DOHC ZC Problem Help???
 

Ok I have a 91 crx dx converted to mpfi. With a DOHC ZC. a t25 and a smic I am using ghettodyne for fuel and ignition. Every time i get near 0 vac i go dead lean. I have tried alot of maps some so rich it shouldnt run. Same problem everytime. I DO make boost but the AF gauge will go dead lean.

I have replaced plugs cap rotor wires and Fuel filter. Lets hear them idea's folks. NO I dont know my fuel pressure...

I can supply the bins for the tuners to look at at request.

Re:DOHC ZC Problem Help???
 

Mine does the same ---- at 1/4-1/2 thorttle and also at or around 0 vacuum or boost. I am not worrying about it becuase A/F gauges aren't really accurate.

Re:DOHC ZC Problem Help???
 

Well this one FEELS like i hit a rev limiter..... You can HEAR and feel it is loosing fuel

Re:DOHC ZC Problem Help???
 

UP

Re:DOHC ZC Problem Help???
 

anyone???

Re:DOHC ZC Problem Help???
 

get yourself any pressur gauge at the junk shop to see whats the pressure you are haveing on your iinjectors.
then whats the sice of your injectors?
Maybe at that moment you are out of fuel
maybe you need a extra fuel pomp ???

Re:DOHC ZC Problem Help???
 

450cc's gonna get a fpg tomarrow prolly when i wake up. I work third shift.

Re:DOHC ZC Problem Help??? Come On folks IDEAS
 

up Puttimg FPG on tomarrow getting drunk tonight after work. So whats stock FP at anyway?