I got problems...

miiikey31 · 03-21-2012, 12:01 AM

Hey guys,
My SES light has been on for a while now and I'm working on the funds to get it fixed. My problem is that when my car sits at idle, usually at a red light or a drive-thru, the car goes on an idle hunt and sometimes stalls. I try to stop this problem by giving it a little gas, but if the car sit too long in idle it loses a sufficient amount of power. When I press the gas, I lose about 50% of the acceleration.

The e46f member that scanned this for me suggest that I get the pre-oxygen sensors replaced and then run a smoke test to check for vacuum leaks.

My question is for members who experienced similar problem like I described, How did you guys get it fixed? Also with the results I showed from the scan. What do you guys suggest I get replaced? What's wrong with my car?!?!

I got it scanned and here are the results

jbren325i · 03-21-2012, 12:34 AM

Possibly your fuel pump going bad, my car did this as well with similar codes. I replaced fuel filter and pump and problem went away

white46 · 03-21-2012, 12:37 AM

must be some sort of vacuum leaks.

I would start from checking #4 in below picture and go from there.

Also check below,
http://forum.e46fanatics.com/showthread.php?t=897616

dmax · 03-21-2012, 04:01 AM

Search 'idle surging' in the thread title. There's a long thread about it--NicB

I fixed mine...probably 99% of the solution was cleaning icv...maybe TB. I replaced the tb gasket, icv grommet, disa o-ring, lower intake boot, cleaned maf...but I think it was the icv...which was horribly gunked up. I used a can and a half of cleaner to clean it. Been good for at least a couple of years now.

03-21-2012, 12:01 AM	#1
miiikey31 Registered User Join Date: Jan 2009 Location: socal Posts: 160 My Ride: 00 BMW 323CI Coupe View My Garage	I got problems... Hey guys, My SES light has been on for a while now and I'm working on the funds to get it fixed. My problem is that when my car sits at idle, usually at a red light or a drive-thru, the car goes on an idle hunt and sometimes stalls. I try to stop this problem by giving it a little gas, but if the car sit too long in idle it loses a sufficient amount of power. When I press the gas, I lose about 50% of the acceleration. The e46f member that scanned this for me suggest that I get the pre-oxygen sensors replaced and then run a smoke test to check for vacuum leaks. My question is for members who experienced similar problem like I described, How did you guys get it fixed? Also with the results I showed from the scan. What do you guys suggest I get replaced? What's wrong with my car?!?! I got it scanned and here are the results

03-21-2012, 12:34 AM	#2
jbren325i Registered User Join Date: Aug 2010 Location: calhoun, Ga Posts: 37 My Ride: 2003 325i View My Garage	Possibly your fuel pump going bad, my car did this as well with similar codes. I replaced fuel filter and pump and problem went away __________________ 2003 325i sedan K&N INTAKE, ebay headers, REMUS EXHAUST, depo hid headlights with angel eyes, EAGLE EYE LED TAIL LIGHTS, vmr csl replica wheels 18" BFGOODRICH GFORCE 225/40/ZR18

03-21-2012, 12:37 AM	#3
white46 Registered User Join Date: Feb 2006 Location: Vancouver Canada Posts: 1,535 My Ride: e46 323ci View My Garage	must be some sort of vacuum leaks. I would start from checking #4 in below picture and go from there. Also check below, http://forum.e46fanatics.com/showthread.php?t=897616 __________________

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03-21-2012, 04:01 AM	#4
dmax Stay stock my friends! Join Date: Aug 2006 Location: Unit I Posts: 21,280 My Ride: '99 328i 1.04646 mu View My Garage	Search 'idle surging' in the thread title. There's a long thread about it--NicB I fixed mine...probably 99% of the solution was cleaning icv...maybe TB. I replaced the tb gasket, icv grommet, disa o-ring, lower intake boot, cleaned maf...but I think it was the icv...which was horribly gunked up. I used a can and a half of cleaner to clean it. Been good for at least a couple of years now.