Re: Hesitation

["Andrew Mulder" <drewsrocco@hotmail.com>]

Once again, straight out of the Bently Manual.

Hesitation on acceleration.

"Probable Cause"
A. Vacuum (intake air) leak
B. Fuel injector(s) clogged
C. Cold start valve leaking
D. Control plunger in fuel distributor binding  or fuel distributor 
faulty
E. Air flow sensor plate out of adjustment
F. Fuel pressure incorrect
G. Idle mixture (%CO) incorrectly adjusted

"Corrective Action"
A. Inspect intake air components for leaking hoses, hose connections, 
and cracks or other leaks. Repair as required
B. Test injector spray pattern and quantity. Replace faulty injectors
C. Test and, if necessary, replace cold start valve.
D. Check air flow sensor plate movement and, if necessary, replace fuel 
distributor
E. Inspect air flow sensor plate position and adjust if necessary
F. Test system pressure and warm control pressure. If necessary, replace 
control pressure regulator
G. Check and adjust CO

As for my personal experience, I have none in this area yet.
HTH
 

Andrew P.
"87" 16V Rocco


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