Hey, i have a d16z6 head on a d16y7 bottom end in my 90 honda civic hatch ive converted it to mpfi and added vtec and its wired up to a p28 and theres no codes flashing when i start it up it runs horrible from 0 - 2000 rpms when i hit 2100 and up it runs normal any ideas? the timing is dead on and the only thing i have left to check is the sensors but im not getting any codes thrown so im still kinda stumped.

thanks alot

Derek

 

Have you changed the sparkplugs, plug wires, distributor cap, rotor, and fuel filter yet?

 

yes i have replaced everything but the sensors and tried 3 diff dizzy's

 

What distributor are you using? Which one's have you tried?

 

i have 3 of them all out of the 92-95 civic's and del sols i have two hatch with z6 swaps

 

Check cam timing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fourthgenhatchB17 &raquo;</TD></TR><TR><TD CLASS="quote">Check cam timing. </TD></TR></TABLE>

yeah I think so also

 

i have an adjustable cam gear and its right on so its not the timing

 

just because the cam gear is right, doesnt mean that the cam is set right with the timing belt.

its either a distributor (wich you have ruled out) or cam timing.

 

cam timing is off....make sure eveything is at tdc