Dumb Question Thread - no flaming or sarcasm allowed
#4951
[QUOTE=RIWWP;4703569]All revisions of coils fit all USDM spec RX-8s without any modifications or ECU problems.
Thanks RIWWP.
Coils are ordered and they'll be replaced this weekend
Thanks to the other guys for the quick replies also!
Thanks RIWWP.
Coils are ordered and they'll be replaced this weekend
Thanks to the other guys for the quick replies also!
#4952
Senior Member
All revisions of coils fit all USDM spec RX-8s without any modifications or ECU problems. (The exceptions you may hear about are JDM spec RX-8s, or at least with their ECUs, which have an ECU test for specific revision usage). The cheaper original coils (A is actually the 2nd, B is the 3rd, C is the 4th) are usually still worth the price, since the price climbs faster than the relative lifespan for the newer versions of coils. Just keep in mind to change them every 20k or so.
#4953
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There is nothing that the JDM ECU can do with a tune that the USDM or EUDM ECU can't. There are no tune advantages with one over another at all. The differences are in the other details. Like we have different communication protocols, we have different emissions checks, etc...
#4954
Senior Member
There is nothing that the JDM ECU can do with a tune that the USDM or EUDM ECU can't. There are no tune advantages with one over another at all. The differences are in the other details. Like we have different communication protocols, we have different emissions checks, etc...
I believe the PCM uses an Atmel ATMEGA of some kind, but they put that gooey black **** on the board so you can't extract chips or reverse engineer it.
#4955
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To my knowledge (I could be wrong), you could in theory alter a USDM ECU to be electronically identical to the JDM ECU, just swapping in the software, and vise versa. There may be physical board differences, but I doubt it. I can't really see any possible advantage to trying to get a JDM ECU Working, and the number of people over the years that have gotten one thinking it would be "better" have dealt with nightmares trying to get everything working.
#4957
Senior Member
#4959
Senior Member
#4961
Too old for PC
Yes ...if that will give you the needed clearance where you're rubbing. We're talking snow tires. Width and to a lesser extent aspect ratio isn't critical. Tread design and compound is. If they only barely rubbed, you could try 225/50 and the speedometer would stay the same as the 235/45s.
Last edited by Signal 2; 07-08-2015 at 11:05 PM.
#4962
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2004 6-speed Can I cap the nipple on the oil filler neck and the nipple it connects to on the intake and remove the line? What purpose dose this line serve?
#4963
Senior Member
![](https://cimg3.ibsrv.net/gimg/www.rx8club.com-vbulletin/826x779/141583d1246565436_wtf_vdi_solenoid_valve_control_circuit_solenoid_locations_9dab47c75212b97f49e05ebdc6d854e20878d59c.jpg)
You are talking about the non-colored hose form the oil stem to the intake right? I believe that is required for PCV and Oil Pressure regulation for the OMP and other items. I believe the VFAD is the only thing you CAN remove. If you are going to do something with it, put a better clamp on it, and add a catch can. I would not remove it. Very few things on the car are optional.
#4964
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![](https://cimg3.ibsrv.net/gimg/www.rx8club.com-vbulletin/826x779/141583d1246565436_wtf_vdi_solenoid_valve_control_circuit_solenoid_locations_9dab47c75212b97f49e05ebdc6d854e20878d59c.jpg)
You are talking about the non-colored hose form the oil stem to the intake right? I believe that is required for PCV and Oil Pressure regulation for the OMP and other items. I believe the VFAD is the only thing you CAN remove. If you are going to do something with it, put a better clamp on it, and add a catch can. I would not remove it. Very few things on the car are optional.
Yes I am. The VFAD is already removed and capped. I want to cap that oil filler neck it's causing me problems and it seams useless, i ran a catch can it will fill up 750ml's in half an hour.
#4966
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#4967
Senior Member
Seems like if you cap that, it would just build up oil somewhere till the vac lines overflowed and clogged the solenoids. Essentially it sucks oil out of the lines that isn't supposed to be in the lines. Oil will eat the hoses up in excess too.
