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fuel feed problem, help!
For a couple months now I've been experiencing an intermittent fuel feed problem.
When absent the car runs beautifully.
However when present the effect can be anything from a slight hesitation (when accelerating or at constant throttle) to violent bucking (especially when accelerating from a stop).
Sometimes the engine even cuts out when at a stop if I am not constantly on the throttle to goose it when it starts to stumble.
A by-product of this problem is occasional backfires and a very acrid, over-rich mixture smell from the exhaust when starting up again after it cuts out.
Everything I can think of has been covered:
-fuel tank resurfaced 10 months ago
-fuel lines and trigger points replaced at the same time
-throttle switch is new
-recently fine-tuned by 914 specialist
-recently replaced fuel filter
-rotating gasolines from one fill-up to the next
Unfortunately when I had it serviced recently the problem was dormant and so my mechanic was unable to address the issue
specifically.
Where could the problem possibly lie?
Any and all suggestions hugely appreciated-this problem is driving me batty.
Many thanks.
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