BigCajun

iTrader: (1)

These are the rebuilders I'm aware of, plus there's some links to reman threads in it.
If you find someone not on the list, please post it here.
Thanks.


https://www.rx8club.com/rx-8-discuss...ilders-265177/

TheRedRotor

If you go the rebuild route you could have the irons lapped and get new housings however it's around the same if not more cost wise to do that as opposed to getting a Mazda reman. Did the dealer give you a printout if your compression test or just word of mouth?

mtrex

Thanks Red Rotor & Big Cajun. After reading some other posts I was thinking about the idea of getting a report and now I will definitely ask. They just told me but did not give the printout and I saw that RPM of the test is important too. Hopefully I can get that tomorrow.

Michaelfoe26

So I got my rx8 under the pretense that it was freshly rebuilt by a reputable person I trust . But it had a few issues I was made aware of. That it needed a new intake and that it might have a vacuum leak . And that it needed to be bump started because apparently with an Atkins Rotary rebuild kit , it didn’t make enough compression to start off of the starter . But after bump starting it and driving it roughly 13 miles. It still won’t start under battery power and it dies when I push the clutch in. It won’t idle at all. Sounds like a fuel pump . When it hits 1200-1500 rpm it abruptly sorta dies. Doesn’t trickle down like I’ve heard a low compression engine does . It has some engine codes but other than an O2 sensor I don’t think it would cause not starting under battery power or bad idle . Or maybe the engine hasn’t broken in yet? I’m not sure . Any help I’d appreciate

Loki

iTrader: (1)

What are the codes? You would be surprised what affects starting.
P0420, if that is the O2 sensor code you have, typically indicates a clogged cat, rather than bad sensor.
Clogged cats kill engines.

Michaelfoe26

I have no cat. It’s open header right now

Inverse

I've mazda rx8 2004 first gen
After parking for a week, my car wont startup i try to cranking for 10 second still no hope, the rpm is stand in 0 with no movement, i check sparkplug the leading fire up and the trailing did not, as i know it was normal while cranking, i check fuel pump i think is normal because while i put ignition key to on fuel comes out of the pipe..
the last think i did is scanned with obd and the result is code U1900.
Please help i will very very appreciate..

Kimmidd66

I'm sorry I'm new to this group and just trying to find out where i can message some one about the problems I'm having with my car

blainezoomzoomrx8

Im having issues getting my starter to crank over.
I replaced the battery clamps, battery, got a low millage 07 + starter, swapped out the relay. My next step is the clutch switch, is there anything else I should be looking at?
ps my car is an 04 6 speed

Loki

iTrader: (1)

That explains the oxygen sensor code. Whay are the other codes?

Loki

iTrader: (1)

U1900 is a pretty general failure of communication between the computer and other components. Possible a rat has chewed through wiring behind the dash or under the hood while it was sitting?

Loki

iTrader: (1)

Does the red car and key icon on the dash flash rapidly when you try? Any blown fuses?

StealthTL

iTrader: (1)

As Loki says, the 'U1900' code is the ECU.

If the clutch switch and relay are ok, the next step is to put a jumper wire across the large terminals in the relay socket.
If it cranks with these bridged, that's bad news -(worst case Ontario)- that relay grounds thru the ECU, and it's not grounding.

Either bad wiring around the ECU or bad ECU.....

drag1c

Dear all,
I found out that my car not having trouble to turn on when hot (cranking max 5 to 6 seconds), but if it was really cold (first turn on in a day) and I turned it on, heated him, drived him and then turn it off, after 4mins I would have problems to turn my rx8 on. It turns after 12seconds to 15 seconds of cranking, it never flooded.
After that, every single time i turn it off I do not have problem to turn it on. It cranks 5 to 6 seconds.
It cranks from 5 to 6 seconds no matter of time I was waiting (1 sec, 15sec, 1 minute, 5 minute, 20 minutes).

I readed whole article and I did not find what could cause this problem. I have 4months old starter with 14 teeth, 2.2kw.

Did anyone have same situation?
Thanks in advance!

My car is 2003, 230hp 6 gear transmission.
84000km.
Right now it using 5w30 shell helix

TullioRX8

Hi, I recently put in a 13B engine after mine bust apex seals. The problem is when all was done, the CEL is not coming on when ignition is turned on. Help please.

Dud1f3r

If I'm asking a question that's been asked before, or I'm posting in the wrong thread, feel free to yell at me, but I've searched for like 5 days and ain't found nothin'

Ok so when I try to start my RX8 (05, 6spd AT) all power goes out until I unplug the battery than plug it back in. When I put it in "on" everything works fine, the dash does a dance and the radio will play it's music, but as soon as I try and start it, the whole car just shuts down. No relays clicking, no dash, no starter turning over, nothing. New battery, main fuse (It was blown when I got it), and new starter relay so far, and because the battery keeps faux dying, no codes in the ECU. Anybody got any ideas?

Loki

iTrader: (1)

Sounds like the battery is toast and/or battery terminals are loose/dirty. Powering the accessories takes about 5% of the current required to turn the starter and the battery may have lost all capacity to provide that current.

mazdaverx7

iTrader: (6)

Dud1f3r, check your battery terminals to ensure they are not loose and that no corrosion is present. It sounds to me ad if they are just not clean and or secure.

Dud1f3r

Would that also cause no power to come on anywhere until I unplug and plug back in the battery?

Edit: Yes it would. Thank you so much!

Loki

iTrader: (1)

Yes. What is the one thing you're changing when you unplug/plug the battery? It's easy enough to check/fix also.

​​​​​​

TullioRX8

check your earth cable line right up to where it’s fastened to body. Depending on battery terminals on your positive and negative cabling, check tightness of terminal that fits on battery to cable gland. 🙂

mazdaverx7

iTrader: (6)

You're welcome and happy to help. Did you get the issue resolved?

Dud1f3r

Yes it did! She starts right up every time now

Ryan Bohlim

Hey everyone. Not sure if I’m doing this right, but I had a question for the members here. I have a 2004 Rx8 and I noticed the shifter console bulb was out. I bought a new one, popped it in, turned the car on, made sure the headlight and other console lights came on, but the bulb won’t light up. Any ideas on what that could be? It’s driving me bonkers.

Also, Did the 2004 models not come with a trunk light? Because there’s not one in mine ANYWHERE. 😳

appreciate any help or guidance
ryan@Southwest Airlines

ChaseZehr

I was driving my rx-8 and my radio was cutting in and out then Next thing I know my battery light came on and I got to where I was going then I turned my car off and then it wouldn’t start I was there for a hour to hour and half then when I was leaving I got in and it barely started I was making my way back home when I lost all the lights in my car I had no internal light what’s so ever my headlights only worked on dem my taillights work when reverse light and break was being applied but turn signal was flashing flicking quick on dash but the light wasn’t working if I push the gas to much my car was bumpy and started to slow down instead of speed up but if I kept a constant push of pedal it drove but I didn’t know the speed cause my gauges didn’t work and I got home turned it off and I couldn’t start it again charged the battery nothing still the car was dead I changed alternator still nothing but when I put jumper cables on the pulleys turn but the car won’t start and if I take the cables off the cars dead again and nothing happens I need help. I’m about to put new spark plugs