i have a 95 civic with a d16z6 (unknown miles) but its misfiring at idle. it feels like a constant vibration. and pressing and depressing the brake pedal changes the idle. any help?

 

Throwing any engine codes? If not Check plugs, wires, Cap and rotor. those ok do a compression test to make sure its up to par.

 

Dizzy cap plugs wires all 3 months old. all Oem honda and NGK. Compression is around 192 all cylinders. and no codes. the cel bulb is there. i unplugged the TPS to make sure it actually worked.

 

hmm so you have done a bit of trouble shooting. have toy tested your oxygen sensor to make sure it is still working correctly? I wasnt throwing a code for mine but it was faulty and making my car run uber rich untill I swaped it out. Also a plugged injector could cause similar problems.

 

its running very rich. ive never tested a o2 sensor. i really dont know how

 

here ya go

http://www.ehow.com/how_5544442_chec...n-sensors.html

or you can go pick one up or barrow a buddys make sure you pull the ecu fues for 30 sec so the ecu will reset and can re learn everything again.

 

also u might wanna check if u got good gas sometimes people forget check those things. when the last time you change the fuel filter? a clogged filter can cause that kind of a problem

 

Thats true also, none of that arco **** they water their crap down with ****. I only do Shell or chevron.

 

Fuel filter is new. I always use shell gas. Replaced o2 sensor it helped with the running rich. I did somemore testing when I turn the air conditioning on it smooth out some but its still there. When I depress the brake it starts to idle like the iacv is bad. Which the iacv is also new. My brakes go to the floor and hardly stop. I also have a new brake master cylinder which after I replaced it I bled the hell iy of them. Maybe a vacuum leak in the brake booster?

 

bump

 

help?

 

Your idle could be low also what are you idling at? are you running a stock P28 man?

How to Adjust Idle

http://garageninja.com/idle-speed-mi...-1992-1995-eg/

 

it is idling low ive tried to raise it. but nothing seems to work. and as far as i know its a virgin P28.

 

Well follow the steps in the walkthrough I posted for you and you will be set. also how is the timing on your dizzy? is it set in the middle or is it tilted to the firewall or tilted to the front of the car. put it dead center or little to the front until you can check the timing light.

 

timings dead on i checked that when i replaced my dizzy and the dizzy in in the middle. i just did the walk through. its right at 650, still shakes and stuff. im about ready to push this car into the tennessee river and laugh as it sinks lol i also noticed as i was doing this it had the occasional miss while i was holding it at 3k rpms....