trav39562

on my 2000 civic ex when i crank my car up the tach goes to 1000 rpm but when i give it gas the tach goes down to 0 instead of going up. anyone know how to fix this and does anyone know a web site i can go to to see what order the spark plugs are suppose to be my engine is idling very low and my timing is right

Jimster480

ROFL
Your Dizzy has a serious issue. Thats probably why the car isnt running right.
You can go to sparkplugs.com or to advanceautoparts.com and you can find what kind of spark plugs you need. But the standard plugs for your car are ZFR5F-11. You can also use BKR5F-11. But if you are going to change your plugs I recommend E3 E3.48's as you will get a little more power and a little better gas mileage.

http://sparkplugs.com/results_app.as...1&AAIA=1363058

trav39562

ok i got that fixed but now my car still runs like crap my a/f gauge is almost all the way down the lean side and i pulled my plugs out and there real black with carbon. whats is this saying

Jimster480

that means that its running super rich..

trav39562

I have left on my car a 255 walbro fuel pump and an adjustable fpr. I tried turning the pressure down almost till the engine cut off and it was still running bad all the down. I had a cam, intake manifold and a whole bunch of other stuff on it before i blew the old motor up. I took everything off but those two. should i go ahead and take those two off and get it competly stock. that fpr just might not be doing its job the spring may be messed up inside it.

trav39562

well i did watch the pressure drop on the gauge so i dont know. Im super confused.

jjspec

Cam timing off maybe?

Jimster480

does the PSI go down as you adjust the FPR? Becaues if it does than the FPR is fine. The 255 LPH pump wont make the car run rich if the FPR is running right.

trav39562

nope timing is dead on

trav39562

yeah I can see the pressure going down. The only thing I can think of is maybe my injectors got mixed up cause they all look alike. I have s2000 injectors and they might have got put in by mistake. I need to find a set of good used d16y8 injectors pretty cheap

Jimster480

Do S2K injectors even fit in the car properly? I would figure that they used a different clip or something? How big are S2K injectors anyway?

trav39562

a guy gave them to me a while back and he said they s2000. They look the same as the civics and they do fit in the socket and the clips are same. I forgot what size they are I wanna say 320cc

Jimster480

thats not really big.

trav39562

im open to any suggestions

Jimster480

wats ur fuel pressure at? and what ECU are you running?

trav39562

right now its at about 45 psi i am running a stock ecu now

trav39562

would a o2 sensor cause it to run rich

Jimster480

yes.

Integra4lyfe069

lol o2 sensors is what mixes your fuel with air.

Jimster480

no its not. That happens in your intake manifold at the injectors. The O2 simply senses oxygen content in the exhaust so that the ECU can richen or lean up the air fuel mixture.

awdgsx96

What kind of o2 sensor is it? Wideband or narrow? Black would indicate running rich like somebody already said. The narrowband sensors are nothing but a light show.

And yes, a bad o2 sensor could cause you to run rich. It could be bad just from being so old, it's probably coated with junk causing the readings and adjustments to be off. Try a new one from ^ www.sparkplugs.com for like $45. And if it doesn't fix the problem 100%, at least you have a new o2.