Steve Brotherton,

Drove with my MM hooked up to the EHA harness.

Key on : 10ma
Warm engine idle : 0ma
Accel : -2.5ma (2000rpm)
Decel : From -2.5ma, to 5ma, -50ma, then 0ma.

Seems like I'm screwed.

By the way, having sprayed carb cleaner onto the underside of the FD on Saturday improved performance and fuel mileage slightly improved.

This evening, problem cropped up again.

Severe hesitation at accel, smoking and bogged down performance (flooding).

Pulled aside, waited a little, did the carb cleaner thingy (3 short squirts).

After 15 minutes, drove off and performance much better, but still smokes on hard acceleration.

I noticed a major difference after the cleaner trick is that the engine feels more free-revving immediately after application.When it starts bogging down, the accelerator feels heavy in that the car will not rev up easily.

Mind you, I'm driving with the EHA off and mixture leaned till idle is rough.

Correct me if I'm wrong, but isn't the FD plunger lifted proportionally to the deflection of the air flow sensor plate?

It seems like the plunger is sticking - it stays in the upper position even though the air flow sensor plate moves back to basic position upon release of the accelerator pedal.

I have read from my Bosch fuel system notes that the control pressure opposes the force that is applied to the control plunger by the air flow sensor plate pressure.

Hence, if my regulator is new, it would seem that my fuel distributor is toast!

Or is my plunger gunking up?

But if so, I think it would have been resolved by the first application of the cleaner "trick".Now, I have applied the cleaner twice since Saturday.

I wonder what the relation is between the cleaner "trick" and the fuel distributor plunger?

sbourg - about 2 weeks ago, you posted your guess that this problem "sounds like a sticking control plunger in the fuel distributor - not returning all the way to idle rest".

At this point in time, I think this is the problem.

stevebfl - if this is the case, is it the point of no return for my FD?I am on the verge of bleeding it, taking it out and soaking it.Would this do any good?

Appreciate any thoughts you guys may have.

Thank you.