and yes i searched ... anyways my check engine light is lighting up radomly. sometimes when i satart my car it will turn on other times it wont, and some times when im driving it will just turn on. do any of u have any suggestions on what this could be? i took it recently took it to get the oil changed but i dont think that is the problem. please help! thanx

preston

 

If you really searched, you'd find a way to pull the codes out and see what the problem is. Search a little harder...

 

I sincerely doubt you searched, because pulling engine codes is a basic FD topic....

http://www.fd3s.net/engine_codes.html

The procedure for checking codes is also in Section F of the Factory Service Manual, which can be downloaded for free from the stickied thread.

 

well i dont have the magic touch of the search function either like u moderators. any ways thanx for the link and i would download the manual but im on dial up and it would take me ages to do

 

yea check it out it is VERY easy to run the diagnosis. all u need is a couple minutes and a paper clip.

 

had the same problem...took it to auto zone cause they have a book on the codes...did the paper clip thing...said something bout a intake air themosensor??? gunna do some researching on it.

 

i got a code 16 which is the egr valve... wtf, do i have to replace it or what???

 

what do you think?

 

well idk cause ive been reading some old posts and the answers arent clear... some say u just clean it or somethin and so say u replace it... idk about u but i no that i dont want to pay $150 for a new one if i dont have to.

 

either clean it or replace it
sucks for us cali fd owners
mine goes on and off but im not worrying...different motor coming soon

 

You could try cleaning it first....but be prepared to have to replace it.

I'm glad I have a 95 -- no EGR, no PCV.

 

replace it with a mazda federal non Cali ECU. it will not look for the electronic switch and your light problem will be gone. I had the same problem after paying to replace the EGR valve. same problem came back. post in the for sale section and you will find one for cheep
Jeff

 

theirs a non cali 5speed ecu in the for sale section for $50.00 by goodfellaFD3s.this should get rid of the check engine light code 16 and still keep the egr working.
Jeff

 

well im gonna be buying a pfc soon so i dont tink im gonna buy another stcok ecu... where is the egr valve

 

^bump

 

So you have a 94. The 93 and 95 ECU's don't give a rats *** about the EGR, so you have three options, replace your egr, get a 93 ECU and swap it out and it won't look for the egr, or you can get a 95 ecu which doesn't look at the egr because the 95's don't have them. Your options are nearly endless, oh the 4th one I forgot to mention is do nothing.

 

actualy i have a 93. and where is it located? so i can clean it ur somthin...

 

Do you have any friends with a DSL or cable connection ??? If you do get them to download the FSM for you and burn it to CD so you can print it or veiw it when ever you like. Takes 5 min tops from download to cd.