Check Engine Light Turns into Big Job
07-19-2007, 05:38 PM
#1
Check Engine Light Turns into Big Job
I had an intermittent check engine light. Light would be on for a day or two then go off. It usually went off after re-fuel or releasing pressure by removing gas cap. Dealer did the following work, under warrantee (20,000 miles on vehicle):
"C/S MIL ON RAN GFF AND FOUND DTC P2293 FUEL PRESSURE REGULATOR 2 PERFORMANCE. INSPECTED FOR ANT TSB'S RELATED TO DTC AND FOUND TSB2013147/4. RELEASED VEHICLE FUEL PRESSURE BY REMOVING FUEL PUMP FUSE AND RUNNING VEHICLE UNTIL IT DIED. DISCONNECTED VEHICLE BATTERY AND REMOVED HIGH PRESSURE FUEL PUMP AND FOLLOWER AND INSPECTED WEAR, FOUND FUEL PUMP FOLLOWER AND FUEL PUMP AND CAMSHAFT LOBE ALL DAMAGED. REMOVED FRONT BUMPER COVER AND PUT LOCK CARRIER IN SERVICE POSITION. REMOVED TIMING COVER AND TIMING BELT, IGNITION COILS AND HARNESS, VALVE COVER AND CAMSHAFT ADJUSTER COVER AND CAMSHAFT ADJUSTER WITH CHAIN. REMOVED FRONT CAMSHAFT SPROCKET AND REMOVED BOTH CAMSHAFTS. REPLACED INTAKE CAMSHAFT AND RETIMED AMD REINSTALLED BOTH CAMSHAFTS. REINSTALLED ALL OTHER COMPONENTS RECONNECTED BATTERY GROUND STRAP AND RESTORED ENGINE ELECTRICAL SYSTEMS. CLEARED ALL FAULTS AND SET VEHICLE READINESS. ROADTESTED TO VERIFY REPAIRS AND FOUND VEHICLE IS NOW OPERATING PROPERLY AND WITHIN SPECS FUEL PUMP VC- HITACHI CAMSHAFT VC- NONE VISIBLE."
My car was out of service for 8 days. Dealer provided an excellent loaner (brand new Q7) but it's good to have my car back. So, if you get a CEL, you might have this problem. Looks like this would be a lot of $ if not under warrantee.
Regards,
Mooselook
"C/S MIL ON RAN GFF AND FOUND DTC P2293 FUEL PRESSURE REGULATOR 2 PERFORMANCE. INSPECTED FOR ANT TSB'S RELATED TO DTC AND FOUND TSB2013147/4. RELEASED VEHICLE FUEL PRESSURE BY REMOVING FUEL PUMP FUSE AND RUNNING VEHICLE UNTIL IT DIED. DISCONNECTED VEHICLE BATTERY AND REMOVED HIGH PRESSURE FUEL PUMP AND FOLLOWER AND INSPECTED WEAR, FOUND FUEL PUMP FOLLOWER AND FUEL PUMP AND CAMSHAFT LOBE ALL DAMAGED. REMOVED FRONT BUMPER COVER AND PUT LOCK CARRIER IN SERVICE POSITION. REMOVED TIMING COVER AND TIMING BELT, IGNITION COILS AND HARNESS, VALVE COVER AND CAMSHAFT ADJUSTER COVER AND CAMSHAFT ADJUSTER WITH CHAIN. REMOVED FRONT CAMSHAFT SPROCKET AND REMOVED BOTH CAMSHAFTS. REPLACED INTAKE CAMSHAFT AND RETIMED AMD REINSTALLED BOTH CAMSHAFTS. REINSTALLED ALL OTHER COMPONENTS RECONNECTED BATTERY GROUND STRAP AND RESTORED ENGINE ELECTRICAL SYSTEMS. CLEARED ALL FAULTS AND SET VEHICLE READINESS. ROADTESTED TO VERIFY REPAIRS AND FOUND VEHICLE IS NOW OPERATING PROPERLY AND WITHIN SPECS FUEL PUMP VC- HITACHI CAMSHAFT VC- NONE VISIBLE."
My car was out of service for 8 days. Dealer provided an excellent loaner (brand new Q7) but it's good to have my car back. So, if you get a CEL, you might have this problem. Looks like this would be a lot of $ if not under warrantee.
Regards,
Mooselook
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07-21-2007, 11:41 AM
#8
Wow, it's lame that the service writer didn't give you an explanation.
Even though it was warrantied, I would demand to know why I had to give up my car for 8 days. I have trouble believing that they didn't have some kind of inkling as to what happened.
07-23-2007, 09:18 AM
#10
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Supersedes Technical Service Bulletin Group 21
MIL on (DTC P2293 in ECM)
15 07 02 June 18, 2007 2013147/4. Supersedes Technical Service Bulletin Group 21 number 06-04 dated Dec. 11, 2006 due to addition of description of one of the main conditions that can result in the storage of P2293.
Model(s) Year VIN Range Vehicle-Specific Equipment
A3 2006 - 2007 All
A4 2005 - 2007 All
A4 Cabriolet 2007 All
2.0TFSI Engine
Condition
MIL on. The following DTC is stored in the ECM
data memory:
? P2293 (Fuel pressure regulator 2 performance) at times in combination with:
? P0087 (Rail fuel pressure too low)? P1093 (Fuel trim 2, bank 1 malfunction)
Technical Background
Excessive wear of the cam lobe (in the intake camshaft) that drives the high pressure fuel pump. This limits the maximum pump piston lift, causing fuel rail pressure fluctuations. The wear on the cam lobe also leads to wear in the base of the high pressure fuel pump cam follower.
Production Solution
Increased surface hardening of the camshaft lobe for the high pressure fuel pump.
Improved intake camshafts have part number 06F 109 101 B.
15 07 02 June 18, 2007 2013147/4. Supersedes Technical Service Bulletin Group 21 number 06-04 dated Dec. 11, 2006 due to addition of description of one of the main conditions that can result in the storage of P2293.
Model(s) Year VIN Range Vehicle-Specific Equipment
A3 2006 - 2007 All
A4 2005 - 2007 All
A4 Cabriolet 2007 All
2.0TFSI Engine
Condition
MIL on. The following DTC is stored in the ECM
data memory:
? P2293 (Fuel pressure regulator 2 performance) at times in combination with:
? P0087 (Rail fuel pressure too low)? P1093 (Fuel trim 2, bank 1 malfunction)
Technical Background
Excessive wear of the cam lobe (in the intake camshaft) that drives the high pressure fuel pump. This limits the maximum pump piston lift, causing fuel rail pressure fluctuations. The wear on the cam lobe also leads to wear in the base of the high pressure fuel pump cam follower.
Production Solution
Increased surface hardening of the camshaft lobe for the high pressure fuel pump.
Improved intake camshafts have part number 06F 109 101 B.