CEL from race pipes

[Sleeper 362]

Have yall not tried using some form of Mil eliminator or something? they are pretty cheap for one ($30) and I bet it would stop a lot of problems before they started. I know they have them for stangs and I couldn't imagine things being much different from one 02 sensor to another.


I see a lot of reckless crap going on around these parts when it comes to modding, then I read the complaints of how these cars are crap the minute one blows up. A few words of wisdom that come to mind when I read these things:


"You increased the boost by double without adding any fuel and you wonder why you popped?"

"They are called death knobs because they kill your engine, not you."

Not a know it all, just want some people to not make the same mistakes I have made.

 

[wisniaPl]

wtf you wont get cel with race pipe......there is no O2 sensors there.....
maybe you are thinking about dp(shady)

 

[Sleeper 362]

wtf you wont get cel with race pipe......there is no O2 sensors there.....
maybe you are thinking about dp(shady)

That is what I am talking about. A Race oriented DP. I should have made it clearer, still new to the lingo. In stangs you had four cats, two per cylinder bank. In most on road mid pipes on them you eliminated one set of cats and you turned the other set into a highflow cats. Even with the 2 cats still in it you would get a CEL. You had to plug in these mil eliminators that plug in line with the 02 sensor and the car harness 02 connector and it was bye bye CEL. No matter what you did to your exhaust you would not see any CEL with these, even with no cats. For 30 bucks they were good insurance that your car would run clean and properly with all your exhaust mods. And since it didn't involve tuning or changing anything it was completely safe. Just don't know why people aren't using them on the Mazdas. OH well I know nothing.

 

[ericrapp]

Some of the exhausts are using an extended bung for second O2 or defoulers in the downpipe. This is supposed to correct the possible cel. from what i have read here.

 

[wisniaPl]

That is what I am talking about. A Race oriented DP. I should have made it clearer, still new to the lingo. In stangs you had four cats, two per cylinder bank. In most on road mid pipes on them you eliminated one set of cats and you turned the other set into a highflow cats. Even with the 2 cats still in it you would get a CEL. You had to plug in these mil eliminators that plug in line with the 02 sensor and the car harness 02 connector and it was bye bye CEL. No matter what you did to your exhaust you would not see any CEL with these, even with no cats. For 30 bucks they were good insurance that your car would run clean and properly with all your exhaust mods. And since it didn't involve tuning or changing anything it was completely safe. Just don't know why people aren't using them on the Mazdas. OH well I know nothing.

people are using them on mazdas cs dp comes with extender that eliminates cel

 

[Sleeper 362]

Cool Cool. I was just wondering why so many people will go out and buy a DP eliminate the cat and not spend an extra $30 for something that can eliminate a lot of headaches.

 

[jp4130]

Cool Cool. I was just wondering why so many people will go out and buy a DP eliminate the cat and not spend an extra $30 for something that can eliminate a lot of headaches.

Now you can do this the right way, the cobb AccessPORT elimenates that cel. No messing around trying to trick sensors.

 

[Sleeper 362]

Is that like a tuner or something?

 

[wisniaPl]

Now you can do this the right way, the cobb AccessPORT elimenates that cel. No messing around trying to trick sensors.

how does it do it?? when you instal map it elminates cels from cause by exhaust?

 

[ericrapp]

Tricking?

Now you can do this the right way, the cobb AccessPORT elimenates that cel. No messing around trying to trick sensors.

The accessport is just tricking the ecu and costs alot more. I do realize that it provides many other excellent features . but two O2 sensors are just doing a comparison to make sure the cat is working. From what I hear. And the performance upgrade of pipe is nice. If you have a soft code. scan it to be sure its not serious to you. You can do this for free at auto parts store.

 

[Sleeper 362]

The accessport is just tricking the ecu and costs alot more. I do realize that it provides many other excellent features . but two O2 sensors are just doing a comparison to make sure the cat is working. From what I hear. And the performance upgrade of pipe is nice. If you have a soft code. scan it to be sure its not serious to you. You can do this for free at auto parts store.

See I know on the domestic side that is all they are doing is seeing if there is less fumes from one sensor to the other. All the 02 eliminator does is put some resistance in the signal from the sensor to the computer giving it a lower reading from one to the other. It is totally passive and gets the job done for cheap. I know some tuners would rather put o2 eliminators on a car than tune out the cel. Less garbage the computer has to deal with. It also cuts the tune time a bit shorter which means you may save as much as you paid for them when paying someone to tune your stuff by the hour.

 

[ericrapp]

Yes that is about how I understand it. I would love to hear about one of us speed 3s having full control over the motor. While being kinda street legal.

 

[Sleeper 362]

Yes that is about how I understand it. I would love to hear about one of us speed 3s having full control over the motor. While being kinda street legal.

