201 views and 6 replies...For anybody that had a P0300 code, P0301-P0304, and that you either fixed it yourself or the dealership fixed it for you, What did you/they do it fix it???

 

darn
get a sti

jk lol

 

Thanks, that was a very helpful post, i wish everyone's posts in this thread so far were as helpful as yours. Also i would never get an sti.

 

I would buy a new set of stock spark plugs

You cant use the BR7es plugs as they dont fit in the IX

I am not aware of any aftermarket plugs for the IX

 

I just recently had 3 cracked plugs at once in my 06. Seems to be common. In other cars where I was getting a misfire it was either bad injector, plug, TPS information or plug wire.

Good luck.

 

Thanks for the reply Al, I'll try and pick some plugs up from Mitsu tomorrow.

philthy IX - None of my spark plugs are cracked at all, but i have seen that in a couple other threads though. Yeah i had a misfire condition when i first bought my 97 GSX and it was the TPS, then i had it again when i did a 6 bolt swap but after getting the DSMlink it went away.

 

Would you recommend gapping the new set of stock spark plugs or just leaving them at the gap they are? From a couple threads i have read on this i seemed to get mixed opinions on it, thanks.

 

Have you even checked the gap on the plugs?

Try closing up the gap to @.026 before you go throwing money at it. That has worked for quite a few people.

 

If the dealer is close to you, take it there and let them "diagnose" the problem.
They will pull the code and try plugs, injector, whatever it takes.
And it will be covered. At only 4.5 months and with no engine mods, you should have no problems.

 

The IX plugs are gaped very tight stock

 

I disagree on this point

Once you start doing high performance tuning the spark becomes more critical as there is more cyl pressure

The IX's are cars which can go 11's with the mods he has and the stock plugs are a very common service item once you start stepping up the tune

IMHO - in most cases when you deal with a dealer you get your car beat on and in many cases they dont know how to fix problems

 

It happened to me 3 times when I was running the BPR7es gapped to 22. Boost at 25psi. The 7es made the car idle and run weird I had them in for about 2000 miles. Had problems on dyno with them Got new flash and put new set of 7es in got better. Next day put factory stock plugs back in and no problem car runs better with stock iridiums atleast with my car.


But have had the egr vaccum line come off on highway runs 3 times already, can't remember code tho. I just super glued it to the fitting

 

If the stock Plugs are Iridium, isn't gapping them going to damage the tip? I know on the NGK non Iridiums, they have a flat tip (Gapable), but on Iridiums, it's a cone shape triangular tip. Also you said you have the Buschur Stage one which consists of a Turboback right? Do you have a Cel Fix? I am running a testpipe on my IX and I have the Mechanical 02 Fix (Cel) and I have not gotten a Code.

 

The dealership is like a mile from me and they are a brand new mitsu dealer, just bought Mitsu from the owner of my dealership, which used to be Shoreline Mitsu Mazda. I don't trust any of the mechanics there since they are probably not certified yet to work on evos. They have only been a Mitsu dealer for a little over a month so far and i don't think thats long enough for me to let them work on my mid $30k car. Before Mitsu they were just a large Used car dealership. There are some other Mitsu dealers within about an hour and a half from me, but i haven't heard a lot of good things about them though.

 

Yeah, i didn't think you were supposed to gap the stock plugs because of possibly damaging the tip, like you said, i just wanted to ask to make sure. Yes i am running the Buschur TBE with test pipe and i do have the mechanical fix and i have had no problems with it so far. The code that came up isn't the P4202, or whatever the no cat/bad 2nd 02 code is, its P0304, Cylinder 4 Misfire. So not having a cat should have nothing to do with the misfire code that came up.