OK this is what's going on when I stomp the gas the car hesitates for a sec then takes off. Like if you went to run and as you took off a person grabs your shirt for a sec then lets go. Also when this happens the A/F gauge goes from running really rich to deep into the lean area. It's the nonly time it goes into the lean zone. Under full throttle while cruising or halling *** it goes to stoich, but never into lean. So I can't figure out what would cause this?I've tried increasing the Fuel pressure but the car runs like crap when I do that. Right now it's set a 30psi (40psi w/ out Vac line).The only thing I can think of is to switch the PG7 (89 Teg) ECU w/ a PM6 (89-91 civic/crx SI) ECU and see if that helps.

Here is the scoop on the car it's a 90 hatch STD converted to MPFI. These are the mods- D15B8 block, D16A6 head, D16Y8 Intake Manifold port matched to polished GSR TB (polished), Skunk2 Cam gear, V-racing SIR, B&M FPR w/ gauge, PG-7 ECU (89 teg), N2 neuspeed 4-2-1 header,2.25" mandrel bent custom exhaust(Magnaflow race muffler,high flow cat., resinator).

 

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