Only reason why I haven't started modding mine yet. All I plan on is doing a drop in K&N maybe a BPV/BOV. Not going to mod until I can figure out or someone who knows something about anything figures out what the A/Fs are supposed to be when dealing with this direct injection crap. Maybe the same as normal 11.8 to 1, maybe lower, or maybe higher. I know its off the charts rich delivered from Mazda stock which under normal circumstances is almost as dangerous as being lean, but they seem to be doing fine, just a lot of soot. There is a lot of power being left on the table if the same physics take place between direct injection, and port injection. I bet you can get away with being leaner in theory. But I already have one car sitting with a F'd up A/F don't need two.

 

[ericrapp]

Patience

Only reason why I haven't started modding mine yet. All I plan on is doing a drop in K&N maybe a BPV/BOV. Not going to mod until I can figure out or someone who knows something about anything figures out what the A/Fs are supposed to be when dealing with this direct injection crap. Maybe the same as normal 11.8 to 1, maybe lower, or maybe higher. I know its off the charts rich delivered from Mazda stock which under normal circumstances is almost as dangerous as being lean, but they seem to be doing fine, just a lot of soot. There is a lot of power being left on the table if the same physics take place between direct injection, and port injection. I bet you can get away with being leaner in theory. But I already have one car sitting with a F'd up A/F don't need two.

Measuring as many things as possible, a/fr egt and the detonation signals sent to adjust timing through the ecu, would let you play with fuel and timing i would guess. I am sure folks have solved this but I have not seen any Tuning shops giving us a proven methodical build to Maximum performance yet. But some nice projects are out there for sure. The car is very young and a limited production. All in good time!

 

[Sleeper 362]

Yeah if I didn't have the stang sucking up all my mod money I would have been all over this car like flies on poop. Warrenty? Who needs them when you do your own maintenance?(actually I do since I am an old man and am tired of replacing clutches and the sort) I am tired of being the guinee pig for all these cars. I have an excellent tuner in the area that I trust with my life that I will go to eventually. He would probably love to get his hands on this car, but I am still unsure about the whole direct injection thing. One thing I will tell you, if the same A/Fs are relevant from port injection to direct injection, we are leaving at least 25 at the wheels on the table with the pig rich a/f. I heard someone say on here that it was because Mazda was taking into account the mods we are going to do (CAI, DP, ect.) I just laughed, dumb thoughts like that will cost you a motor.

 

[ericrapp]

25hp, I would like to think more like twenty-five Percent is in there. if you loosen up flow a bit. But yep this car was designed for the tuner to tune. When you hand it over to your guy let me know what he thinks about fuel delivery, the injectors ,pump, duty cycles and the throttle plate.Feel free to pm me I would like to learn more about what the tuners are doing with our cars. thanks

 

[Sleeper 362]

25hp, I would like to think more like twenty-five Percent is in there. if you loosen up flow a bit. But yep this car was designed for the tuner to tune. When you hand it over to your guy let me know what he thinks about fuel delivery, the injectors ,pump, duty cycles and the throttle plate.Feel free to pm me I would like to learn more about what the tuners are doing with our cars. thanks

Well I just spoke to my tuner a few minutes ago and he is actually tuning the strongest one in the nation. Some guy named Randy's. I'm gonna give randy a call here in a few. He basically told me that there is all sorts of **** that these cars do. Like close the throttle plate after 6K and torque restrictions and stuff like that. He said that they are just now getting around to where they are getting full control of the simple engine activities. He said the pumps suck the fuel delivery is crazy, and when you do things that normally do things, they don't do those things and often do the exact opposite. He said the tuning solutions for it are coming around and we are in for some happy days soon. Right now he is tuning it with a piggy back and they are developing a working flash for it as we speak. Your 25% increase prediction on tune alone may not be far off the mark.

 

[ericrapp]

Well I just spoke to my tuner a few minutes ago and he is actually tuning the strongest one in the nation. Some guy named Randy's. I'm gonna give randy a call here in a few. He basically told me that there is all sorts of **** that these cars do. Like close the throttle plate after 6K and torque restrictions and stuff like that. He said that they are just now getting around to where they are getting full control of the simple engine activities. He said the pumps suck the fuel delivery is crazy, and when you do things that normally do things, they don't do those things and often do the exact opposite. He said the tuning solutions for it are coming around and we are in for some happy days soon. Right now he is tuning it with a piggy back and they are developing a working flash for it as we speak. Your 25% increase prediction on tune alone may not be far off the mark.

If your boy ain't just readin' the forums and jerking you that sounds about to be my understanding.The Ecu is a tough nut. Some guys are making pretty damn good power all day with car. I still want to know the details. feel free to pm. My tuner does not have my car yet as I have been buying bolt ons that I, can do, and I am in the handling section of suspension crap right now. Keep me and us updated.Thanks Sleeper