NegativeCamber

Fixeddd I fixxed this problem By changing the Cylinder 1
Injector with a LS injector i need to change all of them but it runs MUCH better
after i change the 3 remaining it will be back to normal.

Former User

How does the rotor look? Misfire can also be caused by a bad coil or igniter unit, so also test them.

Any CEL codes?

Is the ignition timing adjusted to spec?

NegativeCamber

I forgot to say i changed the the coil with a used one but because mine whent terribly bad so bad the car didn't start i didnt chande the rotor
No CEL casue i think the lights are bad cause my SRS doesn't come on and i have removed the SRS idk about the ignition timing thoo7 idnt know what spec is on this car...

Former User

How does the rotor look?

Fix the CEL. Check whether the bulb has been removed.

NegativeCamber

i can't really tell idnt know anything about the rotor but everyone who has seen it hasent said anything about it so im guessing it's fine im gunna try and find away to see if i can read any CEL off it then ima change the bulb

NVturbo

I still believe the timing is off even though you were able to drive the car. That happened to me before. D series motor are sketchy when it comes to getting the timing set right.

As for the 310 injectors, don't bother putting them in if you are running a stock ECU. That will flood the motor and you will have another issue there.

NegativeCamber

oh okay ^ thankss and ima try and bring it to a Hond aonly specialist see if he can diagnose it but until then im testing everything just cleaned the injectors... x_x idk if this car has any performance parts and maybe needs a tune because i bought it like this :/

RuddyDuck

I just bought a 95 honda civic with the risk of not knowing what the previous owners had done to it. I have no idea when and what was or has been replaced on it. It has the D16z6 in it. When I test drove it, it seemed to go fine but then started to misfire about 4 days after I bought it. I checked the plugs and wires, they seemed to be good. I'm thinking either I goofed the connection when I checked the spark plugs or it could be the cap and rotor. How much would a used or new cap and rotor cost?

It did have a CEL when I bought it. I did the paperclip trick and found it was throwing a few codes: (I believe I have the right codes attached to the numbers)

12 - EGR
17 - VSS (I knew about this one)
22 - VTEC pressure valve
41 - Primary oxygen sensor heater

I did read up on the D16z6 and found that it does not have an EGR?! Does that mean the ECU is not for the D16z6? I have been reading up on the VTEC pressure valve. Maybe I could pull off that whole unit and clean it up. I don't know where to start with the primary oxygen sensor heater. Would replacing the ECU with one made for the D16z6 solve anything other than getting rid of the EGR code? Perhaps giving me better gas mileage? (keep reading)

It also is getting really poor gas mileage. Since there is no EGR (which I heard helps with mpg), how do I find out why the mileage crummy? I peeked under the car and found that the catalytic converter had been removed. Could that be throwing the whole system off and giving me poor mileage? (by removing the catalytic converter isn't that supposed to help things out?)

I have been reading these threads and they have seemed to help with what I need to look for. Any help would be great! Thank you!