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Old 11-03-2009, 01:01 PM   #1
RyanCSpgs
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Lightbulb VW Jetta 2004 2.0 Several Engine Codes

Asking for a little troubleshooting help. These codes have come on consistently after clearing and then driving again. It started with the vehicle having major lurching hesitation during acceleration from a stop and in 1st gear. I removed and inspected the MAF Sensor, which had no obstruction or other obvious problems then the engine codes began immediately...

The codes:
These include P0445 - EVAP Emissions, P0137 - O2 Sensor, P0141 - MAF Sensor, P0102 - Mass Air Flow. There are 3 other lights like P2400 (no idea what that is)

Anything in common problem between these components? The car has over 60K miles. Thanks
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Old 11-05-2009, 09:10 AM   #2
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Re: VW Jetta 2004 2.0 Several Engine Codes

Just in case anyone is curious, I found the problem. While troubleshooting the MAF power (prior to engine light and codes) I created my own secondary problem; I had blown the 10A fuse (#43) by incorrectly testing the voltage. I'm obviously not a mechanic and made a mistake that added to the Joy of fixing a vehicle. The original lurching and hesitation problem is gone too...gotta love cars that strangely heal themselves!!
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Old 10-10-2016, 03:25 PM   #3
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Talking Re: VW Jetta 2004 2.0 Several Engine Codes

Thank you!!

I had a list of codes and had to rev the engine to start it up. it was just a fuse. turned a $150 dollar fix into a $10.

I still had codes and had to clear them. Going to drive around and see what comes back up

If anyone is interested these are the codes:

P0141 - O2 B1S2
P2181 - COOLING SYSTEM PERFORMANCE
P0130 - 02 B1S1
P0031 - 02 HEATER CONTROL LOW B1S1
P2400 - EVAP LEAK DETECTION PUMP (OPEN)
P0445 - EVAP PURGE VALVE CIRCUIT SHORTED
P0037 - O2 HEATER CONTROL LOW B1S2
P0418 - SECONDARY AIR INJECTOR RELAY A MALFUNCTION
P0102 - MASS OR VOLUME AIR FLOW A CIRCUIT LOW INPUT

I know not all of them where the cause of that bad fuse, but it definetly helped. going to replace the O2 sensors soon..
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