Fuel pressure corolla 2015

[engnr.mubashir]

First photo shows pressure after 2 to 3 cranks.
2nd photo shows pressure drop after exact 1 hour.

[capsat]

are you testing pressure at pump under the rear seat.??

i'd recommend to test at the injector rail - under 3 conditions. at key turn, at crank, at idling & throttling.

at key turn, at idling it shall remain constant, at throttle expect bit variation to correct that if worried, please change only purge valve inside the pump., if available.

@dani_kk @Xulfiqar @VCheng @ser_gtr @rajaatta @nomi01 @syncview

[Xulfiqar]

Did you just test fuel pressure with the high side ac gauge of the manifold comrade?

[rajaatta]

Addios comrade you put potato masho in place of Granada.
Now we should wait for the blast to happen from a potato masho.

[rajaatta]

Brother good effort but the gauge is not designed for the said job there is a lot of air pumped into it.
So try to find a good pressure gauge and test it again.
Rest current seems the pressure is fine if it holds for this long

[Xulfiqar]

Imagine ac performance when some poor soul uses this on a car.

[dani_kk]

I was slack jawed when I saw the gauge.
My nerves are giving me electric shocks. I can feel Txv in my heart and my ears are hearing the phisssssshhhh sound of refrigerant being purged out of expansion vessel.

[dani_kk]

Get it tested by fuel pressure gauge. Share the result.
Start the car and instantly needle should jump to 40-50psi and once u try to rev it, needle should increase slightly and come back to initial position where it is steady. And anything above 35psi is good reading.

[rajaatta]

It happens but we should appreciate some one has used some tools to get the readings.
At least some one tried . It will improve by time let's see I hope no one uses this gauge for vacuuming or refrigent refilling.

[sardarg]

bhai jan ap tamam techie doston sai sawal hai.

yeah gauges to AC wala use karta hai, keya iss gauge sai fuel pressure check kara ja sakta hai. is the reading and testing method correct just incase if we do not have access to other pressure gauge.

[VCheng]

There is usually a port for attaching the pressure gauge, or a specified location for a pressure reading, for such systems. Any other location will be off specifications anyways, or at least of unknown accuracy.

[capsat]

please give a little space to gentleman acknowledge the effort, at least he tried to perform a DIY with the nearest available tool. i remember doing the same few years ago before getting a proper gauge and few extra attachments.

[VCheng]

Of course, I always appreciate such efforts, but please note that sometimes erroneous data is worse than no data at all. If anything is worth doing, it is worth doing well.

[dani_kk]

Less accuracy and inaccurate readings will be obtained so buy a single pressure gauge

[engnr.mubashir]

I think that requires in line connections can I do this with this gauge ?

[engnr.mubashir]

Yes

[engnr.mubashir]

[engnr.mubashir]

Low side is of no use and high side knob doesn’t rotate so I decided to utilise it for that purpose.

[engnr.mubashir]

No port/schrader valve in PKDM cars even bot available in most of JDM cars.

[engnr.mubashir]

Do you got any practical proofing that shows double gauge will read inaccurate reading ?