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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Dealer Calls and Says "Did you modify the cars Engine Control Unit?"..re:fuel Pump



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      04-04-2007, 02:42 PM   #45
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Quote:
Originally Posted by bimport View Post
Do you mean to tell me that running 60+ whp and 90+ wtq requires no more fuel than stock. So if the PROcede was making 1000 hp there would be no greater strain on the fuel pump? Why do you think people have to upgrade their fuel pumps as they make more power?
It depends on his driving style. If he curises more, he might even stress the fuelpump less compared to stock. (leaner cruise mode in the procede.)

I seriously doubt he is using full throttle all day.
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      04-04-2007, 02:44 PM   #46
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Originally Posted by bimport View Post
Some people on this board will believe anything Shiv says. Do you mean to tell me that running 60+ whp and 90+ wtq requires no more fuel than stock. So if the PROcede was making 1000 hp there would be no greater strain on the fuel pump? Why do you think people have to upgrade their fuel pumps as they make more power?

How is the fuel pump not directly related to the car's ECU (PROcede)? The ECU controls the fuel pump.
Again, with this specific issues, the number of fuel pump's failed in 335i's is MUCH greater than 335's with ECU mods.

This is in now way the fault of ANY tuning done to the car. My fuel pump failed before i modified anything in my car.

Also, i'm not sure if im correct in this argument but i know that with the Procede, for example, an LEANER a/f ratio is run, requiring LESS fuel. seems to me that is inconsistent with your argument.
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      04-04-2007, 02:46 PM   #47
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Didn't say it didn't affect the part.

Saying the part was bad anyway, and would have failed whether or not there was increased demand on the pump, because it was manufactured defective. Did you not read that part?

Good pumps handle the additional (modest) load just FINE. That is why the ones that start to go bad start going bad during things like starting the car, when the fuel demands are greater than cruising. Are you suggesting that if his fuel pump went bad that if he hadn't ever had the Procede, it would NOT have gone bad?

Please, that's just ignorance or wishful thinking on your part.

I thought we already had established that early pumps were prone to failure and shortened life? So what if the PRocede expends that life quicker, it still fails well short of the designed life of the pump and well within the warranty period.

I'm no apologist-- if his turbos blew up, his engine fried, or the ECU was damaged, hey-- pay to play, and we all do what we have to do.

But when we see dozens of techs confirming that there are hundreds of people bringing in faulty early-make pumps, trying to pin it on the muthaf'n TIRES-- that is bullshit served with caviar.
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      04-04-2007, 02:50 PM   #48
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Quote:
Originally Posted by CEA 3 View Post
Directly related to the problem from what the techs just told me.

And procede doesnt put any more stress on your fuel pump.

Im not arguing with you...if a cars motor blew up and someone had a chip on it, then you have to pay to play and that might be their fault.

this is not the case... i have a bad fuel pump, and NOT one aftermarket part on my car is directly related to it... PERIOD!

man do you work for BMW and browse forums to try and void peoples warranty or something?
First I agree it's chicken-shit that they don't want to cover the part, but the argument would be extra horsepower increases the load on the fuel system. It might not increase the physical pressure, but definitely the volume of fuel passing through. Maybe these are volume related failures?
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      04-04-2007, 02:50 PM   #49
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Quote:
Originally Posted by bimport View Post
Some people on this board will believe anything Shiv says. Do you mean to tell me that running 60+ whp and 90+ wtq requires no more fuel than stock. So if the PROcede was making 1000 hp there would be no greater strain on the fuel pump? Why do you think people have to upgrade their fuel pumps as they make more power?

How is the fuel pump not directly related to the car's ECU (PROcede)? The ECU controls the fuel pump.
The fuel pump with the PROCEDE is running at around 85% efficiency. If you know anything about turbo charging, its that eventually, YOU WILL have to upgrade your injectors, pump, etc.

I liken this to when I first bought my Supra. a Stage 1 kit to have it running around 320whp did not need to have anything upgraded because the fuel system was not maxed out.

It's 330whp, not 1000whp. Don't be dramatic.
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      04-04-2007, 02:52 PM   #50
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Quote:
Originally Posted by sstarch1 View Post
Again, with this specific issues, the number of fuel pump's failed in 335i's is MUCH greater than 335's with ECU mods.

