[T3] Hesitation, Bogged Down, Vibration - It's All here!

[Chris Picknally <bluesky@verdeonline.com>]

Ok Jim and everyone in type 3 land.

70 Auto FI square - What's Going On.

You have read the posts in the past with my car and you all have been so
very helpful with my car's problems. Help me put this puzzle together!

Engine Rebuilt 1 year ago.

Had a problem with getting bogged down after Highway run and sitting at a
light Ð still I have this problem. Some recommended that my temp sensor is
faulty and I am getting too lean

Had a hesitation problem as you just start to accelerate from a standing
start Ð Vacume advance checks out ok Ð fixed it with an adjustment to the
pressure sensor I know Taboo but hey it worked and solved the problem.

Now I try and fix an intermittent missing that developed after running
injector cleaner though my system Ð pulled the injectors to blow out,
Runs much better does not act the same.
Changed the exhaust system to a 4 tip empi for the summer.

Current Running Condition Ð Vibration Vibration - changes with RPM & Load -
Goes away most while over 50 mph - Went on a 20 mile hwy run and that bogged
down, "slug at the light" came back Ð Still have a Vibration. Seems to have
power while running ÐÊnot completely missing a cylinder or the like.

Some more puzzle pieces Ð
    Checked the Voltage at the batter = 13.15 at idle, Fast Idle about 14.3
- Changed the voltage regulator 6 months ago No not a genuine Bosh but not a
cheap one either - got from an alternator/electric place.

    Noticed that I have 2 different Injector styles two with a yellow tip,
two with a black tip - Placed one of each in each intake side - did a flow
test with vials - all measured the same amount during a 20 second period.

    Timing has been set to a slight advance - always has to help offset the
original hesitation. The rebuilt engine was bored at the ever so slightly
larger size - told I would see a tad bit of more power on the Hwy. (don't
remember the size) 

    So guys - All you experts - Anyone - I am tired of a years worth of this
that and another. What is up with my car? Is it the pressure sensor? what, I
just want to enjoy the car. I feel like crossing over to carbs - it's that
bad! Help me. I don't have anybody that I know who knows the FI system
enough to like it, let alone knows how to really tweak it. I have heard of a
dealer up in Flagstaff AZ that has the old check system and a mech that
knows how to run it, looked into it about 2 years ago. I am a very capable
mechanic on my own but I feel as though I am chasing a ghost.

HELP Me get this straightened out once and for all - I'm At you mercy.
Besides I know you would all like to get me off your list once and for all
as well.

Chris Picknally, Cottonwood AZ

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