d16y7 engine automatic 2000 honda civic lx. Cars runs weird at startup till it warms up. The check engine light popped on so i read it and says misfires in cyclinder 2 and 3 and possible fixes where dizzy cap witch i replaced like months ago and egr valve but i can find the egr valve to clean. Where is it located?

 

There is no EGR valve on this model(at least we don't have it in Canada).did you replaced only the cap?

 

replaced cap and rotor and new plugs and wires ngk

 

the Y7 doesn't have a EGR valve only the Y5 for the new d-series

 

humm so if theres no egr valve and the cap and rotor are new what would you thinks wrong? it starts up ruff and when its warm it runs perfect doesnt skip at all and theres no difference when driving or skipping at all

 

headgasket do a compression test

 

What code(s) does it throw and how do you know the distributor cap and/or EGR valve would cause the code(s)?

 

have you done plugs? number 1 cause of misfires on a civic.

 

agreed,compression test and leakdown tests would be the next thing to do.

 

Have you done an ignition system tune up?

 

a blown headgasket can cause this? codes where p0300 p0302 and p0303 if i recall correctly. The plugs wires dizzy cap and rotor where replaced 3-4 months ago and i checked the cap and rotor there was nothing wrong there.I just flushed the coolant last week and it was green with no oil in it.

 

i also pulled the plugs they where fine also

 

what kind of plugs did you use?

 

NGK V Power Spark Plug

 

used NGK wires also

 

have you checked ignition timing

 

Those are misfire codes for cylinders 2 and 3. P0300 is just a random misfire.

 

when my head gasket went it would run like crap for the first couple of minutes till it cleared itself out then would run fine .look for excesses smoke at start up (white)

 

it smokes alittle but it burns oil alittle and the smoke is very little and doesnt smell like anything like coolant im gonna have to get a compression check because it did this for 2 days and it went away now so im alittle confused on what it can really be and if its the head gasket its a very small leak.

 

If it's intermittent it's not a head gasket.Check the IAC valve (it could be getting stuck intermittently)and clean the throttle body.

 

i"m gonna clean the iacv this weekend and throttle body

 

did that solve the problem?

i'm experiencing the same thing

 

are you losing coolant you might wanna do a pressure test.sound like a head gasket

 

I hate people that don't post followup solution that fixed there problem