Technical question h22a swap

[gsxrsrad1000]

Need some advice, guidence and anything else to figure out this problem.

The setup:
Acura CL 2.2 with a 93 H22a
Motor ran fine, no CEL lights
I have a intake, walboro 255, and B&M fuel pressure regulator and guage (which I believe might be defective), Field VTEC unit (only Digital RPM and Speed sensor removal hooked up), Stock P13 ecu running off a Jumper harness. All wires were extended and the VTEC, VTEC Solinoid, EGR, can't remember the other one are hard wired to the ECU

Scenario #1
Car has been running fine but over the past couple of months I have been noticing that when I am taking off from a light or from a stop, if I gradually give it gas and take off normally, sometimes the car will putter and feel like its not going anywhere. If I stop on the gas harder sometimes the problem will correct itself, and other times it may carry through 2 and 3rd gear and then correct itself. It sounds almost liek a loud farting noise.

Scenario #2
For the past couple of days, when VTEC kicks in the car back fires and sounds like gun shots, loud "Pop" "Pop", sometimes this will correct itself and vtec will straighten itself out, and other times I have to let off the gas and keep it out of VTEC. It's kinda of annoying because the power of VTEC is not there when you need it.

Advice from people thus far:
Spark Plugs (changed)
Wires (not changed)
Cap and rotor (not changed)
Fuel Filter (changed like 1.5 yrs ago)
Fuel Pressure Reg (Might need a new one) This FPR is made by B&M and uses the existing fuel rail and is universal, so I am not sure if it working right or not)
EGR (cleaned but not changed)

Has anyone with an H22 experienced this problem and if so what things did you do to solve it?

Thanks Paul

[CivicSpoon]

I'm no expert but it sounds like either a fuel or spark problem. Personally I'm thinking it getting too much fuel. The stock fuel pump should have been efficient enough. And what do you mean when you say that the FPR might be defective?

[civickiller]

cap and rotor is a cheap fix, i would do that first.

sounds like a fuel or timing problem

[SiGNAL748]

Check for intake/exhaust leaks. My friend had a problem where his lude would dump fuel heavily due to o2 sensors not reading correctly because there was a huge crack in his header. It didn't throw a CEL because his readings were still within "range" but was still off by enough to fuck up his a/f.

[gsxrsrad1000]

Cool, thanks for all the input, I will also replace wires, one of my wires looked a little worn. Thanks for the input.