Last post on Jan 24, 2012 at 12:40 PM
You are in the Mazda Millenia
What is this discussion about?
#8 of 43 Re: EGR problem with 1999 Mazda Millennia [jazzyman26]
Sep 10, 2007 (11:36 am)
I have had a 1999 and a 2000 Millenia. The EGR value issue is a big chaotic problem, yet with a simple solution. If you take the intake off the throttle body, and remove the four screws that hold the throttle body on and remove it also. You WILL see a really clogged hole in the bottom. If you take some engine cleaner, and spray it in it will break up the build up. I usually straighten a paperclip and clear the hole that way, but I think it would be better to instead of letting it fall through, picking it out. The check engine light will stay off, until there's another buildup. It is hardly ever the EGR Valve. Only few mechanics know this, so when they replace the EGR and it still does the same, you are all confuse. Wierd enough, you may also have carbon deposits in your exhaust, please don't check it while it's running. LOL
#9 of 43 For those with the TCS off and intermittent stalling problem....a solution
Oct 07, 2007 (1:07 pm)
Had the same problem a few years ago. There is a EGR sensor (or something like that) that is up in the middle slightly to the passenger side right up by the firewall. It plugs into a harness. It has a Mitsubishi emblem on it. Take it out. Start the car. Always have the TCF off light on and the engine light, but no more stalling.
(note, this is a completely different problem from the previous one I just posted- I felt that if I was asking, I might give something back)
Apparently this car has a history of a faulty computer that turns the TCS off light on when it shouldn't. So the TCS off light is misleading. It has nothing to do with the TCS - it's emissions. Removing the sensor has solved the problem on 4 others that I know of. Happy driving!
#10 of 43 Re: EGR problem with 1999 Mazda Millennia [kaczjones]
Oct 30, 2007 (8:29 pm)
same problem here 99 Millennia S.
have been driving with the Check Eng Light on for almost a year. Recently it started to blink. took it in to Firestone for Diag; they told me i have PO-431 Ignition coil #4 mised fire and typical O2 sensor issue. I plan to chang my spark plug this weekend. Don't spend money on O2 and anything more than a Thousand dollars repair just ignord it as long you have AAA just drive this car and have a good time - I really like this car but have no intention to upkeep it,
cars are losing proporsition from day one.
just gas and zoom.
#11 of 43 Re: EGR problem with 1999 Mazda Millennia [jazzyman26]
Oct 30, 2007 (8:34 pm)
PO-431 mean mised fire - replace the ignition coil.
go to Pepboys they sell it for $149, $90 installation.
replace the spark plug yourself but i think you can only
buy the distributor cap from the dealers.
Diag at Firestone is about $59 but i believe you can get a free one from PeppBoys.
#12 of 43 Re: EGR problem with 1999 Mazda Millennia [lovemykids]
Mar 15, 2008 (1:01 pm)
Duh!! In it for the money? Do you really think so?
#15 of 43 Universal Catalyic or Mazda Millenia
May 26, 2008 (7:49 am)
If anyone and a Mechanic can give me some insight pre-cats (both front) 2.5l 01
I"m considering buying two universal catalyic converter instead of going to the dealer paying $ 2000.00 can this be done or do I have to go to the dealer?If anyone
that have the same issue and use universal catalyic let me know please before I spend the money and what brand is best for universal converter Eastern or Magnflow
May 13, 2009 (4:07 pm)
hey i have an 02 mazda millenia with an EGR VALV and CAT CONVERTER prob how do i fix that? how much is it to fix? does it make sence to even fix it?
#17 of 43 EGR / ENGINE ENGINE LIGHT
May 17, 2009 (12:49 pm)
If you have determined that the EGR system is actually OK, then try the following:
1) Replace air filter--K&N hi-perf filter runs about $65 and is worth it-
2) double check battery posts/connections---clean/replace as necessary-
NO check engine light should BLINK and that may indicate a screwed up computer---very expensive!! Last resort-
Since you have the supercharged model, it's possible that you have too much boost---as nice as it is, the boost just uses up more gas and, let's be realistic here, it's not going to walk away from a BMW M3 or Porsche, so turn the boost down and see if that clears the indicator----you know that you can turn the light off by simply disconnecting the battery, right? (have to reset all your stereo channels--bummer) BUT IF YOU CLEAN UP THE BATTERY POSTS WHILE YOUR AT IT, IT'S WORTH THE EFFORT--
code reader may be also worth the $300----good luck and aloha, Mike in Kaneohe