323F Rough Idle

pablo_tt · Posted: Mon Jul 21, 2008 6:05 am Post subject: 323F Rough Idle

Hey mazda peeps, did some work on the Mazda recently and when it was time to start, the enging seems to rough idling. Now the following was done:

*Change of brake callipers & rotors
*Change of axels
*Cleaning of fuel injectors
*Change of spark plugs

One thing prior to note was the I believe something was adjusted (air flow I believe). But as it is now the car rough idles and I think it may be running a bit rich. What is strange is that when the A/C fan runs, the rough idle stops. To give an idea, I have attached a video. Anyone ever experienced such a problem before?

ζђίΰД™ · Posted: Mon Jul 21, 2008 8:07 am Post subject:

It might be your air flow sensor...

wagonrunner · Posted: Mon Jul 21, 2008 9:09 am Post subject:

pablo_tt · Posted: Mon Jul 21, 2008 9:18 am Post subject:

Well, one of this things I was looking to raplace was the intake pipe. Have one done up by a friend of mine. This afternoon it should be done up and I can give an update from there. If is d airflow how much am I looking at and is it very hard to find?

Strugglerzinc · Posted: Mon Jul 21, 2008 11:48 am Post subject:

check vacuum lines.

cinco · Posted: Mon Jul 21, 2008 6:48 pm Post subject:

take off that cone filter and try it again
clean yuh tb and check your pcv valve

hong kong phooey · Posted: Mon Jul 21, 2008 8:21 pm Post subject:

also if your engine mounting rubbers and transmission mounting rubber was damaged this will cause you to rough idle also

cinco · Posted: Mon Jul 21, 2008 9:02 pm Post subject:

that would cause him to feel the idle but from his video the rpms are really erratic

rainman · Posted: Mon Jul 21, 2008 9:09 pm Post subject:

looks MAF-ish!

hong kong phooey · Posted: Mon Jul 21, 2008 11:48 pm Post subject:

cannot see the video
if one of the plugs not firing also
or the spark plug wire leaking
i beleive his car is a 98 model

villain · Posted: Tue Jul 22, 2008 5:16 pm Post subject:

if at one rpm it idles rough then at a next(higher) if the a/c is on...its could more than likely be mounts...you have solid mounts in the car?....
(i glad for my emange yes...that does sort out all that dotishness one time...well if you have a tuner who know what he doing...(damn thing does look like greek to me on the laptop)

pablo_tt · Posted: Wed Jul 23, 2008 9:16 am Post subject:

Sorry for the delay. Turns out my intake pipe (which was 10 years plus original from southern sales) had about three open holes on it where it was mounted by the throttle body. Replaced it with a custom (when I say custom I mean custom) made metal intake. We also blew out the throttle body and did some other cleaning up. I will take pictures when I reach home to give an idea what I mean and also do a video with the car and how it runs now

pablo_tt · Posted: Wed Jul 23, 2008 9:17 am Post subject:

oh yea, the hissing from the video is the air escaping from the hole in the intake pipe