Sorry.... a few "teas" and I was all set to launch into a treatise on us "rip-off" mechanics. Then I figured you could stumble around with anecdotal , sometimes costly parts replacements before you set out to learn some real diagnostic procedures.
Your fuel pressure sounds low for a SEFI system though checking the factory spec is the best bet. This doesn't sound like a "pattern" failure as far as any I've seen (climate and general use seem to affect these greatly) but there are many factors that can influence hard starting - including fuel pump performance (either due to poor pump condition or poor current supply).
Just as we do in the field, you need to eliminate each possible cause in turn - it becomes a choice of working from those that are either most likely to occur or cheapest to check (yes, we care about your wallet).
Used to be points and condenser would fix most problems - we'll never see those days again. Now, some diagnostics can approach the price of those late '50s/early '60s cars. In some cases it can be cheaper for me to replace a sensor than it is to test it - what would you have me do?
Sorry to vent and get wordy at the same time. To save money on vehicle repair, consider a course at a local vocational college, read the manual that came with your DVOM (especially the part about checking voltage drops) and make firends with your "rip-off" mechanic neighbour. We're here, we're helpful and we're honest..... just remember that we do this for a living.
