On-going bad spell continues between my apr car and myself

[Geoffafa]

so im finally fed up with my apr software, my car has been running like shit since i went stage two, i always figured it was something else, but ive gone over everything and nothing has changed. Car runs like rotten dog shit in third gear, and just plain old dog shit in fourth. so i call apr and ask if they can "switch my software to a new vehicle" and they tell me they stopped the transfers with 1.8t and dont do it all with the 2.0t

all in all the software has been nothing but terrible. i really want revo, but now i have to wait until my funds are adequate. since i was hoping for just a trade off... Good going APR you guys rock

[AudiWxGuy]

Give them a call at HQ. I'm sure they would be more helpful than the distributer near your house. I would be willing to bet that it's not the software, but your autotech fp combined with the software....just a thought.

[Quattro]

what have you checked with your car? Just curious, what symptoms are you having in 3rd gear and in general.

-randy

[Geoffafa]

what have you checked with your car? Just curious, what symptoms are you having in 3rd gear and in general.

-randy

ive done logs, ive checked for boost leaks, ive tried flashing it back to stock and then back to the file... the car feels like its getting a cut from somewhere, i did a pull late at night on a quiet road with my mechanic and we both came to the conclusion its boost related. it feels like the car spools and then just cuts, the tries to pick up pressure, the cuts, the time gap between these "cuts" is about 1 second intervals

[Quattro]

very interesting...if you find a remedy let me know

[Quattro]

o ya, pm sent

[AudiWxGuy]

Sounds less like a software issue and more like a fuel cut/pump issue.

[Josh_877]

Sounds less like a software issue and more like a fuel cut/pump issue.

x2, i also have the APR software and in third gear i can feel where an aftermarket fuel pump would come in handy, ESPECIALLY when i use 100 oct.

[Doctor]

Yeah but the guy had his car Reflashed, with the stock Pump, not an aftermarket one...
So it should work right...
Changing the pump isnt the solution...
The car should work as it is with a right software...

[Kuang87]

I haven't had any problems with mine and I'm running APR with an aftermarket fuel pump.

[Doctor]

The thing is the car CAN work right reflashed with the stock pump...
With an aftermarket pump, sure, it will work better and have more power and torwue in the mid range rpms...

[RedS-line]

i think that you might be maxing out your cars potential and your car just doesnt wanna handle it. revo is great since you can adjust settings after logging it but even then u might not be able to get the most out of your 2.0t until you go with a new turbo.

[Slo.Mo.Shun.]

Thing is that every thing seems to be in working order.

[Geoffafa]

Thing is that every thing seems to be in working order.

as he said, vic has been there for much of the diagnostics, and still no one can figure anything out. my shop has an a4 with the same exact mods i do, except on revo and the car runs amazing. thats also what leads me to believe that it might be APR

[AAAA]

its the software. i've had the same issues for a year and a half and have gone back and forth with apr with sour results, only to come to the conclusion that it was their software, which they admitted it was. I'm supposed to get taken care of by Keith, but as usual I'm getting ignored by APR. It's what they are best at, and why I will never buy another product from them.

[Doctor]

I will be very much surprised if it aint the software....

[davis449]

I'm gonna go ahead and say what I think several people in here are afraid to say based on not wanting to step on any toes. Your fuel pump is to blame. Here we go:

ive done logs, ive checked for boost leaks, ive tried flashing it back to stock and then back to the file... the car feels like its getting a cut from somewhere, i did a pull late at night on a quiet road with my mechanic and we both came to the conclusion its boost related. it feels like the car spools and then just cuts, the tries to pick up pressure, the cuts, the time gap between these "cuts" is about 1 second intervals

You and your mechanic are wrong. Boost cuts (loss in boost pressure) will occur when a fuel pump cuts fuel to the engine. There's no magical mystery to boost problems, there either is a leak or it isn't. Fuel cuts cause the same feeling as boost cuts, i.e. from a boost leak. My friend's Stage II APR GTI does this. Every time he gets a fuel cut, you can watch his boost guage fall to 0. He is only Stage II, though, he doesn't have a fuel pump. There is a difference between the Stage II file and the Stage II file + Fuel Pump. The regular Stage II file is setup to cut boost when needed to prevent fuel cuts from the fuel pump. The software is not perfect, hence the reason so many people get them anyway when they drive the car hard. I have no idea what file you are running from APR, but if you are running the regular Stage II, no fuel pump file, and are having issues even though you have the Auto Tech fuel pump then do the math and it's the fuel pump causing your problem because your fuel pump, in theory, should be able to keep up with whatever the software demands and if the software isn't demanding the fuel, then your pump isn't going to supply it. Hence if the software isn't demanding more fuel from your fuel pump, why would you get cuts? The same would especially be true if you were running the Stage II + Fuel Pump file from APR with the Auto Tech pump and you're getting cuts. Again, in this case, the blame would fall on the fuel pump this time for not supplying what the softare demands. It's not APR's fault you bought a fuel pump not up to the same specification as theirs.

Yeah but the guy had his car Reflashed, with the stock Pump, not an aftermarket one...
So it should work right...
Changing the pump isnt the solution...
The car should work as it is with a right software...

Not true, if there is something wrong with the pump, it could act fucked whether there's software loaded to the ECU or not.

I haven't had any problems with mine and I'm running APR with an aftermarket fuel pump.

This is mostly likely due to the fact that, like me, you are running the APR rebuilt fuel pump with the proper files and not the Auto Tech one. I've heard of many people having issues with theirs and MUCH less with APR's (not that APR's doesn't have a failure rate).

i really want revo, but now i have to wait until my funds are adequate.

Switching to Revo and jacking with the settings is going to further fuck you up.

[Bauer]

Audi has a TSB about fuel cut issues...could be cam and (stock) fuel pump related and not software.

[Doctor]

^^ could..true...
So if he goes stock again, the truth will shine...
He will have the same prob even in a smeller degree than chipped, but still if its the pump to blame, it will be obvious...

[AudiWxGuy]

Doc, he doesn't have the stock pump. He has an aftermarket one. I'm not sure if he has the file for it or not. But the pump he's got is $300 vs the OEM rebuilt APR pump that is meant to use with the software.

IMO...there is something wrong with the Autotech pump, that is causing fuel cut.

[davis449]

Audi has a TSB about fuel cut issues...could be cam and (stock) fuel pump related and not software.

Correct and this is supposed to be checked for before the pump is rebuilt. APR requires you to check for premature cam lobe wear before sending in the pump to be rebuilt.

[AudiWxGuy]

correct And This Is Supposed To Be Checked For Before The Pump Is Rebuilt. Apr Requires You To Check For Premature Cam Lobe Wear Before Sending In The Pump To Be Rebuilt.

He Does Not Have A Stock Fuel Pump!

Also..check your Forge DV. I've heard of similar things happening to people with the Forge DV. Make sure the diaphragms aren't leaking!

[Geoffafa]

I'm gonna go ahead and say what I think several people in here are afraid to say based on not wanting to step on any toes. Your fuel pump is to blame. Here we go:



You and your mechanic are wrong. Boost cuts (loss in boost pressure) will occur when a fuel pump cuts fuel to the engine. There's no magical mystery to boost problems, there either is a leak or it isn't. Fuel cuts cause the same feeling as boost cuts, i.e. from a boost leak. My friend's Stage II APR GTI does this. Every time he gets a fuel cut, you can watch his boost guage fall to 0. He is only Stage II, though, he doesn't have a fuel pump. There is a difference between the Stage II file and the Stage II file + Fuel Pump. The regular Stage II file is setup to cut boost when needed to prevent fuel cuts from the fuel pump. The software is not perfect, hence the reason so many people get them anyway when they drive the car hard. I have no idea what file you are running from APR, but if you are running the regular Stage II, no fuel pump file, and are having issues even though you have the Auto Tech fuel pump then do the math and it's the fuel pump causing your problem because your fuel pump, in theory, should be able to keep up with whatever the software demands and if the software isn't demanding the fuel, then your pump isn't going to supply it. Hence if the software isn't demanding more fuel from your fuel pump, why would you get cuts? The same would especially be true if you were running the Stage II + Fuel Pump file from APR with the Auto Tech pump and you're getting cuts. Again, in this case, the blame would fall on the fuel pump this time for not supplying what the softare demands. It's not APR's fault you bought a fuel pump not up to the same specification as theirs.



Not true, if there is something wrong with the pump, it could act fucked whether there's software loaded to the ECU or not.



This is mostly likely due to the fact that, like me, you are running the APR rebuilt fuel pump with the proper files and not the Auto Tech one. I've heard of many people having issues with theirs and MUCH less with APR's (not that APR's doesn't have a failure rate).



