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      02-24-2009, 09:50 PM   #23
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Quote:
Originally Posted by untouchableE82 View Post
i feel sorry for you man, its been a long time since you had this problem.
Tell me about it.. when you buy a BMW and mods that cost big bucks you don't expect problems like these but hey things happen... now I have to wait on alot of mods like rims, coils, lip and all that stuff as I don't feel confident until I fix this issue.
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      02-24-2009, 10:34 PM   #24
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Another reason I'm afraid to go anywhere near the engine of my car. Hope you get the problem resolved soon.
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      02-25-2009, 12:02 PM   #25
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Quote:
Originally Posted by 1LazyBmw View Post
Don't have a boost gauge.. Well after I get the resistors and reinstall the o2 plus use the bt tool to check it all out we'll see.. the worse thing is that its friggin cold here and the conditions for me to work on my car is horrible.. if all outs fails I'll remove all my mods back to normal and use the BT tool to remove all codes and go to the dealership (just dont want to unstall stuff which cost $$$ like the DPs if thats not the issue). This will probably occur during march as I have not recieved the replacement resistors and the BT tool I got from Mike hasn't arrived yet.
Every turbo charged car should have a boost gauge, especially if you plan to mod the vehicle. That modding 101.

Quote:
Originally Posted by 1LazyBmw View Post
Tell me about it.. when you buy a BMW and mods that cost big bucks you don't expect problems like these but hey things happen... now I have to wait on alot of mods like rims, coils, lip and all that stuff as I don't feel confident until I fix this issue.
Any time you mod a car you should expect problems. Doesn't mean you will encounter them every time but you need to be prepared in case you do.
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      02-25-2009, 12:06 PM   #26
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Quote:
Originally Posted by Evolved View Post
Every turbo charged car should have a boost gauge, especially if you plan to mod the vehicle. That modding 101.



Any time you mod a car you should expect problems. Doesn't mean you will encounter them every time but you need to be prepared in case you do.
Well there isn't many good boost gauges out yet.. if anything I am waiting for the OEM looking one from Rixeffects.. as for problems I understand however I've tried many ways and am willing to pay for it as long as it gets resolved. IE: getting the o2sim for a catted downpipe.. paying for the obd2 reader.. paying for a BT scanning tool.. I am even going to remove all my mods to bring it in to a dealership soon just to make sure.. money isn't the problem.. its time.. and making sure the problem is fixed.. and if it is the HPFP not being stranded int he middle of no where is also a big factor here..

And yes I agree a boost gauge is a must if you are going to mod along with a scanning tool like the BT one that just came out..
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      02-27-2009, 08:31 PM   #27
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It sounds like your car went into "Limp Mode". My 135 was doing the same thing. I would be driving and under very heavy throtle it would go limp and the light would come on which would only enable about 50% of my power. Once I restarted the motor everything went back to normal.

It has to do with your amb temps and which JB3 you have. The JB3 does really bad under 40F with the 1.1 or 1.21. The 1.22 corrects the cold weather problem.

Chris
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      02-27-2009, 08:35 PM   #28
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Quote:
Originally Posted by cjnichls View Post
It sounds like your car went into "Limp Mode". My 135 was doing the same thing. I would be driving and under very heavy throtle it would go limp and the light would come on which would only enable about 50% of my power. Once I restarted the motor everything went back to normal.

It has to do with your amb temps and which JB3 you have. The JB3 does really bad under 40F with the 1.1 or 1.21. The 1.22 corrects the cold weather problem.

Chris
Nah.... nothing to do with JB3.. this was happening prior to my JB3 install and I also have the 1.22 now...
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      02-27-2009, 09:25 PM   #29
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I just had my HPFP replaced and my problems were almost exactly what you are describing. Once you get the ODBII tool run the diag and see if you get and immanent failure of the HPFP.

Quote:
Originally Posted by 1LazyBmw View Post
Well honestly if I knew the catted DPs were going to throw the same codes as the catless I could have saved $400.00 going catless and non coated.. I just spend a whole lot to get a whole less.. and more issues.. and I don't think its the HPFP because I've been driving this for 3 months and it disappears like another member said once I restart the car and if I drive casually it doesn't even come on.. I guess I got to wait for the resistors and the BT tool to do a diagnositics and reinstall..
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      02-27-2009, 09:41 PM   #30
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Quote:
Originally Posted by baseballbreath View Post
I just had my HPFP replaced and my problems were almost exactly what you are describing. Once you get the ODBII tool run the diag and see if you get and immanent failure of the HPFP.
So the tool will be able to tell me if it is a failure due to the HPFP?

I just got the tool but am having issues installing it...
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      02-28-2009, 05:14 PM   #31
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Ok here we go.. After using the BT tool to diagnose my car I got 3 codes.. 2 that are the usual DP codes which I am getting new resistors from RR to fix because mine broke from my O2.. but here is the reason why my car goes into reduced power mode and no it is not HPFP.. nor is there any codes related to the fuel pump...

This is the result of why I get it:

30FF:
30FF Exhaust fume turbo charger, low pressure side
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Event 1 Odometer 17664kms 10975miles
ambient pressure 997.66 hPa
ambient temperature -8.25 °C
pressure in front of throttle valve 126.00 kPa
speed 3,520.00 rpm

So who can help me resolve this or any ideas how to get rid of this issue?

