I have a 91 honda Civic it has a 92 1.6Y7 with a Vtec head I have converted the car from DPFI to MPFI and from OBDO to OBD1 I have a 7.5 Lb flywheel and a stage3 puke clutch I have MSD power pack and coil I have poly mounts and DC headers with a Magnaflow exhuast system. I have a problem with my acceration when I give my car gas it accelerated to about 3000rpms and bounces back to about 2000rpm constantly I have changed the throttle body and the TPS and the AIC and the Vacuum box it still has the same problem. can anyone answer my Question?.

 

What ecu are you using?

 

I am currently using a P06 but I have a P28 on the way I ordered a chipped P28 with a 10000 Rev limit and my Vtec is going to kick on at 4500 and it has a H22 map sensor and a couple other things that I would have to look up to tell you

 

Ok, so you are using an OBD-0 non-vtec ecu on an OBD-1 conversion with avtec head? Are you still using the resistor box for the injectors? What injectors are you using?

 

I have the OBD1 ECU thats a P06 it just doesnt have Vtec isnt that the only diffrence? and I have the OBD1 injector box Does it matter that my intake is OBDO do I need to swap for a Vtec intake or OBD1 and I just have the OBDO injectors with the OBD1 injector box