fuel issue

[fixkick]

is that filter 20years old?>

the filter packed, and using gauge on its filter, test port. (6mm screw)
the test port is on the filters, input banjo bolt, on end...
so when the filter packs, the test port goes to 60psi
and the fuel rail can be like 20 or less. due to packing full of rust.
the rail needs a $10 fitting to measure there. in my pump page, summitracing sells it.
if the filter packs this overloads the pump, full time.


your pinch test shows the engine is running lean,.
we have only this to go on.
only tests prove what his happening,

all ways posted , to do DIY rail fitting, and the 2267 adaptor shines
http://www.fixkick.com/INJECTORS/Schrader-vales.html

http://www.summitracing.com/int/parts/at.../overview/

adapts metric, to NPT, usa pipe fittings, so any gauge fits.

http://www.fixkick.com/INJECTORS/Schrader-vales.html

so the shop pulled the tank, replaced pump, saw rust and then kept the old filter there?
no way.

the pump tests are very easy.
on the 16v there are many,,, not just pressure regulation

test 1 to 7 are covered here
http://www.fixkick.com/INJECTORS/pump.html#pumptests

my guess, ?
test 4 fails like a dog....

your pinch test is test 6 what we call the shut test ..60PSI and that is the max the pump can do.)

i then do the PFR tests. at least 3 ways. key on, idling and gun throttle. test.
or use my vacuum hand tool, to do many vacuum tests..


fpr test
Static: 36-43 PSI, keyon, not started (say 40) (zero vacuum)
idle: 29.8–37.0 psi (say 34) caused by 20 inches of vacuum)
and gunned to Wide open throttle , the pressure tries to hit 40 psi, (caused by vacuum near 0)


the injector balance tests are way more hard, and tedious.


here is the filter test port being tested. its very easy, test,(depressurize first)

http://www.fixkick.com/INJECTORS/TBI-conn-1w.jpg