I have a 95 Talon TSI with a 14b turbo. Ive posted a thread on here before questioning fuel cut. They told me to re-wire my fuel pump. And I did just that, to take in to consideration Iam hitting fuel cut at 12 lbs but if i boost at 11lbs iam fine but Ill only hit 11 at WOT. Now if iam in town ill only hit 10lbs. But my question is why is my car still hitting fuel cut. Is there anything else i can do to stop it from doing this, without going out and paying the 370 dollars for the dsm link v3.
tried almost everything
doubleturbo
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I have a 95 Talon TSI with a 14b turbo. Ive posted a thread on here before questioning fuel cut. They told me to re-wire my fuel pump. And I did just that, to take in to consideration Iam hitting fuel cut at 12 lbs but if i boost at 11lbs iam fine but Ill only hit 11 at WOT. Now if iam in town ill only hit 10lbs. But my question is why is my car still hitting fuel cut. Is there anything else i can do to stop it from doing this, without going out and paying the 370 dollars for the dsm link v3.
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Re: tried allmost everything
Are you pulling any logs? Im having similar issues.8, 10, its fine. Any thing over that, I miss fire. I don't think its fuel cut for me as mine starts poping and miss firing. It's my understanding that fuel cut is like hitting a brick wall, ie: ecu cuts fuel completely. Mine is still trying to deliver fuel. If you're logging, what are your maf Hz at when this happens? No matter how much boost I run, my maf won't read higher than 1599 Hz. I'm sure thats below fuel cut criteria.
Are you pulling any logs? Im having similar issues.8, 10, its fine. Any thing over that, I miss fire. I don't think its fuel cut for me as mine starts poping and miss firing. It's my understanding that fuel cut is like hitting a brick wall, ie: ecu cuts fuel completely. Mine is still trying to deliver fuel. If you're logging, what are your maf Hz at when this happens? No matter how much boost I run, my maf won't read higher than 1599 Hz. I'm sure thats below fuel cut criteria.
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Re: tried allmost everything
Fuel cut has nothing to do with fuel people. It's all about the amt. of airflow the ECU sees. The colder is it outside, the less boost required to hit fuel cut. You want to get rid of it for a while? Throw in some 550/660cc injectors, buy an AFC and dial the fuel back accordingly. It's not the RIGHT way, but it works...to an extent.
Fuel cut has nothing to do with fuel people. It's all about the amt. of airflow the ECU sees. The colder is it outside, the less boost required to hit fuel cut. You want to get rid of it for a while? Throw in some 550/660cc injectors, buy an AFC and dial the fuel back accordingly. It's not the RIGHT way, but it works...to an extent.
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Re: tried allmost everything
log plus wideband is answer to WTF.
log plus wideband is answer to WTF.
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Re: tried allmost everything
OP, as stated above (and I can't believe I forgot to say the same) you need to do a BLT. Find out where your leaking air and fix it. Do you have a logger or access to one? WB?
We know that. Or at least I do. You're saying a 14b @ 12psi, on a 2g maf is hitting fuel cut? Then why should 1g guys uprade to a 2g maf if its so easy to hit fuel cut with it. Not attacking just trying to see what I'm missing.
OP, as stated above (and I can't believe I forgot to say the same) you need to do a BLT. Find out where your leaking air and fix it. Do you have a logger or access to one? WB?
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Re: tried allmost everything
As for the OP, my suggestion is to find the very large boost leak that is inflating his airflow numbers that the ECU is seeing.
Are YOU hitting fuel cut with that combination? If you don't have larger injectors to compensate for the ~20% added airflow resulted from the 2G MAS, then either you are running VERY lean, or are adding in 20% via an AFC, which WILL cause you to hit fuel cut MUCH MUCH sooner than you would with a 1G MAF. This is all assuming on a 1G.
As for the OP, my suggestion is to find the very large boost leak that is inflating his airflow numbers that the ECU is seeing.
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Re: tried allmost everything
I have a product from apexi that has A/F, O2 voltage, battery voltage, and the timmer. The A/f is allways at 20 until i let off the throttle and it will go as low as 15. I know for a fact that iam running rich because iam getting carbon build up on my rear bumper. And as for the O2 voltage its usually around .02 or .01 and again when I let off it can go as high at allmost to .20.
Now you have to relize that ive only had this car for a few months. When i got it, it had a off brand frount mount. and i could shift at 6g no problem... no fuel cut. But i upgraded to a Goddspeed frount mount with 2.5 inch hard pipping. and now iam hitting fuel cut.
I have a product from apexi that has A/F, O2 voltage, battery voltage, and the timmer. The A/f is allways at 20 until i let off the throttle and it will go as low as 15. I know for a fact that iam running rich because iam getting carbon build up on my rear bumper. And as for the O2 voltage its usually around .02 or .01 and again when I let off it can go as high at allmost to .20.
Now you have to relize that ive only had this car for a few months. When i got it, it had a off brand frount mount. and i could shift at 6g no problem... no fuel cut. But i upgraded to a Goddspeed frount mount with 2.5 inch hard pipping. and now iam hitting fuel cut.
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Re: tried allmost everything
Get a datalogger or a wideband. As far as your O2 voltage, if it's always reading .01 or .02, means your O2 sensor is dead. Replace it.
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As for my o2 sensor which one could it be? Also my check engine light is on. I work at a Ford dealer and I took our code reader and read my engine codes. It said its a p0125 which is ECT temp. or in other words my coolent is to hot. now could this engine code have something to do with my o2 sensor.
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Try checking your plugs and wires. I had something similar, and I was a dumbass and checked EVERYTHING else. A few months later I finally did as I was told and changed my plugs. $10 problem solver. And if it did it after the IC install, make sure you have no boost leaks.
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I just checked my plugs last weekend and they are the ngk r. They are gapped at .28. Could this be that my TPS needs to be re adjusted to the right position. Like to the right voltage...
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Re: tried allmost everything
No, no, I'm still on the 1g maf. My main point was how in the world he could be hitting fuel cut in a 2g on a 14b @ a lousy 12psi short of boost leak. I was also trying to determine if fuel cut is in fact what he's experiencing rather than a nasty misfire. I must have misunderstood your post. Was also trying to get some insight into my problem without highjacking the thread.
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Re: tried allmost everything
That's really about the only way the OP could hit fuel cut, is a big boost leak. Send me a link to your issue and I'll see if I can troubleshoot it.
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I just went out today and while rolling in first gear I put it preety close to the floor. At about 5500 it made 3 loud popping noises. I didnt get a chance to see where my boost gauge jumped or anything i was more watching my rpms and the road. But to the smart ones out there.....Is my problem fuel cut or a nasty missfire?.....
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I'm assuming you don't have a logger or WB? have you done a BLT?
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Sounds like fuel cut. Fuel cut feels like you hit a wall, accompanied by a very loud bang, sounding like you just blew a hole in your motor. After that bang, the car should instantly return to normal, until you hit fuel cut conditions again. A misfire is a constant stuttering.
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Again with the O2 sensor, on a cold start it will still read .01 or even .00. Obviously my oxygen sensor is dead. Now if i replace my o2 sensor will this help with my fuel cut?
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