Hi there,
I have a 2001 E-430 Sport that just failed my Illinois emissions test. Car has just over 66K miles on it. The system report came back with codes P0170 and P0173 Fuel Trim Malfunction Bank1 and Bank 2. Interestingly enough my CEL wasn't on, but after a bit of investigating, it appears that the lamp is burned out (doesn't light with the ignition key turned to the right). Just my luck, god knows how long I have been driving around like this.

Car runs fine or so it seems but I need to get this resolved. From searching the forum it appears that others have had similar issues on different models (MAF sensor) and I was wondering if this could be the same issue on my car. Any thoughts?

Thanks,
Len