Soccerking3000

okay, i redid my valve lash/adjustments again and replaced the rotor and cap and spark plugs but the car feels like it is misfiring at idle, could it be doing this because of all the times i took the spark plug wires out and they got damaged or does anyone have any idea why this would happen, if you would like to get better idea i will post a video up of it tomorrow, thanks in advance.

electric-boost

it should throw a code for misfire (70-74)

Soccerking3000

i'm not getting any codes... i will get a video up so you can see what i am taking about it idles fine but in regular intervals there is a lower tone thump not loud or anything, i cna feel it in the shifter and the engie rocks a little

murmur9

did you do your adjustment wrong?

MNEJ2GUY

my buddy has this too.....don't know why...no codes too..a small thumb..and rpm drop like 200 rpm, less than 2/8 of a second....happens every few minutes at idling..

Deemeetree

How's your timing and ignition system?

Soccerking3000

see i cant really do my timing cause when i have the timing gun working, you need ot have the engine at a steady 750 rpm or so, my car idles up and down, its not a vaccuum leak though, it seems to idle fine then all of a sudden it dropps 100-200 rpm, and it makes it pretty much impossible to get it right

electric-boost

well my timing is way out in left field and hasnt made a noise like that so idk

was it like a deep hmmmmm noise and then the engine idle went down? cause if so mine did that in a parking lot last night but only has done it once since the timing was fucked a month ago


Modified by electric-boost at 11:03 PM 8/12/2004

Soccerking3000

and after it drops it goes right back up pretty quickly if it was a vaccuum leak it would be a steady up and down buts is very quick up and down then its fine then up and down every 5 seconds or so it does it

life sux die

maybe it's your engine "cycling"???

Soccerking3000

i reset the ecu and nothing happened i will get a video up in a few minutes...

DriveSideWays

yo i got the same problem!!! i've tried everything to fix it. i did a oil change and spark plug change and it started happening. i replaced wires, spark plugs, car, rotor, checked vacum, intake, everything and i havent solved it yet. and it seems to be worsening.

H.A.R.T b16a1crx

mine does it too, right after i got a swap done, dont know what to do either

blykins

Bump.

Soccerking3000

bump, anyone know could it be a sensor reading wrong or something

Jaydeep

i got same problem.

Deemeetree

If I go by my tachometer, I'm idling at 100 RPM which is not possible. My RPMs also go up and down every minute or so. I'm thinking it has to do more on the power surge side. When the fan or something is triggered, voltage gets drawn so I'm guessing the main harness' voltage goes down which might cause the little drop in RPM.

jbscivichb92

my stock cx engine did the same thing.
solution:
got a b16a sirII

Soccerking3000

well a ne engine isnt quite in my budget, see when i drive it it will sharply decline about 50-100rpm then go back up, when i drive and go to stop it will idle fine for about 10 seconds then start doing it again. could this because of a ground being dislodged?