Hiccups under load (V2 + DPs)

seven_227 · 01-26-2008, 03:36 AM

Noticable hiccups under accelration, when overtaking, some times under WOT. I drove the car hard until I got the temp to 120C (250F), and the hiccups went away.

I started the car again today drove it while its cold and the hiccups are back, less this time. Modes on the car include turbo-back exhaust, K&n drop in, and PROcede V2 at 94%.

Idle and cranking is perfect no problems there.
Could it be the sprak plugs? (seems to go away when temp rises)

stillclaimndp · 01-26-2008, 04:28 AM

Quote:

Originally Posted by seven_227

Noticable hiccups under accelration, when overtaking, some times under WOT. I drove the car hard until I got the temp to 120C (250F), and the hiccups went away.

I started the car again today drove it while its cold and the hiccups are back, less this time. Modes on the car include turbo-back exhaust, K&n drop in, and PROcede V2 at 94%.

Idle and cranking is perfect no problems there.
Could it be the sprak plugs? (seems to go away when temp rises)

i dont think you're supposed to run over 90% on 2.02 map if you have downpipes but I don't think that is what is causing the "hiccups" as yo call them... 2.1 will probably solve any issues you are having.

OpenFlash · 01-26-2008, 05:07 AM

You'll need to let the car fully warm up before booting the car around. Especially if you are running catless. A downpipe specific map will help matters by controlling boost rise rate. But basic warm up caveats still apply. Not a big deal when the car was stock and max boost was 6-8psi at full throttle. A much bigger deal when 13-15psi and achievable with only partial throttle.

Shiv

seven_227 · 01-26-2008, 09:32 AM

Thank you guys.
So is this supposed to be normal with DPs?
BTW I just came back and I've been driving for 2.5 hours, not a single hiccup.

seven_227 · 01-26-2008, 09:35 AM

Quote:

Originally Posted by stillclaimndp

i dont think you're supposed to run over 90% on 2.02 map if you have downpipes but I don't think that is what is causing the "hiccups" as yo call them... 2.1 will probably solve any issues you are having.

Well I ran on 95% for a couple of days and I still didnt reach the max boost of 15psi. I got it back to 94% and the max recorded boost was 14.4 psi.

Serjames · 01-26-2008, 09:37 AM

The car does take a LOT of warming up, with no DP's and a cold day mine seems really sluggish before it's ready.

You can feel lots of retard when you push it before it wants to.

SJ

seven_227 · 01-26-2008, 09:45 AM

Mine was perfectly fine, it only started after installing the DPs.

seven_227 · 01-26-2008, 12:21 PM

Ok my car just threw codes: 1146, 0420, 0430.

I got that codes 420, 430 are the O2 sensors codes and it must be the DPs that've caused them, but I couldnt find what code 1146 stands for in the booklet. Can anyone help out?

e90AW335i · 01-26-2008, 01:11 PM

This sounds similar to a problem that another member had on cold starts. Do you have the speed limiter defeat in? (green loom)

OpenFlash · 01-26-2008, 02:41 PM

Quote:

Originally Posted by seven_227

Ok my car just threw codes: 1146, 0420, 0430.

I got that codes 420, 430 are the O2 sensors codes and it must be the DPs that've caused them, but I couldnt find what code 1146 stands for in the booklet. Can anyone help out?

Install o2 simulators. You can't run catless in these cars without some sort of o2 sensor signal manipulation.

Shiv

e90AW335i · 01-26-2008, 02:51 PM

Quote:

Originally Posted by shiv@vishnu

Install o2 simulators. You can't run catless in these cars without some sort of o2 sensor signal manipulation.

Shiv

Shiv, is this feature available on V2 yet?

OpenFlash · 01-26-2008, 02:55 PM

Quote:

Originally Posted by kyleh4852

Shiv, is this feature available on V2 yet?

It's currently being tested on our car. Will be available in beta form within the next couple of weeks. So far so good.

Shiv

e90AW335i · 01-26-2008, 02:56 PM

Quote:

Originally Posted by shiv@vishnu

It's currently being tested on our car. Will be available in beta form within the next couple of weeks. So far so good.

Shiv

Good to hear Shiv.

Serjames · 01-26-2008, 10:29 PM

Quote:

Originally Posted by shiv@vishnu

It's currently being tested on our car. Will be available in beta form within the next couple of weeks. So far so good.

