Knowledge base on Peake codes for E39 M5 - Page 3 - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

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post #21 of 966 Old 3rd August 2007, 06:33 PM
Nabio
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Gary, if indeed that is a 0b, which I agree it may be, I'd definitely say replace your bank 2 CPS (drivers side). I couldn't tell you off-hand if it was intake or exhaust, but I suggest you listen to how your beast runs both at idle and between 2500-3500 RPMs. If you hear a slightly off and muted yet a little louder exhaust note then its probably your exhaust CPS. You could always play it safe and replace both...

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post #22 of 966 Old 3rd August 2007, 07:47 PM
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Thanks Guys. The exhaust tone does sound differently so I'll start with that one. I've reset the codes so when it trips next, I'll pay closer attention to if it is a "B" or a "6".

Thanks for your help.
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post #23 of 966 Old 4th August 2007, 04:38 AM
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Where did you get E8 = Pedal position sensor? I got E8 and it is evaporative purge control valve check (or something like that) in my manual...

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post #24 of 966 Old 6th August 2007, 06:49 PM
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Quote:
Originally Posted by jcrist View Post
Just got Codes 90, 91 and b3. At the track about 2 weeks ago they had run out of 93 and I filled up 1 and 1/2 times with 100. When I told a tech at the dealership he metioned that my o2's should have gone crazy.
Went back to the track this weekend and used 93 all weekend, car ran great. I have driven it only 20 miles other than back and forth to the track (150 miles total). After the track I drove to DC (3 hours) and back. On the way back, the SES light came on and I got these codes.
Has to have been the gas, I will edit this post after I run it by the dealer and get their input.
I got codes 91 and b3 - did you get any luck on finding out what they are?
Interesting I put a full tank of 98RON in (wouldnt dare put less than 95 in).
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post #25 of 966 Old 7th August 2007, 04:22 AM
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Codes

ok..so now I'm getting these codes:

B2 - “Catalyst system efficiency, Cyl #1-4”
E8 - Evaporative emission purge valve functional check

I've been clearing the E8 code as nothing seems wrong. But he B2 code is new.

Anyone have more info on code B2?

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post #26 of 966 Old 2nd November 2007, 09:46 PM
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Ok, I'm sure I'll regret asking this question, but I'm tripping code 68. I noticed that there IS no code 68 on the above list of Peake codes.

BTW, it is not a mis-read of code 6A, because I'm also tripping code 6A. Is the letter 'B' displayed in lower case on the Peake reader? I know the letter 'A' is displayed in upper case, so I'm not sure why 'B' would be lower case.

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Last edited by wilsodh; 2nd November 2007 at 09:51 PM.
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post #27 of 966 Old 2nd November 2007, 10:03 PM
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Hey Dave,
see the second post in this thread

You are indeed seeing code b8.
The problem is with the Peake reader's LCD - there are only 7 distinct lines on the LCD, they have to make the "B" lower case because if they made it upper case it would look like a number 8 and then you would misdiagnose your problem as idle speed controller instead of what it is (passenger side intake CPS).

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post #28 of 966 Old 2nd November 2007, 10:10 PM
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Thanks Ian.. I knew I'd regret asking, but I appreciate the clarification!

Dave

'00 Royal Red/black/walnut M5
100% options, angel eye upgrade

'El Diablo'
’00 Black/black DA s/c M5
Carrillo rods, Arias pistons,
Schrick cams, Vortech T-trim,
Supersprint headers/exhaust,
UUC, Koala driveshaft/differential,
Dinan Stage 3 suspension, Brembo
~Built by Shadowman & Black M5~
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post #29 of 966 Old 2nd November 2007, 10:32 PM
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Don't regret asking, at least you didn't guess a different code!
The reason I wrote that second post and know b8 specifically is because I ran into the same code earlier this year and it took me a couple of readings of the code and going to the peake website before I realized my misreading problem.

I felt even "stupider" because I have a EE degree and should have understood the LCD limitations inherently instead of slapping my forehead days later.

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post #30 of 966 Old 20th December 2007, 06:08 PM
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Which Peak Reader?

I checked the Peak website, but they don't have the M5 listed when choosing which reader to purchase. Which model should I get?
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