I purchased a 99 Mazda Mill 2.3L and have been gettingt the TCS lights on/off. I've read some earlier postings but the codes I recieve are not the same ones. When I check the computer the codes come up 1402, i believe, which was related to the EGR valve. When I checked the codes to the ABS it came up with 82. I followed the procedure for code 82 (was in a posting by m2000 i believe, 12 step program) the answer it came up with was that the problem was with the PCM. After reading these posts it doesn't seem like replacing the computer was the correct step.

My question then is will replacing the EGR valve take care of the problem? It is part of the vacuum system. Or, am I getting the EGR code because of a simple (but hard to find) vacuum leak?

 

Try to fix the PCM code first and hope that the TCS issues go away.1402 is the EGR valve position sensor - open or short circuit.Check the electrical connector. The vacuum system on these cars are pretty complicated and a split or unhooked hose is very easily overlooked. Keep searching the forum for posts on your issue and I hope you stumble onto it. Wish I could be more help, but been extremely busy last several months.

 

I've read all over about this. Here's some interesting info: http://www.asashop.org/autoinc/may2001/techtips.htm
Apparently the code 82 that trips the TCS off light is an error in itself and will mislead you.
My solution was to completely remove the EGR boost sensor and it's run fine for 2 years like that. The engine light stays on though.

 

Trydisconnecting the ABS/TCS control module connector from the ABS/TCS module which is located underneath the brake master cylinder, behind the battery, in which you have to remove. Use a safety pin to bend all the small pins in the connector so that they will all have good contact when plugged in. If I remember right this code is a communication error. So whatcould have happened is that the connection was lost in the plug. It is worth a shot, It worked for me!

 

same thing happend with mine.this may be a stupid suggestion it may not evenhave to do with anything with the tcs but my car was doing the same thing it wouldnt go over 35 mph when the lights came on but then i started using premium fuel and it has not done it scince like i said this might be stupid but my solution was hi premium fuel

 

Megaquark posted a good link to that problem. It is very likely your problem. Micpaniaqua posted a fix for his which is plausable if the O2 sensor is lazy. In any event an O2 sensor switch's from rich to lean constantly around 2500 rpm. You can monitor it realtime. Normal operating time IE: switching from lean to rich is 5 to 7 seconds so if an O2 takes 10 seconds to switch it is lazy but will not set an O2 code. The link mega posted is a very good diagnostic tool for your problem. Of course if the O2 is covered with carbon then a bottle of Techron or Seafoam in the gas tank might fix it. 7 bucks is a cheap fix.