Forgive me if this is an obvious question but how could I see it when driving. I want to see what happens when I press the gas quickly.

10 minutes ago, gotham22 said:

Forgive me if this is an obvious question but how could I see it when driving. I want to see what happens when I press the gas quickly.

The redneck way is to use a long piece of hose. I took a different direction. I went a 0-30 from this brand: https://www.glowshiftdirect.com/elite-10-color-100-psi-fuel-pressure-gauge/

If you want a cheaper alternative: (Wrong part removed) https://www.ebay.com/itm/176895594944?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200818143230%26meid%3D5a579eb1d3964f638fde15fc3eb8a2e0%26pid%3D101224%26rk%3D4%26rkt%3D5%26sd%3D176367258697%26itm%3D176895594944%26pmt%3D1%26noa%3D1%26pg%3D2332490%26algv%3DDefaultOrganicWebV9BertRefreshRankerWithCassiniEmbRecall&_trksid=p2332490.c101224.m-1

I can't vouch for the quality, though.

Edited yesterday at 01:36 PM1 day by SteveJ

The Good 'ol Boy way as was told to me by Fastwoman. Cost maybe $10? Don't drive around busy streets while watching the gauge, find a nice backroad and there won't be any issues.

49 minutes ago, siteunseen said:

The Good 'ol Boy way as was told to me by Fastwoman. Cost maybe $10? Don't drive around busy streets while watching the gauge, find a nice backroad and there won't be any issues.

I just semi-permanently installed the electric fuel pressure gauge in my car. My job (and helping the parts cannon crowd) has conditioned me to have more diagnostic info readily available.

I purchased this a few days ago. I'll start there

BETOOLL 0-140PSI Fuel Injector Injection Pump Pressure Tester Gauge Kit Car Tools (Master)

Seems unlikely that the engine would use so much fuel when accelerating that fuel pressure would drop. Probably learn what you need to know just blipping the throttle by hand with the hood open.

You could connect to the cold start valve hose. It's basically "on the rail" and sees what the injectors see. Don't forget to block the hole in the manifold. Never mind, no need to remove the valve. Just the hose. Good luck.

Edited yesterday at 07:06 PM1 day by Zed Head

Hooking up a vacuum gauge is somthing else that helps find problem. You can get them at chain stores with loaner programs for free.