Shiv

good'O DPs arrive in three weeks or so so perfect timing !

SJ

seven_227 · 01-26-2008, 10:34 PM

Quote:

Originally Posted by shiv@vishnu

It's currently being tested on our car. Will be available in beta form within the next couple of weeks. So far so good.

Shiv

Thats great

But do we have to intercept any more wires for this function?

M3to335 · 01-27-2008, 10:14 AM

Quote:

Originally Posted by seven_227

Thats great

But do we have to intercept any more wires for this function?

+1 subscribed

335iheLLraiseR · 01-28-2008, 04:01 AM

Quote:

Originally Posted by seven_227

Thats great

But do we have to intercept any more wires for this function?

yes, its a "Y" cable that he needs to provide.

midlife · 01-28-2008, 08:47 AM

Quote:

Originally Posted by seven_227

Noticable hiccups under accelration, when overtaking, some times under WOT. I drove the car hard until I got the temp to 120C (250F), and the hiccups went away.

I started the car again today drove it while its cold and the hiccups are back, less this time. Modes on the car include turbo-back exhaust, K&n drop in, and PROcede V2 at 94%.

Idle and cranking is perfect no problems there.
Could it be the sprak plugs? (seems to go away when temp rises)

not trying to be rude, but regarding your comment:
"I drove the car hard until I got the temp to 120C (250F), and the hiccups went away"
why on earth would you run your 335 hard bEFORE you get engine to normal operating temp??

IMHO, i would have a problem doing that even if the car was a lease.

01-26-2008, 03:36 AM	#1
seven_227 Lieutenant 65 Rep 590 Posts Drives: AW e92 335i Join Date: May 2007 Location: Dubai iTrader: (0)	Hiccups under load (V2 + DPs) Noticable hiccups under accelration, when overtaking, some times under WOT. I drove the car hard until I got the temp to 120C (250F), and the hiccups went away. I started the car again today drove it while its cold and the hiccups are back, less this time. Modes on the car include turbo-back exhaust, K&n drop in, and PROcede V2 at 94%. Idle and cranking is perfect no problems there. Could it be the sprak plugs? (seems to go away when temp rises) __________________
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01-26-2008, 05:07 AM	#3
OpenFlash 1818 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	You'll need to let the car fully warm up before booting the car around. Especially if you are running catless. A downpipe specific map will help matters by controlling boost rise rate. But basic warm up caveats still apply. Not a big deal when the car was stock and max boost was 6-8psi at full throttle. A much bigger deal when 13-15psi and achievable with only partial throttle. Shiv
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01-26-2008, 09:32 AM	#4
seven_227 Lieutenant 65 Rep 590 Posts Drives: AW e92 335i Join Date: May 2007 Location: Dubai iTrader: (0)	Thank you guys. So is this supposed to be normal with DPs? BTW I just came back and I've been driving for 2.5 hours, not a single hiccup. __________________
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01-26-2008, 09:37 AM	#6
Serjames Colonel 132 Rep 2,426 Posts Drives: E93 335i M-sport Join Date: May 2007 Location: Surrey - UK iTrader: (0) Garage List 2007 E93 335i M Spo ... [0.00] 2003 Nissan Primera S [0.00]	The car does take a LOT of warming up, with no DP's and a cold day mine seems really sluggish before it's ready. You can feel lots of retard when you push it before it wants to. SJ __________________
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01-26-2008, 09:45 AM	#7
seven_227 Lieutenant 65 Rep 590 Posts Drives: AW e92 335i Join Date: May 2007 Location: Dubai iTrader: (0)	Mine was perfectly fine, it only started after installing the DPs. __________________
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01-26-2008, 12:21 PM	#8
seven_227 Lieutenant 65 Rep 590 Posts Drives: AW e92 335i Join Date: May 2007 Location: Dubai iTrader: (0)	Ok my car just threw codes: 1146, 0420, 0430. I got that codes 420, 430 are the O2 sensors codes and it must be the DPs that've caused them, but I couldnt find what code 1146 stands for in the booklet. Can anyone help out? __________________
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01-26-2008, 01:11 PM	#9
e90AW335i Major General 145 Rep 6,608 Posts Drives: e90 335i Join Date: Sep 2007 Location: ...... iTrader: (4)	This sounds similar to a problem that another member had on cold starts. Do you have the speed limiter defeat in? (green loom) __________________ I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
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