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No Oomph.
Intermittent loss of torque. No codes, stored or shadowed. Truck goes flat below 3000rpms, acceleration is poor. Vanos has been rebuilt within the past 10K miles. I've replaced both intake and exhaust CAM sensors.
Again, this is intermittent. Some days she runs like a raped ape, plenty of seat of the pants get up and go. It's very noticeable.
I'm thinking MAF - BavAuto has the VDO/Siemens for about 200 bucks. These don't last forever - and I'm looking at my original one right now. Cleaned it with CRC but really no difference.
Worst case - busted cat internals, blocking flow? Yeesh.
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