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Old 04-15-2026, 06:07 PM
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BillC BillC is offline
 
Join Date: Aug 2008
Location: Silver Spring, MD
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It's been a while since I've done any work on my 914, but something just happened that has me a bit excited.

If you dig back into this thread a ways, you'll find where I was complaining about not being able to get the car to idle properly using the original D-Jet system. It turned out that the problem is when the PO had the engine rebuilt, they installed a carb cam which isn't fully compatible with D-Jet -- I can get it to idle reliably, but only at 1600 RPM, which turns out to be remarkably annoying.

About a year ago, James at PMB Performance contacted me about a drop-in/bolt-on modern fuel injection system they were developing for 914s. Since it's an MS3 based system, it would cure all my idle and drivability issues. And ... this arrived yesterday:
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Inside the box is all of this:
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This is the first system to be installed outside of PMB Performance, so it will be a bit of a learning curve for both me and them.

It turns out that this system isn't quite a bolt-on, since I need to weld an O2 sensor bung onto the exhaust if I want close-loop operation (which I do). The system will apparently run just fine in open-loop, but I want all the modern bells and whistles.

Things are a little busy at the moment, since it's the start of driving/racing season, but I will update this thread as I make progress. The plan is to take lots of pics and detail the process involved.
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