Or is this the result of HPFP.. need the technical guys on the forum to chim in..thanks.
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      02-28-2009, 05:20 PM   #32
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What mods are on this car (all of them)?

That sounds like something is going on with a bypass valve, or something else on the inlet side of the turbo.
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      02-28-2009, 05:23 PM   #33
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pressure in front of throttle valve 126.00 kPa = 18.274 PSI.

My guess is you got a boost spike because something wasn't doing its job. The ECU thinks there's exhaust gasses getting piped back into the intake maybe.
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      02-28-2009, 05:24 PM   #34
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Quote:
Originally Posted by jeremyc74 View Post
What mods are on this car (all of them)?

That sounds like something is going on with a bypass valve, or something else on the inlet side of the turbo.
RR intake
RR Scoops
RR Plenum
RR Oil Catch Can
RR Catted Downpipes
JB3 1.22

Those are the performance mods on my car.

As stated on my first post... this happened after I installed the RR dp.. might not be related but i guess the timeline is right on.. prior to this problem I only had oil catch can, bms single intake and SSTT.
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      02-28-2009, 05:25 PM   #35
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Quote:
Originally Posted by jeremyc74 View Post
pressure in front of throttle valve 126.00 kPa = 18.274 PSI.

My guess is you got a boost spike because something wasn't doing its job. The ECU thinks there's exhaust gasses getting piped back into the intake maybe.
Does that mean my car is running at 18 PSI once I push my car past 3500 rpm? That'd be pretty insane..
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      02-28-2009, 05:26 PM   #36
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I'd reset it and see if it happens again. If it does I'd start swapping parts back to stock, starting with the oil catch can.

It may just be that something strange happened while the adaptation was taking place with the new DPs though.
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      02-28-2009, 05:28 PM   #37
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Quote:
Originally Posted by 1LazyBmw View Post
Does that mean my car is running at 18 PSI once I push my car past 3500 rpm? That'd be pretty insane..

I'd say most likely it means that boost spiked for longer than expected after the throttle plate closed, but I'm just guessing.
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      02-28-2009, 05:31 PM   #38
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Quote:
Originally Posted by jeremyc74 View Post
I'd reset it and see if it happens again. If it does I'd start swapping parts back to stock, starting with the oil catch can.

It may just be that something strange happened while the adaptation was taking place with the new DPs though.
Aight.. well it happened while me and my mechanic was testing the car after the DP install and I did reset everything but the 3 came back and 2 are familiar as it is to do with the DPs but the 1 30FF is foreign to me.. I'll start removing one thing at a time.. hopefully i can get this done this week as I am busy.. if its just for example the oil catch can then that would be ez..

Thanks for the help.. anyone else can feel free to chim in.. the BT tool is great I'd recommend it to anyone..
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      02-28-2009, 05:35 PM   #39
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Quote:
Originally Posted by 1LazyBmw View Post
Aight.. and I did reset everything but the 3 came back and 2 are familiar as it is to do with the DPs but the 1 30FF is foreign to me.. I'll start removing one thing at a time.. hopefully i can get this done this week as I am busy.. if its just for example the oil catch can then that would be ez..

Thanks for the help.. anyone else can feel free to chim in.. the BT tool is great I'd recommend it to anyone..

No problem. Let us know how it turns out. I'm pretty impressed with the info you're getting back from that tool. That's a lot more than I get with my generic diagnostics tool.

Can you do data logging with it? Maybe set it up to monitor boost, throttle position, and RPM, and chart it out? I know CPE has posted some charts we could compare it to to see what the boost spike normally looks like as the throttle closes.
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      02-28-2009, 05:38 PM   #40
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Quote:
Originally Posted by jeremyc74 View Post
No problem. Let us know how it turns out. I'm pretty impressed with the info you're getting back from that tool. That's a lot more than I get with my generic diagnostics tool.

Can you do data logging with it? Maybe set it up to monitor boost, throttle position, and RPM, and chart it out? I know CPE has posted some charts we could compare it to to see what the boost spike normally looks like as the throttle closes.
Logging yes.. but monitoring boost I don't think so however I just had 20 minutes to play around with it as I am not at home.. but it is impressive I must say being able to activate things on demand.. do a short test to see all the fault codes.. a simple description.. to bad I don't think it can display boost on demand or that would be awesome. Maybe a future upgrade in sw for them..
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      02-28-2009, 05:44 PM   #41
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Look for manifold pressure, or something like that. It's there, they're just not calling it boost.
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      02-28-2009, 06:01 PM   #42
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Could the dp's be causing boost creep? You sometimes see that with other turbocharged cars when replacing them.
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      03-04-2009, 06:24 PM   #43
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Aight so just an update.. today was a bit warmer as in 0 degrees so I removed the oil catch can and the JB3.. used the BT tool and removed the codes.. haven't had the chance to drive it yet but will do so tomorrow as I have a company meeting which requires me to do some hwy driving.. all fingers crossed... will update tomorrow.

PS.. still on the car is the o2sim, rr catted downpipes and rr intake
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      03-05-2009, 12:54 AM   #44
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bro i dont think the oil catch can had anything to do with it, because i would believe it to come from the tune, thats what we could think of when i talked about it with my guys, so i guess just removing the tune and leaving the oil catch would have been fine but now that you remove both we will see what happens.
well im waiting to see if anything changes.
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