Compression Ignition Addict
Join Date: Apr 2012
Location: Stratford, Ontario
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The best feeling in the world
I've owned my E99 powerstroke for about 6 months and was always disappointed with the performance. I got smoked by a mostly stock 12 valve even. Skip to end to avoid the story..... There is useful info.
I was also getting roughly 8mpg. So I tested all the usual things. Fixed some boos leaks, no soot on the up pipes etc, and still crap mileage but my power did seem to get a bit better.
Last week I end up taking my buddies E99 out for a run and his turbo sounded so different than mine. His like a turbine at his boost, mine like you had an air line just blowing off.
On a whim I hooked up a 15 psi boost gauge borrowed from a different buddy and at WOT I was seeing 8psi. Okay there's a start I thought. Couldn't find the culprit until work last night. One of those sudden, and rare, moments of brilliance.
I found my EBPV acuator rod not connected. The EBPV has been unplugged since the previous owner. So it never fully came on to cause me to look. The butterfly could freely turn however it wanted. In my case about 1" from being fully open, causing my issues
So if you are having crap mileage, no power, and think your tranny is on it's way out because it doesn't like to hold overdrive, and your exhaust hurts people's ears under boost with a stock turbo. It may just be a free fix like that!
Excuse me while I go play with my new truck, as it feels like I just added 100hp.