97 328i Diagnostic Codes - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 06-27-2006, 02:35 PM
n00b
 
Join Date: May 2006
Location: Pittsburgh, Pennsylvania
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nam328i is on a distinguished road
(Thread Starter)
97 328i Diagnostic Codes

Recently, out of the blue, my check engine light came on... The vehicle is running stock and i have disconnected the battery. I ran the OBD-II diagnostic codes and they appeared P1423 and P1421. I have had no help so far in deciphering these codes!! If anyone has had this problem or if anyone can help, I would be extremely appreciative. I plan on going to the track on saturday and I dont want to run under these conditions if serious. Thanks again...
nam328i is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 06-27-2006, 04:23 PM
5th Gear Member
 
RexKing86's Avatar
 
Join Date: Mar 2005
Location: Dayton, OH
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
RexKing86 is an unknown quantity at this point
Send a message via AIM to RexKing86
lol, I have a 1997 328i as well. They both have to do with emission problems. i forget which is which, but one is for your secondary air pump, and the other is O2 sensors. Im assuming your millage is somewhere in the 90-120k range. Unless you have an insteaction comming up they aren't a dyer emergency, but replacing the O2's will probably help your mpg. I just replaced my pre-cat O2 sensors and it took care of one fault code. Now I just need to do the SAP. Start by replacing you Pre-cat O2 sensors... (theres 2 before and two after the cat. blows cuz each is like $120)

RexKing86 is offline  
#3 (permalink) Old 06-27-2006, 08:57 PM
1st Gear Member
 
Join Date: Jul 2005
Posts: 294
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hamfisted is on a distinguished road
Secondary air pump and gate valve...

This is a pretty routine failure on the E36 cars (P1423 & P1421 at the same time...). The secondary air pump seizes up due to condensation caused by a leaky gate valve. You need to replace both the air pump and the gate valve to solve your problem.

Parts Needed:
--One (1) secondary air pump (BMW part no. 11 72 1 744 490; list price $199.00)
--One (1) non-return valve (Gate Valve) (BMW part no. 11 72 1 744 255; list price $94.50)
--One (1) gasket for non-return valve (BMW part no. 11 72 7 505 259; list price $3.95)


How-To article:
http://forums.bimmerforums.com/forum...ad.php?t=92029








Secondary air pump....
Secondary Air Pump in the E36....

















Mike

Last edited by Hamfisted; 06-27-2006 at 09:01 PM.
Hamfisted is offline  
#4 (permalink) Old 06-27-2006, 09:52 PM
5th Gear Member
 
RexKing86's Avatar
 
Join Date: Mar 2005
Location: Dayton, OH
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
RexKing86 is an unknown quantity at this point
Send a message via AIM to RexKing86
right on the money! Where were you about 2 months ago when I was having this problem Mike?!

btw, is it hard to do. I only do basic thngs on my car like oil changes, replaces O2's brakes, etc. You think I could handle it?

~Kingo

RexKing86 is offline  
#5 (permalink) Old 06-28-2006, 12:03 AM
n00b
 
Join Date: May 2006
Location: Pittsburgh, Pennsylvania
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nam328i is on a distinguished road
(Thread Starter)
Diagnostic code trouble...

I appreciate the help...i did hear a few grinding noises from the secondary air pump a while back...i was told i just need a new filter but the only way to do it is to replace the whole shebang . With only 83k i guess its just a routine upkeep deal. Thanks again
nam328i is offline  
#6 (permalink) Old 06-28-2006, 12:07 AM
n00b
 
Join Date: May 2006
Location: Pittsburgh, Pennsylvania
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nam328i is on a distinguished road
(Thread Starter)
Yay or Nay?

With this occurrence, my motor feels to run faultless....is heading to the track in 5 days a good idea if no visible problems have occurred yet? used:
nam328i is offline  
#7 (permalink) Old 06-28-2006, 12:32 AM
5th Gear Member
 
RexKing86's Avatar
 
Join Date: Mar 2005
Location: Dayton, OH
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
RexKing86 is an unknown quantity at this point
Send a message via AIM to RexKing86
The only thing the SAP does occording to what ive read is basically turn on for the first 2-3 mins the car is turned on. It wont cause any damage really from what ive heard. Just let her get nice and warm before you mess around.

RexKing86 is offline  
#8 (permalink) Old 06-28-2006, 12:37 AM
5th Gear Member
 
RexKing86's Avatar
 
Join Date: Mar 2005
Location: Dayton, OH
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
RexKing86 is an unknown quantity at this point
Send a message via AIM to RexKing86
btw- heres the thread I started and got help from...

http://www.bimmerwerkz.com/forum/3-s...des-45669.html

you will get some answers there!

RexKing86 is offline  
#9 (permalink) Old 06-28-2006, 09:31 AM
my car is red
 
94BMW325i's Avatar
 
Join Date: Dec 2004
Location: Newark, Delaware
Posts: 5,747
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of 94BMW325i has much to be proud of
Send a message via AIM to 94BMW325i Send a message via Yahoo to 94BMW325i
secondary air pump is an OBD 2 feature right? I am glad that I have OBD 1 sometimes.



member and partial creator of pimpin the auto club
94BMW325i is offline  
#10 (permalink) Old 06-29-2006, 02:41 AM
3rd Gear Member
 
tomctx's Avatar
 
Join Date: Feb 2005
Location: Georgia
Posts: 693
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
tomctx is an unknown quantity at this point
Quote:
Originally Posted by 94BMW325i
secondary air pump is an OBD 2 feature right? I am glad that I have OBD 1 sometimes.

Yes, OBD II feature. I have heard that Active Autowerke makes a simulator for the secondary air pump for about $150. I guess it replaces the pump and valve. MIght want to call Active and check, could save some money.

Oh, and both codes refer to the air pump and air valve, no o2 sensors.

1995 325I, window tint, K&N, debaffled airbox, BMW #104 wheels, Nighthawk low beams, smoked side markers, smoked corners, smoked taillights, M3 stlye heated mirrors, various interior bits, Bosal cat-back.

Last edited by tomctx; 06-29-2006 at 02:44 AM.
tomctx is offline  
#11 (permalink) Old 06-29-2006, 05:45 PM
5th Gear Member
 
RexKing86's Avatar
 
Join Date: Mar 2005
Location: Dayton, OH
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
RexKing86 is an unknown quantity at this point
Send a message via AIM to RexKing86
so this deletes the whole system?? im assuming its a stupid thing in the first place... will it pass emissions with out it? my bad about the O2 sensor code. I would still change them tho...

RexKing86 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
BMW specific OBD II codes: Anywhere? Gator 3-Series (E36) 6 11-20-2005 10:20 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome