So yesterday my husband was driving behind me and we were playing games, I down shifted and rolled out. He told me that he noticed black smoke at high RPMs right before I shifted. He said it got thicker the higher up I got in RPMs. He also said that it didn't go away when I shifted from 3rd to 4th....but it did thin out. He didn't see anything when I was just driving normal. Any ideas?
I have newish plugs (about 4 months old) but they are just standard, wires look good, no mods yet except for the CAI that was there when I bought it. I had very little gas in the car at the time, the light wasn't on or anything, about 1/8 a tank. Please help if you can
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Boys will be boys, but girls will be fast !
Wouldn't the CAI make it lean? if i am correct rich is too much fuel, and lean is too much air... So the CAI would make it run leaner, to run richer you might have bad injectors, fuel pump rail, etc.
I have newish plugs (about 4 months old) but they are just standard, wires look good, Please help if you can
what do you mean by wires look good we have Coil over plugs, what type of oil do you use, change your oil, when i use to run mobil 1 i would have a little smoke come out but now i use Royal Purple and there is no smoke at all, try changing your plugs and oil and see what it does, start cheap.
Wouldn't the CAI make it lean? if i am correct rich is too much fuel, and lean is too much air... So the CAI would make it run leaner, to run richer you might have bad injectors, fuel pump rail, etc.
If that is the only mod the car might be sensing the leqan condition and over compensating for it. Who knows what the ECU is seeing right now. I would go back to stock and reset the ECU and see if the issue goes away. Start with the simple things first.
If that is the only mod the car might be sensing the leqan condition and over compensating for it. Who knows what the ECU is seeing right now. I would go back to stock and reset the ECU and see if the issue goes away. Start with the simple things first.
My bad, i forgot that the ECU compensates for things like Intakes and Exhausts... It could be over-compensating, might be a mixture of that and something else making it run *rich too
My bad, i forgot that the ECU compensates for things like Intakes and Exhausts... It could be over-compensating, might be a mixture of that and something else making it run *rich too
It doesn't compensate for it.Thats the problem.At WOT/Open Loop the ECU no longer uses feed back from the O2 sensors.The stock tune is pig rich uptop (WOT) from the factory.OP nees to get a tune,thats all.Other than that it's completely normal.Not to say checking the plugs/gap and cleaning the MAF sensor wouldn't be a bad idea.
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Aarg matey!
ECU Pirated by RomRaider
Are ya sure about that? I'm pretty sure than the ECU does compensate. Well, not 100% sure on the Subaru, but my friend's Scion tC's ECU adjusts the AFRs when we threw on a CAI, after a couple hours of driving around it made more power all of a sudden, and same with the exhaust systems we put on the car. It would start changing the sound of the tone after a couple hours and then he would notice that the ECU i guess compensated and made it run better, idk i never knew they could do that, but apparently it did
You are comparing apples to oranges Subeast. That was kind of a problem when the tuners starting tuning the cars cause of the open loop/WOT and the ECU being out of the pictures.
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Joshua
"Stage 2 WOOOOHOOOO, I love it."
Might be something to do with that shitty gas you have been putting in. Lower octane issue. You KNOW now you can't do that. Take the CAI off. Do you have the stock box and all that ? Bet you got the plugs pre-gapped and slapped them on, didn't you
this is a long carried out issue, we all know our cars run rich from factory, tune will fix, but personally not entirely necessary. unless a large amounts of smoke, i wouldn't worry about it.
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rollin on 17's now and they're dirty
Are ya sure about that? I'm pretty sure than the ECU does compensate. Well, not 100% sure on the Subaru, but my friend's Scion tC's ECU adjusts the AFRs when we threw on a CAI, after a couple hours of driving around it made more power all of a sudden, and same with the exhaust systems we put on the car. It would start changing the sound of the tone after a couple hours and then he would notice that the ECU i guess compensated and made it run better, idk i never knew they could do that, but apparently it did
No.I have no idea what I'm talking about.We are so not even close to being on the same page here considering turbo cars a diffent beast and both are different cars.These are not Scions.No offense dude but I have been working on cars for almost 20 years and have owned and worked on a WRX for almost 4 years.Do you even own a WRX?You can take a stock WRX and put a TBE and an intake on it and it will make a very noticable amount of power.Does this mean the ECU has compensated to make power?Absolutley not.You can put an intake and exhaust on almost any car and make power, but don't think the ECU is any part of this.It will try to trim out fuel to hit it's target 14.7:1 in Closed loop for emissions but for both MAP and MAF by using the O2 sensors,but in Openloop the ECU is not using O2 feedback and is going strictly off a precalculated set of data that cannot be compensated for except for tuning.
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Aarg matey!
ECU Pirated by RomRaider
No.I have no idea what I'm talking about.We are so not even close to being on the same page here considering turbo cars a diffent beast and both are different cars.These are not Scions.No offense dude but I have been working on cars for almost 20 years and have owned and worked on a WRX for almost 4 years.Do you even own a WRX?You can take a stock WRX and put a TBE and an intake on it and it will make a very noticable amount of power.Does this mean the ECU has compensated to make power?Absolutley not.You can put an intake and exhaust on almost any car and make power, but don't think the ECU is any part of this.It will try to trim out fuel to hit it's target 14.7:1 in Closed loop for emissions but for both MAP and MAF by using the O2 sensors,but in Openloop the ECU is not using O2 feedback and is going strictly off a precalculated set of data that cannot be compensated for except for tuning.
It doesn't compensate for it.Thats the problem.At WOT/Open Loop the ECU no longer uses feed back from the O2 sensors.The stock tune is pig rich uptop (WOT) from the factory.OP nees to get a tune,thats all.Other than that it's completely normal.Not to say checking the plugs/gap and cleaning the MAF sensor wouldn't be a bad idea.
.We are so not even close to being on the same page here considering turbo cars a diffent beast and both are different cars.These are not Scions.No offense dude but I have been working on cars for almost 20 years and have owned and worked on a WRX for almost 4 years.Do you even own a WRX?You can take a stock WRX and put a TBE and an intake on it and it will make a very noticable amount of power.Does this mean the ECU has compensated to make power?Absolutley not.You can put an intake and exhaust on almost any car and make power, but don't think the ECU is any part of this.It will try to trim out fuel to hit it's target 14.7:1 in Closed loop for emissions but for both MAP and MAF by using the O2 sensors,but in Openloop the ECU is not using O2 feedback and is going strictly off a precalculated set of data that cannot be compensated for except for tuning.
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