#4968
Has anyone found a deal on the Mazda Rx-8 dashboard? I just got off the phone with Mazda and they said I'd have to have a diagnostic check(meaning a dealership has to take a look at the dashboard cracking) Now...it doesn take an hour for them too look at a freaking dashboard. The dashboard is cracked due to sun damage, humidity and they say armor oil products. But I never sprayed anything like that on my dashboard. I am not paying $110 bucks for a technician to not look at the dashboard for 1hr. It takes 2 sec to see what the "issue" is. Shouldnt Mazda be required to replace this cause the airbag is in the same area. Also this is the first car I seen this with or heard of it occurring. Disappointing.
#4969
Too old for PC
I'm not saying this is the case with your car, but I have seen damage from objects/persons impacting the dash from inside the car. Either from a serious accident, or from someone simply not being very careful with an object heavy enough to crack the vinyl. I tend to agree that an hour labor seems a bit much, but that maybe why MAZDA requires the inspection. And if damage ends up being the premature result of UV baking, seems like to be fair they should waive the hour labor for inspection.
#4970
You gonna eat that?
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You would think they COULD just look at it and not charge you, but an hour minimum is standard.
I almost never defend dealerships, but they are there to make money after all.
Imagine if they didn't charge everyone that had an obvious problem, and then they tell them what's wrong and give an estimate.
Then the customer takes their estimate and goes to an independent shop for a cheaper quote, it could add up quick.
They are using techs that would otherwise be working on paying jobs, and losing money.
I almost never defend dealerships, but they are there to make money after all.
Imagine if they didn't charge everyone that had an obvious problem, and then they tell them what's wrong and give an estimate.
Then the customer takes their estimate and goes to an independent shop for a cheaper quote, it could add up quick.
They are using techs that would otherwise be working on paying jobs, and losing money.
#4971
![Yelrotflmao Vi](https://www.rx8club.com/images/smilies/yelrotflmao-vi.gif)
![Rofl](https://www.rx8club.com/images/smilies/rofl.gif)
#4972
Senior Member
Has anyone found a deal on the Mazda Rx-8 dashboard? I just got off the phone with Mazda and they said I'd have to have a diagnostic check(meaning a dealership has to take a look at the dashboard cracking) Now...it doesn take an hour for them too look at a freaking dashboard. The dashboard is cracked due to sun damage, humidity and they say armor oil products. But I never sprayed anything like that on my dashboard. I am not paying $110 bucks for a technician to not look at the dashboard for 1hr. It takes 2 sec to see what the "issue" is. Shouldnt Mazda be required to replace this cause the airbag is in the same area. Also this is the first car I seen this with or heard of it occurring. Disappointing.
Check the crack and see if it is a crack or the exposing of the airbag. Mine turned out to be the seam of the material that disintegrates when the airbag deploys and it looks like a crack, but is a seem. Still pisses me off the same! ******* hate airbags, ill take a 5 point and a cage over an airbag anyday.
#4973
Definitely not a new problem. On the Series I they put a TSB about it. I think ASH8 had a thread about the part numbers. On the series II it happens too.
Check the crack and see if it is a crack or the exposing of the airbag. Mine turned out to be the seam of the material that disintegrates when the airbag deploys and it looks like a crack, but is a seem. Still pisses me off the same! ******* hate airbags, ill take a 5 point and a cage over an airbag anyday.
Check the crack and see if it is a crack or the exposing of the airbag. Mine turned out to be the seam of the material that disintegrates when the airbag deploys and it looks like a crack, but is a seem. Still pisses me off the same! ******* hate airbags, ill take a 5 point and a cage over an airbag anyday.
If the crack is bad enough to where it interferes with the airbag, does Mazda cover it? It becomes a safety issue then right?
Also as another question. The trunk has anti-freeze which spilled in it. Can I spray it with the hose, soap and water?
Last edited by mazdafan1892; 07-13-2015 at 04:45 PM.