on my d16z6 swap my car is ppushing so much fuel it is flooding the car out so it wont start so much that it has hydro locked and washed the rings out and forced fuel into the pan, and im not sure why it is only doing it on these 2 injectors i changed injectors and measued the ohms on both sets and the both measure out to what the haynes book says they should..???????? could it be a regulator ? but wouldnt that cause them all to push to much fuel? all my vacume and returns lines are hooked up and have no leakes as well.

 

My first thought would be your harness. Check to make sure the wiring is in the correct order.

Did you eliminate the resistor box?

OBD0 INJECTORS
1 brown
2 red
3 white
4 yellow

OBD1 INJECTORS
1 brown
2 red
3 blue
4 yellow

1-4 coincides with the cylinder order.

 

check your injector o-rings.. they may have twisted up when u put them in.
lube them up with a light sope or oil before u put them in.

 

The ground wires for the two problem fuel injectors may be shorting out somewhere beween the injector clip and the ECU connector. Test those two wires for a short using a multimeter.

 

hey thanks guys , yes the person before me elminated the injector resitor box but that doesnt mean it was done correctly(nothing else has been)., ill check into how to elminate the box and the other things mentioned .

 

ok so i looked into how to elminate the resistor box and it has been done already coming out of the round plug on the left side off the car, the tied the 4 red wires togeather in with the one yellow that is sopoosed to be hot. however i have another problem. the round plug on the engine harness compared to thge chassis harness doesnt seem to line up color to color, when i plug in in my yellow wire isnt hot and none of them line up correctly, and when i got down the my injectors the only hot wire is the brown wire? wtf is going on here? any ideas

 

ok i just finished a z6 swap in a 91 ef as well. im also having injector problems. but i think my injectors were clogged because it runns alot better. is the car has been converted from dpfi to mpfi and obd0 to obd1. you should hvae a "power block" and its basically a dead end plug on a obd1 harness with all yellow/black wires. make sure you have one of those wires going to A15 on the ECU. also measure volts going to the injectors. since its no longer obd0 the injectors require ~12v

 

no my car was oringally a si so it was already mpfi. i dont have power to the injectors is what im saying i only have power to the brown ground wire

 

This^ would tell you that your power and ground wires in the injector clip(s) is likely reversed.

 

yes and no the whole harness is all fubar its just a matter of sitting down with the hayness manual now because i have injectors that are both hot then some dont have power at all because the messed with the rounnd plug that goes into the chassis on the left side so now nothing is correct.

 

i just bought a ef with z6 swap starts and idles fine. was running on 1 and 4 so i checked sparkplugs and 2 and 3 were fouled out smelled like gas. i got plugs now 2 is firing fine but 3 still not changed. i have a injector code and iat sensor. hooked multimeter to inj3 plug and no power what so ever. also checked ecu pins and seems there is no wire running from inj3 pin on ecu (a5). i thought about cutting blue wire from inj3 and running my own wire directly to ecu.
PLEASE ANY SUGGESTIONS ARE APPRECIATED before i ghetto rig it