackAss Jack@European_Parts's Avatar
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    I have yet to see an APP fail that was condemned because each one received tested good after the alleged diagnosis.

    Usually the OXS takes time to wipe the POTs line again & after the heater or wires short again.
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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  11. #7
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    Totally agree with Jack.
    O2 heater circuit shorted to ground, not fused and poof goes ECU.

    Seen it a few times everything in ECU works codes, clearing codes, data but these two codes will not clear and you can't rev engine just idle.

    I would check exhaust to see if O2 wires are shorted. Fix it and installing a fuse for heater circuit good idea. Then get a new ECU.

    Bet if you open ECU you will see a burned spot and smell burnt.

    Good Luck

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