I Have a 1992 camaro tbi injecto rs but it turn on but went I accelerate the injection goes down it does inject but less on low rpm it dont accelerate it just try to turn off like is miss fire or something because it don get enough Gas IT DOES INJECT SPRAY BUT ON LOW RPM ON HIGH TOO BUT LESS GAS it dont run good cuz it dont accelerate what you think is wrong...

 

Low fuel pressure from a clogged filter, broken fuel pressure regulator spring, dying pump or torn fuel hose between the sending unit and pump come to mind.

 

The fuel pump is new and filter too and what can I check

 

In low rpm everything good bit on high rpm its star acting like is gone turn off

 

The fuel pressure Should be 9-13 psi, but I have found these TBIs run best at 12-13 psi even stock.

http://www.autozone.com/test-scan-an...er/232719_0_0/

 

The last TBI regulator spring I removed from a car running about like yours with only 5-6 psi of fuel pressure on the gauge looked about like this. The one I had was only in 3 pieces, but same effect. Weak fuel pressure. It would idle perfectly but had long cranking times and fell on its face at any throttle position.

 

I just try to hear the fuel pump today and it sound like everithing work even went it happens but idk
I even press the fuel line but went I accelerate I feel like the gas goes down SORRY TO MAKE MANY QUESTIONS im new into this fuel things lol

 

So you think t he e regulator spring is bad is making all this?
Or if I remove it it would help...