This is in now way the fault of ANY tuning done to the car. My fuel pump failed before i modified anything in my car.

Also, i'm not sure if im correct in this argument but i know that with the Procede, for example, an LEANER a/f ratio is run, requiring LESS fuel. seems to me that is inconsistent with your argument.
The procede actully runs MUCH RICHER afr under full load, and has higher fuel demands than a non-modded car...(when driven hard) ask shiv, it does

But of course, this DID NOT cause the pump to fail... they are dropping like flies, mods or no mods...
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      04-04-2007, 02:55 PM   #51
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Quote:
Originally Posted by lkraven View Post
So what if the PRocede expends that life quicker, it still fails well short of the designed life of the pump and well within the warranty period.
I already stated that his fuel pump could have gone bad without help from the PROcede. My argument was in regards to what you just posted.

So should BMW replace your PROceded fuel pumps for free whenever they go bad? So if a PROceded fuel pump only lasts 5,000 miles BMW should be obligated to replace your fuel pump 5 times under warranty?
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      04-04-2007, 02:59 PM   #52
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Quote:
Originally Posted by RiXst3r View Post
..this DID NOT cause the pump to fail... they are dropping like flies, mods or no mods...
Correct.
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      04-04-2007, 02:59 PM   #53
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Quote:
Originally Posted by bimport View Post
I already stated that his fuel pump could have gone bad without help from the PROcede. My argument was in regards to what you just posted.

So should BMW replace your PROceded fuel pumps for free whenever they go bad? So if a PROceded fuel pump only lasts 5,000 miles BMW should be obligated to replace your fuel pump 5 times under warranty?
i dont think anyone would think that is what BMW should do, but in this case here, and in fact, all of the fuel pumps that have malfunctioned/broke, they should be replaced no questions asked.
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      04-04-2007, 03:08 PM   #54
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Quote:
Originally Posted by CEA 3 View Post
Damn Photoshop!

Bimport, lets here your reasoning that PROcede can cause a fuel pump go to go bad, since PROcede actualy keeps the factory settings for fuel.

Please explain how a bad fuel pump can be my fault With or without PROcede..

I would love to hear your educated answer.
I'm not trying to cause problems here, but the fact that you covered up that you had a PROcede means that even you think it might have had something to do with it. if you were so confident it didn't, why remove it and pretend you never had it?

again, not trying to cause problems, just making an observation
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      04-04-2007, 03:09 PM   #55
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Quote:
Originally Posted by scott brown View Post
I'm not trying to cause problems here, but the fact that you covered up that you had a PROcede means that even you think it might have had something to do with it

if you were so confident it didn't, why remove it and pretend you never had it?

Same reason you slow down when you see a cop?
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      04-04-2007, 03:12 PM   #56
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The fact remains that CEA 3 voided his warranty when he installed the PROcede. BMW does not have to replace the fuel pump because the warranty has been voided.
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      04-04-2007, 03:18 PM   #57
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Quote:
Originally Posted by sstarch1 View Post
Same reason you slow down when you see a cop?
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Quote:
Originally Posted by bimport View Post
The fact remains that CEA 3 voided his warranty when he installed the PROcede. BMW does not have to replace the fuel pump because the warranty has been voided.
BMW's excuse for denying warranty was for his tires, not this. Even if they suspected ECU related mods, they didn't blame the reason on that in the end.
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      04-04-2007, 03:18 PM   #58
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Originally Posted by sstarch1 View Post
Same reason you slow down when you see a cop?
But I only slow down if i'm speeding...
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      04-04-2007, 03:18 PM   #59
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Quote:
Originally Posted by bimport View Post
The fact remains that CEA 3 voided his warranty when he installed the PROcede. BMW does not have to replace the fuel pump because the warranty has been voided.
Again, this is hazy becuase what if his stereo started malfunctioning and they wanted to blame that on the Procede.

Not happening. There has to be a direct link, cause (Procede) to effect (Fuel Pump breaking).

