 » Site Navigation | | | | » Recent Threads | | | |  |  |  |  03-20-2010, 05:18 PM | #1 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |  Lambda Emissions Control CEL
Greeeetings!
I have a 95 318ti active.
I keep getting an intermittent check engine light. I have the peak scanner tool and the chart says it is the emissions lambda control. I searched through here but didn't find much information and couldn't find much in the Bentley Manual...anyone have any insight as to what this could be? I read on here that the o2 sensor is a lambda sensor...but there is a seperate fault code for the o2 sensor so I am not sure what this means.
On a side note, the CEL only comes on when my foot is off the gas pedal. If I idle for a little bit, it will come on. If I am driving and take my foot off the pedal, it comes on. The instant I tap the gas pedal at all the light goes off.
I also have a code for knock cylinders 3/4 which I had replaced that sensor about 2 years ago so I would hope it is not bad again! Maybe the 2 codes are related?
-Rob
Thanks! __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync |  |  | | 03-20-2010, 05:36 PM | #2 | | Senior Member Join Date: Jan 2010 Location: Georgia Posts: 148 |
regulating lambda probe lol. that what our system here at bmw refers to the o2 sensors as. so if you can afford to, I'd guess that you should give the o2 sensors a try. if you get me that p code that your peak scanner gave you, i'll try to generate the code that bmw would use (since techs don't use p codes here at the dealer) hopefully that helps friend!! lemme know :-) __________________  It's true that we don't know what we've got until we lose it, but it's also true that we don't know what we've been missing until it arrives. | | | | | 03-20-2010, 06:02 PM | #3 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |
peak scanner tool gives me a c9 for the lambda emissions control and a 2a for the knock cylinder I believe.
I will double check the code chart when I get home where my book is.... __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync | | | | | 03-23-2010, 02:58 AM | #4 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |
confirmed....c9 was the peak code for emissions (lambda) control
2a was for knock sensor cyl 3 and 4...though i cleared the codes and the knock sensor went away but c9 continues to show up! __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync | | | | | 03-26-2010, 05:54 AM | #5 | | Senior Member Join Date: Jan 2010 Location: Georgia Posts: 148 |
Quote: Originally Posted by robcarync  confirmed....c9 was the peak code for emissions (lambda) control
2a was for knock sensor cyl 3 and 4...though i cleared the codes and the knock sensor went away but c9 continues to show up! | ok... when i go to work today, i'll see if i can generate a bmw code for you and possibly a better description of what your issue is and what you need __________________ It's true that we don't know what we've got until we lose it, but it's also true that we don't know what we've been missing until it arrives. | | | | | 04-06-2010, 04:34 PM | #6 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |
Bump...any info? __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync | | | | | 04-06-2010, 04:48 PM | #7 | | Senior Member Join Date: Mar 2010 Location: Ottawa Posts: 579 |
I would suspect a clogged or failing fuel injector | | | | | 04-16-2010, 06:59 AM | #8 | | Senior Member Join Date: Aug 2003 Location: cary, nc Posts: 2,259 |
Problem solved: upon further research, a bad crankcase ventilation valve can cause: rough idle, intermittent check engine lights, and high pitched screeching sounds...all which I had.
$70 part, 2 bolts, and a pain in the tail to get to the two bolts out/back in, but the CEL is off permanently the idle is smooth.
At first my car died a few times and I thought I made it worse by replacing the hose and valve...then I realized I was an idiot and forgot to plug back in the MAF which I had removed earlier for something else.
It sure feels good to have a smooth ride now! __________________ 1995 318ti Active
Pioneer Speakers [] Aluminum Billet door locks [] ACS Pedals/Deadrest [] ACS Shift Knob / E-Brake Handle [] Clear Corners/Tails/Sides [] Sylvania Exterior Lighting [] Custom CAI [] Dinan Engine Chip [] Dinan Transmission Chip [] H&R Race Springs [] Tokico Illumina Shocks [] BMW X-Brace [] Relocated Lighter Mod [] Custom iPod Mod http://www.cardomain.com/id/robcarync | | | | |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | |
 Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off
| | |
|
All times are GMT +1. The time now is 04:58 PM.
Linear Mode
