Strange idle
#26
FULLY SEMI AUTOMATIC
iTrader: (9)
just a question for the guys with idle problems, do you still have the screens in the intake tubes? ive heard when they are removed/damaged it can cause idle problems. did you guys clean the ess?
#30
Ok so looking at the couple of options that were presented. My airbox is completely stock except for k&n filter (I know some people hate them). Cleaning the ess. I looked at where it's at.... Do I just take it off and wipe it down or is there a better way to do it? (not much in search for ess). 2nd the neutral safety switch..... I can't find it on mazmarts website and there is no search on it either. Am I just dumb and missing it?
#31
FULLY SEMI AUTOMATIC
iTrader: (9)
ess is on the front of your engine on the bottom if that makes sense. looking from the top (hood open) its kinda underneath/right of the e shaft pully "crank pully". i remove mine from the bottom, think its a 10mm bolt and it has a small harness conected to it. you can just wipe it off or use some brake clean. remember to do the 20 brake stomp afterward
#32
No respecter of malarkey
iTrader: (25)
Its not the neutral switch or that other stuff. $50 says that if you read the front O2 sensor you will see the afr make a lean dip just after the idle bobble (slightly after due to delay between when it occurs and when the O2 sensor sees and reports it)
It can be tuned out with an Accessport.
.
It can be tuned out with an Accessport.
.
Last edited by TeamRX8; 10-13-2011 at 12:44 PM.
#34
Its not the neutral switch or that other stuff. $50 says that if you read the front O2 sensor you will see the afr make a lean dip just after the idle bobble (slightly after due to delay between when it occurs and when the O2 sensor sees and reports it)
It can be tuned out with an Accessport.
.
It can be tuned out with an Accessport.
.
-Lawrence
#35
Modulated Moderator
iTrader: (3)
The neutral safety switch is usually a hunting idle that rythmically goes from normal idle to about 1200 rpms......
Inreasing the Ve values increases the amount of fuel...it is a multiplier not a Lamba Value
Usually rough idle is too lean and too low...so giving it a bit more fuel usually is the correct thing to do. Mazda does some major timing trickery to get it to idle as lean as they do...and anything that changes where the load value at idle is will take it out of the sweet spot and result in crappy idle.
Check yor trailing plugs /coils as well...you won't notice anything much with a trailing coil missfire when driving....but your idle will be horrible because it is the primary ignition event at idle
Inreasing the Ve values increases the amount of fuel...it is a multiplier not a Lamba Value
Usually rough idle is too lean and too low...so giving it a bit more fuel usually is the correct thing to do. Mazda does some major timing trickery to get it to idle as lean as they do...and anything that changes where the load value at idle is will take it out of the sweet spot and result in crappy idle.
Check yor trailing plugs /coils as well...you won't notice anything much with a trailing coil missfire when driving....but your idle will be horrible because it is the primary ignition event at idle
#36
The neutral safety switch is usually a hunting idle that rythmically goes from normal idle to about 1200 rpms......
Inreasing the Ve values increases the amount of fuel...it is a multiplier not a Lamba Value
Usually rough idle is too lean and too low...so giving it a bit more fuel usually is the correct thing to do. Mazda does some major timing trickery to get it to idle as lean as they do...and anything that changes where the load value at idle is will take it out of the sweet spot and result in crappy idle.
Check yor trailing plugs /coils as well...you won't notice anything much with a trailing coil missfire when driving....but your idle will be horrible because it is the primary ignition event at idle
Inreasing the Ve values increases the amount of fuel...it is a multiplier not a Lamba Value
Usually rough idle is too lean and too low...so giving it a bit more fuel usually is the correct thing to do. Mazda does some major timing trickery to get it to idle as lean as they do...and anything that changes where the load value at idle is will take it out of the sweet spot and result in crappy idle.
Check yor trailing plugs /coils as well...you won't notice anything much with a trailing coil missfire when driving....but your idle will be horrible because it is the primary ignition event at idle
#38
I'm positive the fuel VE acts on the main fueling table. It may also have an affect on other tables as well, but I am not sure right now. I really find the help file included with access tuner race program very helpful. Also, its fun to play around with different settings and explore how each table interacts with one another.
-Lawrence
-Lawrence
#40
I have this same issue. At idle, it bounces between 1,000 and 750 rpms.
I just recently cleaned the SSV and the idle didn't vibrate as hard but it fluctuates still.
I have an '04 Auto GT with 63K on it.
Mods - AEM CAI
I just recently cleaned the SSV and the idle didn't vibrate as hard but it fluctuates still.
I have an '04 Auto GT with 63K on it.
Mods - AEM CAI
#41
I know this thread is a couple months old, but I figured it'd be smarter to ask in this thread. I have the same issue as most other posting in this thread.
