Jorsher

Alright, I've posted about this before here, and about 3 times at honda-tech which was of course a waste of time. I only was informed of mispellings and advised to try ---- that I said I tried, because the idiots didn't read the thread.

Vehicle: Stock *** 1997 Civic EX with a D16Y8. ~160k miles

Problem: While accelerating, even at constant throttle, the car seems to bog/misfire randomly through the rpm range. It *seems* to be worse when the car is warmed but I'm not 100% sure. Sometimes when the car is warm it'll start really sluggishly, turns over a few times, then kinda sputters to life. It has set off a CEL for random misfire in cylinders 1 & 2 a total of three times in the past year while starting the car. Eventually, the car starts jerking so bad during acceleration that others in the car notice it and I wouldn't be surprised if people outside can tell. When this occurs I can replace the plugs and it will somewhat remedy the problem for a short time.

What I've Tried:
New dizzy
New dizzy cap/rotor
New plugs (correctly gapped)
New wires
New igntion coil
New fuel filter
Injector cleaner
Checked timing (was perfect, and yes I jumped the service connector and used a timing light)
Only run Chevron gas
Checked compression (got 180s across all cylinders, but I turned the engine over about 10 times before checking so maybe that messed up the readings)
Checked TPS with multimeter, seemed fine.

Like I said, the crap is completely random while I'm accelerating. It doesn't matter if I'm at WOT or partial throttle. Doesn't matter if the throttle is held constant or not. Seems to happen more when the engine is warm.

I am pretty darn close to having all the parts needed for the turbo setup, but I'd like to fix this problem before I throw it on. The car also has a problem with oil...it disappears. I don't have black smoke, so I don't think it's burning oil but maybe the cat is just catching it, I don't know. I think it's leaking from the rear main seal because there seems to be oil drip marks near the tranny, but it doesn't leak when parked.

Any suggestions would be great.

UPDATE: Well I thought that the problem was solved when I replaced the dizzy. The next day when I was heading to work it did the bog/stutter thing... So anyways it's back to how it was. I have no ------- clue what the problem could be. Any other ideas?

whiterice

so you have a stock n/a motor? which motor.

Zeniceguycrx

A random cyl misfire could be anything in teh ignition system starting from
#1 cyl position sensor(Dizzy)normaly throws its own code
roter(look for corosion under the roter)
cap/roter u did(hopefully new)
wires u did(hopefully new)
plugs u did(again)

then check your injectors
use a noid light to check for correct pulse
use a multi meter to check for correct resistance of the ingector between the two terminals

Jorsher

Oh yeah, damn I always forget to l ist what motor, I'll edit the post.

I'll look more into testing the injectors. I have a set of DSM 450cc bluetops, a chipped p28 (borrowed for now), and willems chip burner. Just need a wiring harness and resistor box...will probably just wait until I can stick those in and try them.

ProzacOverdose

Have you listen to your distri. as the car is on? See if you hear grinding noise in the dist. Sometimes when the bearings are worn on the dizzy, the shaft will wobble causing misfires, codes, and even engine stalls. You should know what a normal hum from dist should sound like. If the dizzy is moving...you will hear the grind. Just my 2 cents.

Jorsher

Yeah I'll try and listen for something. I wish I knew someone with the same dizzy, everyone I know has different civics though... I'll try to locate one and try it.

Zeniceguycrx

hang on...........
u have 450's but now resistor box
u might want to look into that if u want the car to run right

Jorsher

I'm not dumb.

I haven't installed them, I just HAVE them. Like I said I have to get a resistor box and conversion harness before I can install them.

I wish it was that simple...but the saga continues

crayze_pnoy

i guess i have the same problem. i have a boosted d16y8. stock p28, stock injectors, fmu. its been boosted for about 6 months now. it ran like a champ, but only recently it started acting the way it does. the bog/ missfire.

Ravage70

try new injectors