Recent content by limate

It is running normal w/o issues now. Thank you all for the kind and helpful comments.

Hi All, I got the warranty repair done on Monday, and did not get the paperwork (simple one page stating just changed pre-cat and gasket)until today. Good thing is to be rip-off free. The service manager originally tried to take advantage of my playing dumb by quoting me parts and labor...

Please post a how-to when you accomplish this task. Good luck and thanks.

Hi all, Playing dumb today worked, but it was not easy. I will be back next week to get the work done, so far nothing will be charged orally from the dealer (after a small fight). They are really not honest in the nature. I will keep you posted till the story finishes. Thanks a bunch for...

Remember to get enough space before reaching to the EGR. Also check the wire, coils even before working on EGR although there was no CEL yet.

TheMan, I have made an appointment with the dealer for Monday since the CEL was back. Please allow me for a follow-up question: why it is better to play dumb in approaching the dealer to do the warranty work? For example, if the dealer treats me as a dumb, and told me there is a P0421 code...

Thank you for the inputs, THEMAN! My only concern is the incapable local dealer since they gave me wrong diagnosis when my first P0300 showed up. They might point me another direction when I bring the car in by saying not the cat problem blah blah... Is there any good way when I deal with...

Bad luck came back this morning with same code repeating. My friend cleared the code before I tried to set up an appointment with the damn stealership since I was told the cat is still under warranty. But the car is running stably, so it would not be a bad idea to watch it carefully several...

Hi all, Replaced spark plugs, wires, and coil packs today, also reset the CEL code. Drove home without further issues yet, and tested one of the old coils to find out huge resistance. Hope this is the root cause! It turned out that the damn stealership was so bad in doing the diagnosis while...

Finalized the parts for change today, but ignition coils would not be available till two days later. However, got a CEL with code P0421 on the way home, and light was on without flashing. Definition: Catalyst efficiency low-bank 1 Possible causes: 1. Catalytic Converter defective (Failure...

echofall, Thank you for the reply. Actually my previous CEL code was P0300 but without today's symptom, that was why I changed EGR valve based on Mazda dealer's diagnosis. Would you please share where to buy the ignition coils? Did you change spark plugs and plug wires at the same time? How...

I drove my car back from work to home on local roads, and everything was good at the beginning. But during the driving suddenly I noticed my car stuck at 25mph, no matter how I pressed my acceleration pedal: the engine speed rose from 1k rpm to 3k rpm, but the car speed was kept below 30mph. It...

DIY with success It is a great experience that I replaced the EGR valve by myself today although it took me couple of hrs because of the small room to get tools in although I removed the battery and hoses. The old EGR was not so bad with carbon build-up. Test drive showed idle speed change...

Decided to DIY Clifton, Thank you so much for the warm help. I happened to read the EGR clean thread, and decided it to DIY after receiving the ordered part. I will update after working on this project. Regards, Limate

Hi All, I recently got CEL on for my 2002 P5 with code P0300 to tell that multiple random missfires have occurred. It did show up intermittently for couple of weeks, and I had to bring it to a local Mazda dealer for a paid diagnosis. The car mileage is barely over 50K miles. The dealer's...