2002 1.8 Turbo misfires
Hi folks,
My son has got himself an 02 turbo bug as his first car. Its got over 200,000 KM on the clock so has had a good life. Its developed a misfire which the previous sellers had fixed prior to our collection. I don't know what they did and neither do they... I got me a scanner and the below are all of the results held in memory (I then reset all faults prior to doing a 5 km drive and re-scanning): OBDII/EOBD Diag PO300 Random/multiple cylinder misfire detected PO303 cylinder 3 misfire detected PO420 catalyst efficiency below threshold (bank 1) ----------------------------- 17608 -035 KWP 1281 Boost Pressure control valve (N249): mechanical malfunction: P1200 Again this one came up after the reset, drive and re-scan 17559 -163 Long term fuel trim additive air bank 1: range 1: system too lean : P1151 17978 -163 Engine start blocked by immobilzer: P1570 16795 -163 Secondary air injection system: incorrect flow detected : P0411 16684 -035 Random/multiple cylinder misfire detected : P0300 Static - no Again this one came up after the reset, drive and re-scan 16688 -163 Cylinder 4 misfire detected : P0304 16685 -164 Cylinder 1 misfire detected : P0301 16687 - 035 Cylinder 3 misfire detected : P0303 Static - no indication on Again this one came up after the reset, drive and re-scan 16686 -163 Cylinder 2 misfire detected : P0302 17772 -163 Cylinder 4 ignition circuit open circuit : P1364 16804 -035 Catalyst system: bank 1: efficiency below threshold : P0420 --------------------- ECU information VAG No: 06A906032JR Component: 1.81 5VT NB AG4 3999 Coding: 00003 WSC: 00066 Readiness test all passed Readiness test after reset, drive and re-scan Catalyst fail Evap sys fail Sec air sys fail Airbag light is always on and the scanner always gets a link error Can i turn off this light? I appreciate any guidance on fixing this vehicle. I don't want to fix by part replacement until the misfire goes away! :) |
Originally Posted by Paul Chapman
(Post 64190)
Hi folks,
My son has got himself an 02 turbo bug as his first car. Its got over 200,000 KM on the clock so has had a good life. Its developed a misfire which the previous sellers had fixed prior to our collection. I don't know what they did and neither do they... I got me a scanner and the below are all of the results held in memory (I then reset all faults prior to doing a 5 km drive and re-scanning): OBDII/EOBD Diag P0300 Random/multiple cylinder misfire detected P0303 cylinder 3 misfire detected P0420 catalyst efficiency below threshold (bank 1) ----------------------------- 17608 -035 KWP 1281 Boost Pressure control valve (N249): mechanical malfunction: P1200 Again this one came up after the reset, drive and re-scan 17559 -163 Long term fuel trim additive air bank 1: range 1: system too lean : P1151 17978 -163 Engine start blocked by immobilzer: P1570 16795 -163 Secondary air injection system: incorrect flow detected : P0411 16684 -035 Random/multiple cylinder misfire detected : P0300 Static - no Again this one came up after the reset, drive and re-scan 16688 -163 Cylinder 4 misfire detected : P0304 16685 -164 Cylinder 1 misfire detected : P0301 16687 - 035 Cylinder 3 misfire detected : P0303 Static - no indication on Again this one came up after the reset, drive and re-scan 16686 -163 Cylinder 2 misfire detected : P0302 17772 -163 Cylinder 4 ignition circuit open circuit : P1364 16804 -035 Catalyst system: bank 1: efficiency below threshold : P0420 --------------------- ECU information VAG No: 06A906032JR Component: 1.81 5VT NB AG4 3999 Coding: 00003 WSC: 00066 Readiness test all passed Readiness test after reset, drive and re-scan Catalyst fail Evap sys fail Sec air sys fail Airbag light is always on and the scanner always gets a link error Can i turn off this light? I appreciate any guidance on fixing this vehicle. I don't want to fix by part replacement until the misfire goes away! :) First posts normally go in introductions else you could get a free fix and we never see you again!!! Bold codes. VAG Error Code: 17608/004608 EOBD II Error Code: P1200 Fault Location: Boost Pressure Control Valve (N249) (Turbocharger Recirculating Valve) - Mechanical Malfunction Possible Cause: Malfunction Indicator Lamp (MIL)(K83) active. Power Loss. Boost Pressure Control Valve (N249) (Turbocharger Recirculating Valve) faulty. Diverter Valve faulty. Possible Solutions: Check/Replace Boost Pressure Control Valve (N249) (Turbocharger Recirculating Valve). Check/Replace Diverter Valve. VAG Error Code: 16687/10593/6352/000771 EOBD II Error Code: P030 Fault Location: Cylinder 3 - Misfire Detected Possible Cause: Malfunction Indicator Lamp (MIL)(K83) active. Lack/loss of power. Hard start. Engine hesitation. Wiring/Connector(s). Ignition system. Fuel injectors. Fuel pressure. Running out of fuel. EVAP canister purge valve. Evaporative emission system. Low compression. Base engine problems. Engine Control Module (ECM) damaged. Possible Solutions: Check/Replace all faulty Wiring/Connector(s). Do a compression test. Read Measuring Value Blocks (MVB) 15 if misfire changes location. Special Notes: This feature search for engine misfire in a specific cylinder. Most of the time the cause for a misfire is a lack of combustion in a cylinder due to absence of spark, poor fuel metering, or poor compression. Tech Notes: The P0303 code means that the cylinder 3 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 3. If the problem persist more tests needs to be done to diagnose problem. Description: When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Engine Speed (RPM) Sensor (G28)/Crankshaft Position Sensor (G28) signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring. As taken from my new As taken from my new EOBD II Fault Codes Software |
Many thanks for the reply. Gives me some direction. i will get onto it and come back if it doesn't go to plan. Thanks Paul |
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