Engine Malfunction after Charge Pipe / DV Install?

Brey335i · 10-27-2010, 02:38 AM

So I just finished installing my Forge Diverter Valves and my new Charge Pipe. Took the car for a quick shopping trip to Walmart and everything felt great...

Then as I was giving it some from a stop suddenly the car made some strange V8 noises from the engine and an "Engine Malfunction" warning popped up. The car never went into limp mode and drove fine afterwards... although it sounded a little funny when going above 2000 rpm.

I'm gonna scan the thing tomorrow after I wake up, too tired now. I double checked and nothing has come loose in the engine bay after my install. I was just wondering if anyone knew what might be the cause of the problem.

Note: The Procede was not installed during this. The car was pushing stock boost.

Cyruz · 10-27-2010, 04:39 AM

check to make sure the charge pipe didnt unseat its self from the throttle body.

enrita · 10-27-2010, 04:42 AM

you have a leak, recheck everything. The code you have is probably the underboost one.

Ghines1279 · 10-27-2010, 05:52 AM

Did it go away after restart? I had something like that happen once, It was like the car Hick-uped and was ok after restart. Freaked me out how the car sounded.

Brey335i · 10-27-2010, 10:18 AM

It went away after restart but still sounded a little funny

I'll recheck the leaks and scan to see the fault code after breakfast

Thanks guys

Kevin@AKMotorwerk · 10-27-2010, 10:23 AM

Quote:

Originally Posted by Brey335i

It went away after restart but still sounded a little funny

I'll recheck the leaks and scan to see the fault code after breakfast

Thanks guys

check to make sure the tmap sensor is plugged in and that you didnt break the green o'ring that seals it, alot of the powder coated charge pipes have too much powder coating on the bore that the sensor sits into, and if you dont remove the coating then the sensor would have to be forced into the bore and break the o'ring in most cases.

Bimmer This · 10-27-2010, 10:27 AM

Quote:

Originally Posted by enrita

you have a leak, recheck everything. The code you have is probably the underboost one.

+1. Most likely a leak somewhere. Recheck clamps and hoses.

Brey335i · 10-27-2010, 01:14 PM

oops. Rechecked everything and sure enough. It had slid off the throttle body

M3 Eater · 10-27-2010, 04:41 PM

Quote:

Originally Posted by Kevin@AKMotorwerk

check to make sure the tmap sensor is plugged in and that you didnt break the green o'ring that seals it, alot of the powder coated charge pipes have too much powder coating on the bore that the sensor sits into, and if you dont remove the coating then the sensor would have to be forced into the bore and break the o'ring in most cases.

done this before...ill bet you forgot to plug in t map sensor!

10-27-2010, 02:38 AM	#1
Brey335i Banned 112 Rep 4,771 Posts Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX iTrader: (11)	Engine Malfunction after Charge Pipe / DV Install? So I just finished installing my Forge Diverter Valves and my new Charge Pipe. Took the car for a quick shopping trip to Walmart and everything felt great... Then as I was giving it some from a stop suddenly the car made some strange V8 noises from the engine and an "Engine Malfunction" warning popped up. The car never went into limp mode and drove fine afterwards... although it sounded a little funny when going above 2000 rpm. I'm gonna scan the thing tomorrow after I wake up, too tired now. I double checked and nothing has come loose in the engine bay after my install. I was just wondering if anyone knew what might be the cause of the problem. Note: The Procede was not installed during this. The car was pushing stock boost.
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10-27-2010, 04:39 AM	#2
Cyruz Captain 82 Rep 619 Posts Drives: Montego Blue 335i Join Date: Nov 2006 Location: NY iTrader: (0) Garage List 2007 335i [0.00] 2007 335i [0.00]	check to make sure the charge pipe didnt unseat its self from the throttle body. __________________ Living on the fringe of lunacy my zenfolio photo gallery
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10-27-2010, 04:42 AM	#3
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	you have a leak, recheck everything. The code you have is probably the underboost one. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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10-27-2010, 05:52 AM	#4
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	Did it go away after restart? I had something like that happen once, It was like the car Hick-uped and was ok after restart. Freaked me out how the car sounded.
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10-27-2010, 10:18 AM	#5
Brey335i Banned 112 Rep 4,771 Posts Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX iTrader: (11)	It went away after restart but still sounded a little funny I'll recheck the leaks and scan to see the fault code after breakfast Thanks guys
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10-27-2010, 01:14 PM	#8
Brey335i Banned 112 Rep 4,771 Posts Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX iTrader: (11)	oops. Rechecked everything and sure enough. It had slid off the throttle body
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