Strange noise high RPMS , power issue
#52
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Sorry, that's not the right hose.
The VFAD line/nipple is a bit toward the front of the car from there. Maybe 10 cm. Pointing down, just like that one. I think you can actually see it in the picture in my post above, with the green/white thing on it in the background.
Is your car a 4port or 6 port? In other words the 231hp version or 192 hp?
Last edited by Loki; 01-30-2018 at 05:39 PM.
#53
#56
Last edited by kanie12; 01-31-2018 at 02:12 PM.
#59
#62
Im wondering about the plugs, dont they show a rich condition in the engine ? This is the last check i did before i delivered the car. Seems like leak has increased.
Last edited by kanie12; 02-01-2018 at 08:56 AM.
#63
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Yes those plugs ran pig rich. Here's what I feel is the situation from the observations so far
- MAF g/s is low, so the car is getting air through a vacuum leak, OR the MAF is crazy OR the K&N intake is throwing off the MAF reading (which can happen)
- LTFT is high, meaning the front 02 sensor sees a lean mixture and the computer is adding fuel to compensate. This is consistent with a vacuum leak OR the O2 sensor is crazy
- spark plugs ran very rich, meaning the car has spent a lot of time running cold and idling OR both the MAF AND O2 sensors are crazy and there is no leak or lean mixture, but the car thinks there is one, OR multiple fuel injectors are injecting more fuel than they should.
As you can imagine those last 2 scenarios are pretty unlikely.
- MAF g/s is low, so the car is getting air through a vacuum leak, OR the MAF is crazy OR the K&N intake is throwing off the MAF reading (which can happen)
- LTFT is high, meaning the front 02 sensor sees a lean mixture and the computer is adding fuel to compensate. This is consistent with a vacuum leak OR the O2 sensor is crazy
- spark plugs ran very rich, meaning the car has spent a lot of time running cold and idling OR both the MAF AND O2 sensors are crazy and there is no leak or lean mixture, but the car thinks there is one, OR multiple fuel injectors are injecting more fuel than they should.
As you can imagine those last 2 scenarios are pretty unlikely.
#64
Yes those plugs ran pig rich. Here's what I feel is the situation from the observations so far
- MAF g/s is low, so the car is getting air through a vacuum leak, OR the MAF is crazy OR the K&N intake is throwing off the MAF reading (which can happen)
- LTFT is high, meaning the front 02 sensor sees a lean mixture and the computer is adding fuel to compensate. This is consistent with a vacuum leak OR the O2 sensor is crazy
- spark plugs ran very rich, meaning the car has spent a lot of time running cold and idling OR both the MAF AND O2 sensors are crazy and there is no leak or lean mixture, but the car thinks there is one, OR multiple fuel injectors are injecting more fuel than they should.
As you can imagine those last 2 scenarios are pretty unlikely.
- MAF g/s is low, so the car is getting air through a vacuum leak, OR the MAF is crazy OR the K&N intake is throwing off the MAF reading (which can happen)
- LTFT is high, meaning the front 02 sensor sees a lean mixture and the computer is adding fuel to compensate. This is consistent with a vacuum leak OR the O2 sensor is crazy
- spark plugs ran very rich, meaning the car has spent a lot of time running cold and idling OR both the MAF AND O2 sensors are crazy and there is no leak or lean mixture, but the car thinks there is one, OR multiple fuel injectors are injecting more fuel than they should.
As you can imagine those last 2 scenarios are pretty unlikely.
Update, so far they havent fitted the old intake, since they are missing a hose, but its going to be done in a couple of days. I was told the mechanic so far could not find any leak, and since they dont have an error code to go on, it was hard to diagnose . I told them the car gets rather hot and smells badly of oil. One would think that the odb2 readings would help hehe.
#67
#68
Yes those plugs ran pig rich. Here's what I feel is the situation from the observations so far
- MAF g/s is low, so the car is getting air through a vacuum leak, OR the MAF is crazy OR the K&N intake is throwing off the MAF reading (which can happen)
- LTFT is high, meaning the front 02 sensor sees a lean mixture and the computer is adding fuel to compensate. This is consistent with a vacuum leak OR the O2 sensor is crazy
- spark plugs ran very rich, meaning the car has spent a lot of time running cold and idling OR both the MAF AND O2 sensors are crazy and there is no leak or lean mixture, but the car thinks there is one, OR multiple fuel injectors are injecting more fuel than they should.
As you can imagine those last 2 scenarios are pretty unlikely.
- MAF g/s is low, so the car is getting air through a vacuum leak, OR the MAF is crazy OR the K&N intake is throwing off the MAF reading (which can happen)
- LTFT is high, meaning the front 02 sensor sees a lean mixture and the computer is adding fuel to compensate. This is consistent with a vacuum leak OR the O2 sensor is crazy
- spark plugs ran very rich, meaning the car has spent a lot of time running cold and idling OR both the MAF AND O2 sensors are crazy and there is no leak or lean mixture, but the car thinks there is one, OR multiple fuel injectors are injecting more fuel than they should.
As you can imagine those last 2 scenarios are pretty unlikely.
#70
Ok thanks, i will leave it with Mazda until the readings are normalized and all problems are fixed. Hopefully its just leak + intake issue
#71
So the dealer received missing parts earlier than expected! Just got my car back yesterday and WOW what a difference after refitting old intake:
Really happy about the numbers, but LFT1 still fluctuating between 3,1% and 7%. I was hoping for 0-2%. What is considered normal for rx-8? Seems there is still a small issue.
- Strange noise at high rpm is gone
- No more hesitation at high rpm
- The oil smell still there but barely present
- O2 ring still glowing after rough drive
- Engine power back to 80%-85% id say!
Really happy about the numbers, but LFT1 still fluctuating between 3,1% and 7%. I was hoping for 0-2%. What is considered normal for rx-8? Seems there is still a small issue.
#73
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Awesome. So they replaced the intake with stock? Everyone with the Typhoon garbage needs to read this thread.
The last bit that concerns me is the O2 ring glowing. That's NOT ok. Your cat temp looks within spec, but I remain concerned that your catalytic converter is blocked. Don't let them tell you it's fine until they have taken it down and examined it. They won't be the ones paying for a new engine if you let this continue.
The last bit that concerns me is the O2 ring glowing. That's NOT ok. Your cat temp looks within spec, but I remain concerned that your catalytic converter is blocked. Don't let them tell you it's fine until they have taken it down and examined it. They won't be the ones paying for a new engine if you let this continue.
#74
What numbers should Maf show ? Loki yeah, I'll force them to take down the cat and check it properly. Yep good old stock intake now. Thanks for all the help so far, really appreciate it!!
#75
Awesome. So they replaced the intake with stock? Everyone with the Typhoon garbage needs to read this thread.
The last bit that concerns me is the O2 ring glowing. That's NOT ok. Your cat temp looks within spec, but I remain concerned that your catalytic converter is blocked. Don't let them tell you it's fine until they have taken it down and examined it. They won't be the ones paying for a new engine if you let this continue.
The last bit that concerns me is the O2 ring glowing. That's NOT ok. Your cat temp looks within spec, but I remain concerned that your catalytic converter is blocked. Don't let them tell you it's fine until they have taken it down and examined it. They won't be the ones paying for a new engine if you let this continue.
I've also booked a compression test 😊