court

civic eg has no codes, stutters from 1.5k- 4k rpm especially if accelerating slow, bogs if i floor it. when feathering the throttle, it back fires. no smoke.
put a new o2 sensor in and it turned black

im thinking too rich,

any ideas?

court

IACV is clean

grumblemarc

iTrader: (4)

Timing?

court

i havent timed it, but ive adjusted the dizzy and it still stutters no matter what position... sounds ghetto, but its what i have to work with. I'm replacing the cat next and then going from there

grumblemarc

iTrader: (4)

There's mechanical timing as well. Check both.

easy_vtec

I was backfiring as well (d15b7) check your plugs make sure there gapped right!

grumblemarc

iTrader: (4)

That brings up this question. When did you last do a FULL tune up?

easy_vtec

What he said!

Plugs,wires,cap/rotor, is your radiator full? Loss of pressure may cause bogging keep trouble shooting lose ground wire? Don't give up!

court

changed the plugs, it runs a little bit smoother, but the plugs are fouled with fuel... it seems its dumping fuel in. I changed it to a ek DX header/ cat and now it blows smoke .... Im guessing from fuel saturation

I have NO codes.

grumblemarc

iTrader: (4)

Why? Now would be a good time to mention what else is not stock to this car. maybe a little back story as well. Actually should have done this in post number 1.

court

I changed the header because its a known good cat... the one before is not known if its good.

motor is bone stock

i think my problem is specific to fuel dumping. it gets horrible gas milage as well --- probably due to the fuel dumping

court

put another stock P06 ecu in and same symptoms.

why would this thing be running SO RICH

Slacker93eg

I've been having the same symptoms and I can't adjust the timing either so I move the dizzy around. I gotta get a lower timing cover then Im timing it asap. I'm like 98% that's what it is

court

you think its a timing issue?

I have adjusted my theory to it being a Spark issue.
I have new plugs and cap

maybe the coil may be dying

grumblemarc

iTrader: (4)

Do a complete tune up. Check BOTH ignition and mechanical timing. What color is the spark?

NACvicSi

The bogging sounds just like my old Del Sol when I had the timing belt a tooth off.

court

it looks like the timing is on. I have the white mark lined up with the pointer and the "up" is lined up with the distributor ear, so my guess is its a bad dizzy

grumblemarc

iTrader: (4)

And the mechanical timing? You seem to be avoiding that like the plague.

court

i dont have a timing gun to time it, and i dont think it would act so horrible no matter how advanced or retarded i moved the dizzy

grumblemarc

iTrader: (4)

Post #16 seems to suggest otherwise. You don't need a timing gun for mechanical timing. Check the FAQs for How-To's.

And AGAIN, when was the last FULL tune up you've done. Plugs and wires are not a full tune up.

court

post #17 discusses how I lined up the crank with the cam

grumblemarc

iTrader: (4)

Last full tune up?
This is like pulling teeth.

court

to give you an idea, the last time the car was driven was about 2 years ago

grumblemarc

iTrader: (4)

Jeez. Is the old gas still in the car as well?

court

yes, however, the car ran that way before