Nothing Below 3,000
 

Here is the situation my car has a misfire below 3,000 rpm
but only sometimes. It seems to kinda of phase in and out.
Anything above 3,000 rpm or so and it runs like a champ.

My car:
standard 99 civic ex 186,000 miles
y7 motor 60,000 miles
y8 intake manifold
y8 trans
safc
obdI conversion

Re:Nothing Below 3,000
 

:o :o :o :o you are in your car 24/7 huh?
sorry im no help tho

Re:Nothing Below 3,000
 

have you adjusted anything on your safc?

have you had the timing belt changed recently?

Re:Nothing Below 3,000
 

Have you even taken out the plugs?

Re:Nothing Below 3,000
 

THE PLUGS MAN, THE PLUGS GODDAMNIT.

what ecu are you running? is it chipped or anything of the sort? is your base timing set?

Re:Nothing Below 3,000
 

Alright I have (before this post) changed the dizzy cap and rotor, plugs, injectors, plug wires, and o2 sensor. I have also checked the compression twice and I have 170, 175, 170,
165 starting from the dizzy going right. I have also checked the injectors to make sure they are functioning properly.

Warrick: I am running a po6 unchipped

I was playing with the car today, after I just installed my secound brand new set of plugs and wires, and the car seemed fine it idles normal. But then I go for a test drive and I found out that it only misfires under 2,000 with the car in gear. WTF!!!! Whenever the rpms get up over 2,000 it's fine.

Re:Nothing Below 3,000
 

timing belt skipped a tooth?

Re:Nothing Below 3,000
 

I have thought about that but wouldn't the compression be bad or low.

A new update just got back from test drive number two and the exact misfire only happens when I below 60% throttle. I will pull the plugs and see if I can tell anyhting from those.

Re:Nothing Below 3,000
 

Just went outside and checked my plugs. They are white like a mother fucker which means lean so should I just try retarding my timing or change my safc setting? Or maybe a little of both?

Re:Nothing Below 3,000
 

Just went outside and checked my plugs. They are white like a mother fucker which means lean so should I just try retarding my timing or change my safc setting? Or maybe a little of both?

I am going to bed so peace out.

Re:Nothing Below 3,000
 

probably not it but what the hell, cylinder postion sensor?

Happened to me on my old hatch, it had a bad hesitation up to 4k and then after that it ripped.

Re:Nothing Below 3,000
 

I don't know what in the hell you are talkin about,
do you mean the crankshaft positioning sensor. I don't know I will look into it, anyone else have any ideas.

Re:Nothing Below 3,000
 

try throwing in a bit more fuel from 1000rpm to 2000rpm. if you're really leaning out at that point, it might help... especially if your timing is fine.

Re:Nothing Below 3,000
 

Thanks warrick I'll try that tommorow it's too late tonight my parents get pisssed along with everyone elese in the nieghborhood.