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Alright, I've looked through the forums as much as I could and can't find anything to the severity of the issue I'm looking for. (I can find ones with mileage in the high teens, but none this bad) On average, the Beetle (1999 2.0 AEG 109k miles) has lately been getting near 10 mpg when filled up.
The mileage issue has been present since purchase of the car back in October, granted it was a bit higher (12mpg average)but I can attribute the loss to winter blend gas as well as driving style.
To my current knowledge, there are only two DTC's present (I printed them out a couple weeks ago when I had the Bug in my garage to replace a wheel sensor):
P1128 - Fuel Trim Bank 1 (Mult) System too lean
P0341 - Camshaft Position Sensor (G40) Implausible Signal Intermittent
I'll scan again for codes Tuesday when I get a chance, to make sure these are the only ones still.
Could either of these codes (alright I know its probably, no definitely related to them) be causing the issue, and more importantly how can the issue be corrected? The mileage is so bad that it is honestly more economical lately to drive my lifted Grand Cherokee with it's V8, hah...
I suspect from some research that the P1128 could be corrected with O2 sensor replacement, but I'd like a somewhat more definitive answer before money starts to get thrown around at the issue.
I should probably also mention that the car is running fantastically, or at least it isn't bad. It doesn't surge, it doesn't start difficultly, etc. As far as I can tell it's running fine.
Air filter is clean, well clean enough, it's been in there for about 2k miles, but it's no where near needing replacement.
Spark plugs and wires were done (as shown by records from previous owner) at 102k.
As I look through these records now, it seems that at 106k the Fuel Filter as well as Downstream O2 Sensor (I think, I can't read this mechanic's writing) were also replaced.
Thanks guys and gals
The mileage issue has been present since purchase of the car back in October, granted it was a bit higher (12mpg average)but I can attribute the loss to winter blend gas as well as driving style.
To my current knowledge, there are only two DTC's present (I printed them out a couple weeks ago when I had the Bug in my garage to replace a wheel sensor):
P1128 - Fuel Trim Bank 1 (Mult) System too lean
P0341 - Camshaft Position Sensor (G40) Implausible Signal Intermittent
I'll scan again for codes Tuesday when I get a chance, to make sure these are the only ones still.
Could either of these codes (alright I know its probably, no definitely related to them) be causing the issue, and more importantly how can the issue be corrected? The mileage is so bad that it is honestly more economical lately to drive my lifted Grand Cherokee with it's V8, hah...
I suspect from some research that the P1128 could be corrected with O2 sensor replacement, but I'd like a somewhat more definitive answer before money starts to get thrown around at the issue.
I should probably also mention that the car is running fantastically, or at least it isn't bad. It doesn't surge, it doesn't start difficultly, etc. As far as I can tell it's running fine.
Air filter is clean, well clean enough, it's been in there for about 2k miles, but it's no where near needing replacement.
Spark plugs and wires were done (as shown by records from previous owner) at 102k.
As I look through these records now, it seems that at 106k the Fuel Filter as well as Downstream O2 Sensor (I think, I can't read this mechanic's writing) were also replaced.
Thanks guys and gals