richi86

I just got done installing a D16 outa a 00 civic in my 92 i used the 1.5 intake so i didn't have to change the wiring harness and i changed out the dizzys internals and it runs good has plenty of power and its fast but when it idles it sounds like it has a small miss and at low rpms. plugs wires cap rotor all that is new, all cylinders are firing too but what i was wondering is if i need to get 1.6 injectors or find another ecu ?
if so what one ?
thanks

apexi_rsx

what motor are you running? we need more info... if its a y8 all d series injectors are 240cc except the y7. which would make it alil rich

richi86

D16y7 its non v tech out of a 00 civic Se . i was going to use the fuel rail and injectors off the 00 engine but the plugs where diff so i just used the intake manifold and injectors off the 92 D15 it runs good but it sound funny at low rpm kind like a Subaru but if u hold the gas down n bring the rpms up to about 1200-1500 it does not sound like that.

apexi_rsx

its probbaly running rich. and running alil rough. you should get a chipped ecu and someone to make a chip for using the 240cc injectors.

xile6

use the d16y7 block and head only. everything eles is be obd1 from ur 92 and you will be good to go. Your problem is that you need to chip your ecu and tune the ecu for that motor it is a 1.6 and you are running it off a 1.5 map its not enough fuel
I got a y7 in my 93.

D16SiHatch

quite the opposite. if anything he has too much fuel. the y7 engine was designed to be ran with 190cc injectors because it doesn't have as great a fuel demand as other d-series engines. however, as long as he is using the 240cc injectors coupled with the stock d15b7 ecu and intake manifold, there's no reason it shouldn't run just fine.

op: do you know nick probestiel by chance?

richi86

ok thanks ill try that and im kinda new to this kinda thing i mean like doing swaps n stuff like that is there a website i can to go to buy an ecu already tuned and ready to go? and what about the 240cc injectors are those already on my 92 D15 manifold or is this something i need to buy ?

thanks guys

mattliston

HES NOT RUNNING RICH
FALSE INFORMATION

the d16y7 ECU is tuned with 190cc injectors, not the damn motor.

using JUST the block and head, you are perfect. you have a little extra displacement adn a different quench. thats it. worst case scenario you run slightly lean compared to the stock setup under high load and rpm.


your miss is a maintenence issue. its not related to your block and head choice

HondaPartsHero

I agree with above. Did u check ignition timing with a timing light? Change timing or do any other maintenance other than listed above? Any check engine lights?

richi86

no check engine light. it has new plugs and wires and cap rotor ignition pak the plug wires when i push them down they don't feel like they snap on to the spark plugs so im going to try another new set of wires and see what happens

richi86

here is a link to the video i uploaded to you tube so u guys can hear n see what im talking about
http://www.youtube.com/watch?v=j6Q35S0Icqo

mattliston

that sounds terrible.

Needs a valve adjustment, from what I am hearing in the video. new wires wont hurt at all

richi86

well i did a compression check and 2&4 have about 80 pounds and 1&3 have about 60 so idk if i got a valve stickin maybe some dirt in there from it sitting for a while idk but i was told to just drive it for a while longer and c what happens.

D16SiHatch

how many times did you crank it over? with those kinds of numbers it shouldn't even be running..

i understand what you're saying about the injectors being tuned to the ecu, however the whole setup was still designed for that motor. the y7 engine is only marginally larger than the b7 and the static compression only 0.2:1 different. so long as he is using the b7 ecu,intake,and injectors, it should run the y7 perfectly fine. the ecu should be more than capable of making any small adjustments to the air/fuel mix as needed.

and yes i would agree that the miss at idle/low rpm is maintenance related.

mattliston

if its been sitting a long time, things are probably jsut sticky.

run fresh 5w-30 or 10w-30 oil, top off the gas tank, throw in one bottle of cheap fuel injector cleaner, and run teh tank dry driving to work or whatever.
its important to use the entire tank up rather then filling up here and there. that will dilute the cleaner.

come back if teh noise doesnt settle down after a few hundred miles.

But Im like 75% sure it needs a topend adjustment. clickity clack! lol

richi86

the valves are a lil noisy but the cam made it sound louder then it is lol i guess i got stuck rings so i have to find some stuff to soak in the cylndrs and see what happens

mattliston

fresh oil+driving it= unstuck.

driving is the best cure all for your motor. its the only way to completely cycle your coolant and oil throughout the motor.