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Originally Posted by RhysM
Super super helpful! exactly what I was after. I have a full testing set, so next step is to test at various points. Was getting 2.6bar system pressure at the WUR/Head so something is amiss!
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30 year old fuel components. even if you do get it running correctly it will be short lived... as fuel passes through it will dissolve the crud intermittently clog stuff. fuel leaks and so on lots of frustration and confusion second-guessing everything . you will replace or clean a part eventually it will muck up again. As previously mentioned i went through the same thing. On a positive side you will learn every square inch of that car chasing each new issue . and become very very familiar with how each component effects the next.
a wide band afr gauge is a must you don't want to think its running great and have it be super lean. They run great when they are lean, Then not so good ... if you do eventually rebuild and replace everything fuel related . when you go to set it up you will be like wow it all makes sense and it works .
does your car have the three pipe fuel accumulator? if it has a small leak it will blead directly into your return, reducing fuel pressure and you wont know it. The easiest way to test it is remove and dry it out put a balloon on the bottom port and run some compressed air through the supply 100psi and use your finger to close off the outlet side the balloon should not inflate.
i saw this post yesterday and have been super busy lately and haven't driven my car in a few weeks. took the old girl to work this morning , The turbos sure like the cooler weather.
good luck keep us informed of your progress.