Switching to Revo and jacking with the settings is going to further fuck you up.

you may be right, but i would like to know what certifications u personally have to instantly negate a certified technicians assumptions on what might be wrong with MY car, i am currently with another APR stage 2 a4 driver with APR fuel pump and he can vouche personally that he still recieves the same symptoms i do with the pump, therefore we can rule out the pump issue. Im still staying by my first guess and saying its software, we (my tech and i) have driven two identical cars one with revo and one with APR, APR car has cut issues, revo doesnt. You can even hear the boost being cut, on a quiet road when it gets to the point of the cut you can actually hear the turbo spooling and stopping.

[acidrome]

Yea that is awkward, but I doubt its the autotech fuel pump. I have an autotech fuel pump w/GIAC-X and have not had one problem with it. In the contrary my car pulls even more in the mid-range rpm all the way to redline w/out one fuel cut or limp mode. My car started to get those symptoms the past 2~3 months when I would only be in 6th gear at WOT from about 95~105. Since putting on the autotech fuel pump I have yet to see any of the old issues occur, and I have driven in 100+ degree temp with a full car. Even w/my current software (which isnt the fuel pump file yet) my car has adapted to autotech fuel pump and has been even more of a blast to drive since getting it put on.

Though I have the Forge DV as well and its been amazing I would check that and possibly the PCV, if those are working in great shape I would concur to say it most likely has to do with the APR software. Either way, I hope you find/fix your problem and get your ride working the way it should.

cheers!

[Sharkfin]

could it be something wrong with your turbo?

[davis449]

He Does Not Have A Stock Fuel Pump!

Also..check your Forge DV. I've heard of similar things happening to people with the Forge DV. Make sure the diaphragms aren't leaking!

No shit, but that doesn't mean it's immune to failure.

you may be right, but i would like to know what certifications u personally have to instantly negate a certified technicians assumptions on what might be wrong with MY car, i am currently with another APR stage 2 a4 driver with APR fuel pump and he can vouche personally that he still recieves the same symptoms i do with the pump, therefore we can rule out the pump issue. Im still staying by my first guess and saying its software, we (my tech and i) have driven two identical cars one with revo and one with APR, APR car has cut issues, revo doesnt. You can even hear the boost being cut, on a quiet road when it gets to the point of the cut you can actually hear the turbo spooling and stopping.

Yeah, let me tell you something, Mr. Experience, I've had bullshit called on my expertise before by someone who wasn't "educated" nor "certified" in my field of practice and they were right, so let me be the first to tell you "your tech" isn't God. Another thing is that 2 experiences you've stated don't prove a damn thing. Because, by your undeniably stupid-ass logic, me and Kuang87 just proved it is the fuel pump, because we have no problems, smart ass.

I haven't had any problems with mine and I'm running APR with an aftermarket fuel pump.

[Geoffafa]

could it be something wrong with your turbo?

highly doubt it, we have done boost pressure test and all is up to par. no leaks from the dv, pcv has a check valve. pcv was already replaced.
my logic behind all this would have to be that the turbo spools more then what apr software request under the specific load, therefore ecu cuts boost, then realizes it is underboosting and begins to spool again, this cycle occurs repeatedly and repeats about once a second.

[minameismud]

um, IH8OEM, it probably wouldn't kill you to have your mechanic friend chuck a different fuel pump - SAME MODEL, cause for every thousand peaches, a lemon can get through - on your car to test it, tho it may damage your pride to admit you were wrong in this thread. remember: it's YOUR car, not the mechanic's. (doctors are sooo guilty of this...it's MY body, dammit, and there's something wrong!)

and c'mon, questioning someone's credentials is so twelve years old.

[acidrome]

Are you running APR's HPFP file w/the autotech fuel pump? Or are you just running the stage 2 file w/the autotech fuel pump?

[B7A4Sport]

In reading the above posts, I noticed that you flashed it back to stock, then RE-INSTALLED the APR program again? That process wouldn't prove a thing, and I don't even need to be an auto-tech to know that.

Did I miss you flashing it back to stock and leaving it there to diagnose? This simple logic would let you know if its the fuel pump or the software...if it's fine with stock software, then it's probably the APR chip; if it's still F'ed with stock software, it's probably the pump.

Sound about right?

Also, everyone take a deep breath and relax, I'm sure peope are just trying to help, and jawing with one another only brings us closer to "Bimmerzine.com" .

[B7!]

im running apr with apr pump and the car still runs like shit!

[AudiWxGuy]

Yikes...looks like I may have to a knife and fork to eat my words with.

[B7!]

it feels like they havent even done a program to accommodate the fuel pump.. i still get hesitations in 3rd and 4th at WOT... and had my cam lobe checked as well.

