OK the cold start injector is either not there or very hidden, but I think
the engine starts fine.
I also understand that the engine runs fine after it warms up.
Power to the 02 sensor might be from the fuel pump circuit. Fuel Pump off
= 02 power off. Not sure on this though!
Now the engine could be running either very lean or very rich and a quick
smell of the exhaust will tell you if it is running rich when you first
start it. If it is rich then it could have a weak spark and the plugs are
When it is at normal operating temperature has the CO been adjusted?
You could try adjusting the CO bolt 1/2 turn CW to richen mixture and see if
that makes a difference.
I still think it could be a vacuum leak(s) at the intake manifold boot or
the injector seals which would cause a lean condition until the rubber warms
up and expands.
Now I did not mention that the timing could be off too. Timing belt and/or
I guess I would start at the basics and check the timing belt, ignition
components including distributor timing, fuel delivery, etc.
Did you do the major engine service?
(One out of many daves)
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