In this instance, the cause did not lead to the effect, so even IF his warranty is considered void b/c of the Procede, (which is not in his car, and they cant prove he ever had it in there), the fuel pump would have to be fixed b/c it is a design defect.
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      04-04-2007, 03:19 PM   #60
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NO fuel pump this early in it's lifespan should fail, tuned car or not, as long as it is operating within its efficiency range, period. If a tuned car was requesting beyond 100% of the pump's capacity, thats a different story. This is not the case at all.

Blaming a fuel pump on tires? Come on. You think they would do that to some old lady that had a different size tire on the car? Don't think so. Tire size is irrelevant anyway since various sizes can have the same rolling diameter, or very similar to.

So watch out everyone with aftermarket rims, you're throwing codes! lol.

Good luck cea.

Besides, the dealer has no evidence of a tuned ecu. I hate dealers.

Oh yeah, one more thing... an entire warranty CANNOT be voided due to a modification, only the aftermarket part itself, or part/parts DIRECTLY related to the modification. In the later case it still has to be proved that the aftermarket part caused the problem.

Last edited by astris; 04-04-2007 at 03:43 PM..
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      04-04-2007, 03:26 PM   #61
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Quote:
Originally Posted by astris View Post
Tire size is irrelevant anyway since variuos sizes can have the same rolling diameter, or very similar to.
Heck, why not blame victims for not properly monitoring and adjusting their tyre pressure within the tolerances of half a psi?
that would cause a change in rolling diameter too.
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      04-04-2007, 03:31 PM   #62
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Quote:
Originally Posted by sstarch1 View Post
Again, this is hazy becuase what if his stereo started malfunctioning and they wanted to blame that on the Procede.

Not happening. There has to be a direct link, cause (Procede) to effect (Fuel Pump breaking).

In this instance, the cause did not lead to the effect, so even IF his warranty is considered void b/c of the Procede, (which is not in his car, and they cant prove he ever had it in there), the fuel pump would have to be fixed b/c it is a design defect.
PROcede and Fuel Pump = Direct Link

One of PROcede's selling points is that it controls the fuel, as does the stock ECU. How is the fuel pump not directly related to the ECU? The PROcede (cause) caused the fuel pump to die (effect).
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      04-04-2007, 03:32 PM   #63
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Quote:
Originally Posted by scott brown View Post
I'm not trying to cause problems here, but the fact that you covered up that you had a PROcede means that even you think it might have had something to do with it. if you were so confident it didn't, why remove it and pretend you never had it?
again, not trying to cause problems, just making an observation
Now that is a stupid question. Obviously because you are dealing with folks so unscrupulous they will try to claim changing your tires made your FP go bad, and thats even when they have a semi-recall going on the FP's with back orders because they cant replace them as fast as they are failing.
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      04-04-2007, 03:34 PM   #64
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Quote:
Originally Posted by bimport View Post
PROcede and Fuel Pump = Direct Link

One of PROcede's selling points is that it controls the fuel, as does the stock ECU. How is the fuel pump not directly related to the ECU? The PROcede (cause) caused the fuel pump to die (effect).
So then why are all the people who have done nothing to the car having bad fuel pumps...? Is the cause a defective fuel pump from the factory for them? While "tunes" 335 owners are ruining perfectly good fuel pumps?
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      04-04-2007, 03:36 PM   #65
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Quote:
Originally Posted by bimport View Post
PROcede and Fuel Pump = Direct Link

One of PROcede's selling points is that it controls the fuel, as does the stock ECU. How is the fuel pump not directly related to the ECU? The PROcede (cause) caused the fuel pump to die (effect).
the pump would have died on the car even if it never had the procede, that is the whole point!

the pump itself is causing the failure, because its DEFECTIVE!!!!!!!!
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      04-04-2007, 03:43 PM   #66
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Quote:
Originally Posted by scott brown View Post
I'm not trying to cause problems here, but the fact that you covered up that you had a PROcede means that even you think it might have had something to do with it. if you were so confident it didn't, why remove it and pretend you never had it?

again, not trying to cause problems, just making an observation
The thing here is, although it might not be the direct cause of the pump failure, it might be an easy target for the dealer to put the blame on. Why risk it?

No amount of saliva can be used to defend the procede to a stealership if they are "convinced" that it caused the problem.

Expect a response similar to
"Hay..I've been working on bmw for XX years...and I know my shiz.."
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