[Alkemix]

Well, if it was a fuel cut, wouldn't the entire engine experience a cut in power, and not just the turbo. The turbo operates on exhaust emissions from the engine spooling the turbo. An engine cut means cut in the mechanical advantage the exhaust is giving to the turbo to spool up, hence a turbo cut as well. Also, isn't there a simpler way just to log whether or not fuel requested and fuel sent are unequal? If it's software, then fuel requested will match fuel sent. If it's mechanical (pump), then fuel requested will be much higher than fuel sent.

I'm sorry if I'm feeding you guys bad info or logic. I'm not trying to act like i know more shit than i do. I'm just trying to understand this issue. This shit interests me.

[Geoffafa]

it feels like they havent even done a program to accommodate the fuel pump.. i still get hesitations in 3rd and 4th at WOT... and had my cam lobe checked as well.

im glad i can get some sort of backing here, im not the one going nuts.. there is a problem with my car, i feel its software related... i will remedy the source and chage software companies. if it continues i will gladly eatmy words and apologize. as of right now, i feel that no one should be using any language, as all i have done is ask simple question.. if i am an "asshole" then peoples ideas of the word are seriously messed up...

this forum has gone to shit. i cant post up simple feelins about a possible problem with my car with out being called an asshole by people who live and die for apr... grow up, its not that great, get out of the bubble

[quattrosaint]

ive done logs, ive checked for boost leaks, ive tried flashing it back to stock and then back to the file... the car feels like its getting a cut from somewhere, i did a pull late at night on a quiet road with my mechanic and we both came to the conclusion its boost related. it feels like the car spools and then just cuts, the tries to pick up pressure, the cuts, the time gap between these "cuts" is about 1 second intervals

Unfortunately I am having the exact same issue Checked and replaced everything from PCV Valve, DV. I did have a boost leak which APR pointed out. I fixed it, now I have full boost again but I am having the exact same 1 sec "cuts" espically around 80MPH. We have done about 4 hours of logging on the car. I am at a loss. If you do switch to REVO let me know. I am still finding it hard to believe that it is APR since there is only a few of us with this same issue. But who knows anything is possible (except for my car running right lol)

[AAAA]

I'm gonna go ahead and say what I think several people in here are afraid to say based on not wanting to step on any toes. Your fuel pump is to blame. Here we go:



You and your mechanic are wrong. Boost cuts (loss in boost pressure) will occur when a fuel pump cuts fuel to the engine. There's no magical mystery to boost problems, there either is a leak or it isn't. Fuel cuts cause the same feeling as boost cuts, i.e. from a boost leak. My friend's Stage II APR GTI does this. Every time he gets a fuel cut, you can watch his boost guage fall to 0. He is only Stage II, though, he doesn't have a fuel pump. There is a difference between the Stage II file and the Stage II file + Fuel Pump. The regular Stage II file is setup to cut boost when needed to prevent fuel cuts from the fuel pump. The software is not perfect, hence the reason so many people get them anyway when they drive the car hard. I have no idea what file you are running from APR, but if you are running the regular Stage II, no fuel pump file, and are having issues even though you have the Auto Tech fuel pump then do the math and it's the fuel pump causing your problem because your fuel pump, in theory, should be able to keep up with whatever the software demands and if the software isn't demanding the fuel, then your pump isn't going to supply it. Hence if the software isn't demanding more fuel from your fuel pump, why would you get cuts? The same would especially be true if you were running the Stage II + Fuel Pump file from APR with the Auto Tech pump and you're getting cuts. Again, in this case, the blame would fall on the fuel pump this time for not supplying what the softare demands. It's not APR's fault you bought a fuel pump not up to the same specification as theirs.



Not true, if there is something wrong with the pump, it could act fucked whether there's software loaded to the ECU or not.



This is mostly likely due to the fact that, like me, you are running the APR rebuilt fuel pump with the proper files and not the Auto Tech one. I've heard of many people having issues with theirs and MUCH less with APR's (not that APR's doesn't have a failure rate).



Switching to Revo and jacking with the settings is going to further fuck you up.

I have identical issues, but my boost gauge doesn't go to 0, it just drops down a few psi, then back up a couple psi. i have the fuel pump, and it did this on apr chipped software, as well as k04 software. APR ADMITTED that it was their software.

[Geoffafa]

I have identical issues, but my boost gauge doesn't go to 0, it just drops down a few psi, then back up a couple psi. i have the fuel pump, and it did this on apr chipped software, as well as k04 software. APR ADMITTED that it was their software.

Enough said.... Admittion from APR. Thank you

[B7!]

yeah i have apr ko4 as well