Error code P1128

[PullMeUnder]

Greetings,

My 2001 VW Beetle GL with the 2.0 L engine and a manual transmission is repeatedly giving me a diagnostic trouble code of P1128. The code turns on the check engine light. I am reading the code with my personal diagnostic code reader.

I get error code P1128 "Long term fuel trim B1 system too lean". At one point, I also had P0134 "O2 circuit no activity detected", but I've seen this code only once.

P1128 occurs every 7 to 10 days. Does anyone have any recommendations? Personally, I am tempted to ignore this code as it doesn't seem too serious.

I am having no other problems with the car.

[Bolko]

Check your vacuum hoses for rips; one alongside the intake manifold and 2 more back behind the engine. There should be a sticker near the hood latch that shows the routing.

Also, if you haven't had the MAF changed, go ahead and spend the $60 on one and put it in.