In these logs AFR = Lambda * 14.7. So it's more or less Lambda...CrazyCanadian wrote: ↑June 28th, 2026, 2:08 am Log in Lambda... Stop living 20 years ago thinking in AFR's...
Search found 1511 matches
- June 28th, 2026, 10:51 am
- Forum: Series I Tuning
- Topic: Air Fuel Ratio Base
- Replies: 5
- Views: 34574
Re: Air Fuel Ratio Base
- June 24th, 2026, 4:32 am
- Forum: MAZDASPEED3/Mazda 3 MPS Tuning
- Topic: Regarding the Removal of Speed Limits
- Replies: 5
- Views: 1645
Re: Regarding the Removal of Speed Limits
It seems the boost pressure is off too, so I decided to check the EBCS. You can look at several parameters: boost, load, whatever, but the conclusion is the same: your car is far far away from what it should do in terms of power. In your last log you used 2nd gear which is not the best because ther...
- June 22nd, 2026, 5:39 pm
- Forum: MAZDASPEED3/Mazda 3 MPS Tuning
- Topic: Regarding the Removal of Speed Limits
- Replies: 5
- Views: 1645
Re: Regarding the Removal of Speed Limits
That is absolutely fine, a 3MPS BK reaches 200kmph in 5th at about 6000rpm which is the sweet spot on these engines for peak power.
The problem with your car is that it makes probably around 180-190bhp in a good day. Either the EBCS is fitted backwards, or it is stuck closed.
The problem with your car is that it makes probably around 180-190bhp in a good day. Either the EBCS is fitted backwards, or it is stuck closed.
- June 22nd, 2026, 1:03 am
- Forum: MAZDASPEED3/Mazda 3 MPS Tuning
- Topic: Regarding the Removal of Speed Limits
- Replies: 5
- Views: 1645
Re: Regarding the Removal of Speed Limits
Stock 3MPS BK speed limit is at 250kmph or something, that is about 270kmph on the dash. 200kmph is nothing for these cars, stock or tuned, they will get there pretty fast. Next time you push it to that speed also log that run and let's see what actually happens, most likely your car developed a sma...
- June 19th, 2026, 3:31 pm
- Forum: NC2/3
- Topic: P0101 after larger throttle body install
- Replies: 8
- Views: 6588
Re: P0101 after larger throttle body install
The first two logs were damaged in transfer. The 3rd log only has the long term fuel trims, but we can see that it only goes from 2.3 to 4.7% so the deviation is well within limits. Changing the throttle body will have no effect on the MAF calibration. Also, P0101 usually pops up when the MAF voltag...
- June 4th, 2026, 8:48 am
- Forum: Gen 2 Tuning
- Topic: knock low load
- Replies: 13
- Views: 7052
Re: knock low load
Do not use an ebay timing kit. Get an OEM kit from reputable vendors: corksport, graveyard, edge, SP63, and so on. Those 150$ kits from ebay will work ok on 2.3NA engines but not on ours (they will actually work but not for long, and not properly, and you do not have all the necessary parts such as ...
- June 4th, 2026, 2:49 am
- Forum: MAZDASPEED6/Mazda 6 MPS Tuning
- Topic: Tuner MIA
- Replies: 1
- Views: 1035
Re: Tuner MIA
Well, look at the bright side... the tune you've got is... not what I'd expect from a professional tuner. Luckily the car doesn't make too much power and considering how the tune is made the car may not live long enough to ever make too much power. So seriously, follow your own advice and find anoth...
- June 3rd, 2026, 10:30 pm
- Forum: Gen 2 Tuning
- Topic: knock low load
- Replies: 13
- Views: 7052
Re: knock low load
Could it be excessive heat under the hood? No, absolutely nothing to do with the engine bay heat, which you do not have in excess BTW. And even if you did, at low loads it doesn't matter, it's actually a small amount of free energy that you push into the engine. At this stage I'd get the VVT diagno...
- June 3rd, 2026, 5:02 am
- Forum: MAZDASPEED6/Mazda 6 MPS Tuning
- Topic: MazdaSpeed6 Fuel Pressure Tuning?
- Replies: 2
- Views: 2361
Re: MazdaSpeed6 Fuel Pressure Tuning?
I do not recommend upping the fuel rail pressure targets, because with aftermarket HPFP internals the pump will already make 50-100PSI over target, and if you up the target then the pressure relief valve (which is mechanical) will work full time an will eventually fail. The flow is proportional with...
- June 3rd, 2026, 4:53 am
- Forum: Gen 2 Tuning
- Topic: knock low load
- Replies: 13
- Views: 7052
Re: knock low load
Ok. So every single time the ECU commands some cam timing, knock retard follows shortly after. Every single time, no exception. The AC may increase the load a bit and the need for the ECU to command more cam timing. So get the car checked and make sure the AC pulley bearing is not dry and about to f...