It's a rough idle that varies from about 750-1000 rpms. Occasionally it drops way down to 500 but shoots up to 1500 for a second, then back to 1000. I'll clean the air filter as soon as I can (Mazdaspeed CAI).
I recently installed a BHR ignition set-up including new plugs and wires (within a month), replaced the SSV solenoid (threw the engine code), done an oil change with Idemitsu, Optima Red Top battery (brand new). Other details on the car: 2004 m/t 54000 miles hi-flow cat, exotic speed exhaust. My engine light is on now due to a faulty fuel cap (already ordered a new one), I know that I do have a bad motor mount.
Like I said, I'll clean the air filter ASAP, I checked the MAF sensor didnt seem dirty, but I clean it if its recommended. And I'll do the reset. Anything else I should do? The motor mount is going to be changed, just getting my finances situated
It's a rough idle that varies from about 750-1000 rpms. Occasionally it drops way down to 500 but shoots up to 1500 for a second, then back to 1000. I'll clean the air filter as soon as I can (Mazdaspeed CAI).
I recently installed a BHR ignition set-up including new plugs and wires (within a month), replaced the SSV solenoid (threw the engine code), done an oil change with Idemitsu, Optima Red Top battery (brand new). Other details on the car: 2004 m/t 54000 miles hi-flow cat, exotic speed exhaust. My engine light is on now due to a faulty fuel cap (already ordered a new one), I know that I do have a bad motor mount.
Like I said, I'll clean the air filter ASAP, I checked the MAF sensor didnt seem dirty, but I clean it if its recommended. And I'll do the reset. Anything else I should do? The motor mount is going to be changed, just getting my finances situated
#42
Registered
iTrader: (3)
Join Date: Nov 2011
Location: Northern Frozen wasteland
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
Another NOOB question by me, 2004 6spd 88,000 km (Canada)
My car seems to idle fine rpm stays at 750 or so, but my shifter vibrates like crazy. Is this normal?
The car seems to run great Outside temp here is between -5 deg C and 15 deg C. I have only had it 3 weeks and have read alot of post on this forum, so I am a little paranoid about EVERYTHING strange the car dose.
My car seems to idle fine rpm stays at 750 or so, but my shifter vibrates like crazy. Is this normal?
The car seems to run great Outside temp here is between -5 deg C and 15 deg C. I have only had it 3 weeks and have read alot of post on this forum, so I am a little paranoid about EVERYTHING strange the car dose.
#43
US Navy Rotary Enthusiast
iTrader: (3)
I have an issue similar to that that you are having, but mine constantly goes up and down until it is warm then it is good. I don't know what a purge solenoid is or where it is located, but if its super cheap im going to try that. Mine happened after a new engine installed though, so probably not gonna fix that, unless its in the UIM, which I soaked in degreaser and water to clean it out. Maybe F'd up whatever that sensor is inside the UIM.
#44
X08
So far, I've cleaned the maf, changed plugs, wires, and coils, I still have to crank for a little longer sometimes for it to start, and it idles very rough...even worse anytime anything electrical is on, ie. fan for heater (worse with AC) rear window defrost, seat warmer, getting pretty frustrated...not sure what to change or clean next, really do want to get this straightened out though.
#46
i just purchased a 2004 6 spd and it seems rough at idle, just below the 1k mark. i havent seen it fluctuate between below the 1k (lets say 750 rpm for ***** and giggles) to over 1k like you described earlier. it seems to just stay below 1k at idle but is still rough, not sure if it coincides with the issues described but any advice to reduce a rough idle is welcomed
#48
Registered
Join Date: Jan 2010
Location: lower mainland
Posts: 86
Likes: 0
Received 0 Likes
on
0 Posts
Another NOOB question by me, 2004 6spd 88,000 km (Canada)
My car seems to idle fine rpm stays at 750 or so, but my shifter vibrates like crazy. Is this normal?
The car seems to run great Outside temp here is between -5 deg C and 15 deg C. I have only had it 3 weeks and have read alot of post on this forum, so I am a little paranoid about EVERYTHING strange the car dose.
My car seems to idle fine rpm stays at 750 or so, but my shifter vibrates like crazy. Is this normal?
The car seems to run great Outside temp here is between -5 deg C and 15 deg C. I have only had it 3 weeks and have read alot of post on this forum, so I am a little paranoid about EVERYTHING strange the car dose.
what really is the normal rpm at idle.
mine has always been at 750 since day one for 5 years.
it only goes beyond 1000 when engine not warmed up.
the shift *** vibrates but not like crazy.
and i thought this was normal.
Thread
Thread Starter
Forum
Replies
Last Post
Shankapotamus3
Series I Trouble Shooting
28
03-14-2021 03:53 PM
Danield97
Series I Trouble Shooting
1
09-30-2015 05:59 PM