Lumpy Idle M30 B35 Engine

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RonDwyer
Posts: 470
Joined: Sun Mar 01, 2009 7:01 pm
Location: San Francisco Bay Area

Post by RonDwyer »

Well, the saga continues, at least it is fun. Anyway, I put a new cap & rotor on, it ran about the same. I pulled off individual wires and at idle was able to verify they all had some effect on the running. Funny, it has the same shake throughout the RPM range. So I decided to pull the fuel rail as part of the last thing for possible vacuum leaks and discovered every single injector tip was soaking wet. Looking into the manifold holes, the tops of the intake valves were all wet with gas.

My plan still is to get a long hose and hook it to the high pressure feed from the fuel pump and rig up a connector plug with a push button to individually fire the injectors to see the pattern. I could go pick up a fuel pump at the boneyard and rig up a system to suck in pure techron to clean them, sounds a bit safer to burn my driveway down than to risk a fire near the car in the garage.

But the wetness of everything has me piqued. Am I looking at faulty pressure regulator or did something on my wiring harness somehow tell the injectors to fire too much?

I didn't do the plug wires yet. And the plugs, WR9DC's are all new. Car hasn't left the driveway yet. Getting anxious!

BTW: What mufflers have people used on this conversion? The 3.0 has smaller pipes than the ones exiting the cat.

Guinness time, no more parts to feed it today.
Ron Dwyer
Milwaukee, Wi

14 Audi A8L TDI
03 530i
08 F150 4X4
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