RX-8fan01

I need some help . My car has been turbo for almost a year . And now it seems to be acting up . I have not had the car tunned at all because it has been running great now its not . Its has a little rough idel , It idels good and then will drop alittle and almost want to stall but its not that bad . Also I have a WideBand O2 sensor and my car is running real lean . AND when i get into it it seems to then go right to rich no in between . Sometimes its better then others though. When i take off it seems like the intake is clogged like it not wanting to go any where then it takes off ?? any ideas .. Also im thinking i want to get my car tunned what do i need to do that ??? Not really wanting to do the full engine managment ??? Can you please help and or tell me what I need to tune my car ???

Thanks
Shane

rkostolni

Do you still have a catalytic convertor? If so, that commonly gets clogged with FI, and can cause problems.

Sapphonica

Do a compression test. You might have a cracked apex seal.

RX-8fan01

I do not ahve a cat .... it was clogged before but we unclogged it and hollowed it ... i dont think that i have a blown apex seal .. its not smoking bad at all .. Just not getting fuel

Ajax

I had the exact same idling issues on my car NA.
I had fouled spark plugs. Replaced them and all was well.
Check your plugs.

RX-8fan01

Did it seem like it wasnt getting fuel ???

RX-8fan01

Anyone Else ??????

rkostolni

We can't possibly give you a good diagnosis with the little amount of info you have provided. We need more info. Do the following

1. Pull your plugs, see what they look like. See if they smell like gas.
2. Upload a plot of your AFR.
3. Check for any codes in your ECU.
4. Provide any more of a description about your problem that you can.
5. Visually check you ignition coils to make sure they're okay.

RX-8fan01

Do you recomend ... the full EMS ??? and get it professionally tuned ?

Shane

chikmag382

Go straight for the fouled plugs. I'm a Volvo technician and on our 2000-2004 S40's they would do the exact same thing. Sitting at an idle, the car would hick-up, not all the time, but sometimes really bad, and sometimes only a little. And then when you get into it and get up in the RPM's a little bit, it feels like the car is just falling flat on its face. Replace the plugs and go from there.
1. What kind of turbo kit do you have?
2. Do you have a greddy E-Manage?
3. Get a Pro Tune

swoope

iTrader: (5)

hunting idle and running lean.

first guess vacuum leak.

beers

MadDog

No. If it was working fine before, it will again. You just have something that changed. Find it and you'll find the problem. These other guys have good suggestions where to start.

RX-8fan01

Thank you .... i will start on monday ... i will keep you all posted ... What plugs should i go with ??? I changed them about 2 months ago ... But it was with standerd plugs anything better out there ??

thanks again
Shane

So my brother is a mechanic and he said i deff have a missfire ... So we are going to change the plugs and wires .. and hopefully it is nothing in the motor wrong .. If that doesnt work we are going to do a compression test .... The CEL seems to blink quit a bit now ... i dont no if that means the problems is getting worse or not ... But he seems to think that it is just a major tunning issue ...... What do you all think ... I REALLY hope its not my motor

BigOLundh

iTrader: (1)

If you have the first run of the Greddy Kit you need to look here. I hate CEL problems until i fixed the dongle...
https://www.rx8club.com/showthread.p...=greddy+dongle

Like everyone else is saying, it maybe plugs or also vacume leak. Make sure to check to see if all those pipes are clamped down thoroughly.

The stock plugs are NGK Iridium plugs. Its a good brand, but i would just recommend getting colder plugs. Instead of 7 Leading, 9 Trailing... you can go with 9 all the way around....
https://www.rx8club.com/series-i-tech-garage-22/%5Bpics%5D-changed-plugs-73970/

-hS

rkostolni

Scott from Mazsport has a set of rx7 plugs that he recommends. Alot of us are now using them. They have 4 ground straps instead of just one. This makes them much more difficult to foul compared to the stock iridium plugs. They are also one heat range colder. Best of all they are alot cheaper than the stock plugs. I have them and have had no problems with them.

If you have a mis, make sure you check the ignition coils also. They are a common problem. Pull your ecu codes. It should at least tell you which rotor is missing. Pull those plugs and visually check for spark - make sure fuel is disabled first though by pulling the fuel pump relays. One is labeled fuel, the other is labeled circuit.

KJ238

NGK Racing Competition Plugs for the SE3P are 9L 10T.

part no's are: R7440A-9L , R7440B-10T

BigOLundh

iTrader: (1)

Do you have the brand/part number?

rkostolni

No I don't. Scott usually has them in stock if you want to order them. Or he can probably give you a part#.

adrian-1

all 4 NGK BUR9EQP , 2 use shims.

chikmag382

I know it's a few posts late, but pulling codes is definitely the right place to begin. Whenever you have a CEL light that is flashing at you, that means there a misfire currently happening, that's what OBD II computer systems are required to do. So if your light keeps flashing, you keep on having the same problem. If you changed the plugs a few months ago, they shouldn't really be the issue. I recommended them earlier cuz I didn't realize you had just stuck knew ones in. If you don't have a scanner, it would be more effective for you to take your car to an aftermarket shop and pay the $50 for them to scan it for you and tell you the codes then it would be to just start throwing parts at it. Save yourself some money and Diag. it right the first time. Like someone mentioned earlier, check all your hose clamps, hoses, electrical connectors, and plug wires and make sure nothing is loose.

rkostolni

advanced auto parts pulls codes for free.

RX-8fan01

well i am going to my freind who is a mazda mech and he is going ot pull the codes .. and do a compression test before i do anyhting to the car .. So if so it is the motor i dont waste no money on it ..... I will post the codes that i get and all the good info .... hopefully no bad ... But im 99% sure its a missfire .... i just hope it just in tunning and not anything to seriuse... its not a bad missfire just a slit one at idel when im driving the car you dont feel it ....

Shane
thanks all alot

RX-8fan01

Problem solved plugs were shot ... but now im selling the turbo .... and putting the car back to stock .... PM if intrested in turbo

Shane

rkostolni

Why are you selling it? Discouraged that easily?

Moostafa29

Your car is going to seem like a dog now. Keep the turbo!