Fuel problem - 1988 325 - code 1222 - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 06-29-2008, 07:17 AM
n00b
 
Join Date: Jun 2008
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Gigarod is on a distinguished road
(Thread Starter)
Fuel problem - 1988 325 - code 1222

Hi,
I was getting a 1222 code.
Checked for vacuum leaks etc... (in fact I took the intake off yesterday to check and clean everything).

Things evolved to the point were the motor would run for 10 seconds then stop.
Was the same after the work (...pleasure of course...) I did yesterday.
Well, I just went outside, took the gas cap off and started the car. It ran for 2 or 3 minutes before missing a beat!
Major development! In fact it just misses once in a while. I have the impression I could go for a drive!

Now many things come to mind (gas tank vents, fuel pressure, pumps etc...).
What do I do next?
Gigarod is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 06-29-2008, 01:16 PM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
This code is stored when the DME detects excessive
deviations in the air-fuel mixture (too rich or too lean) for longer
than 10 seconds.

Possible causes:
1)Fuel tank low/empty, clogged fuel filter giving you incorrect Fuel Pressure,
or you have a failing fuel pump
2)Injector valve defective or coked,
3)Engine Temperature Sensor defective,
4)Secondary air leak,
5)Fuel evaporation control system defective,
6)Air Flow Meter defective; and/or
7)Combustion is being disturbed by mechanical failure (Spark plugs, compression, intake/exhaust valves, ...etc.)

I suggest u look at #1 first; then #7 next.

Good Luck
darkhorse737 is offline  
#3 (permalink) Old 06-29-2008, 01:24 PM
n00b
 
Join Date: Jun 2008
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Gigarod is on a distinguished road
(Thread Starter)
Thanks, I've been through the literature...
I've been looking for vacuum leeks and stuff in fact, that's why I took the intake off. You know, to check the injectors, gaskets etc...

As I said, I took the gas cap off (you know, the cap you take off to put fuel in the tank) and the motor ran much better. This is why I am directing my attention there.

So if I know that my problem is about fuel supply, where do I start trouble shooting?
Gigarod is offline  
#4 (permalink) Old 06-29-2008, 01:51 PM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
fuel filter first. If clean, then have your fuel pressure checked. You need at least 43 psi to keep ur engine running.

*check also the fuel pressure regulator at the end of the injection rail. oftentimes, the vacuum hose pops out, and it wont regulate the way it should.

Good Luck
darkhorse737 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


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
Code 1222: Still screwing with me a year later mullethunter3 3-Series (E36) 12 06-17-2008 12:30 PM
89 525i code 1222 dmc1017 5-Series (E12,E28, E34, E39, E60) 1 04-27-2008 07:33 PM
Newbie Code 1222 90' E34 Duanevw 5-Series (E12,E28, E34, E39, E60) 2 03-31-2006 07:11 PM
1988 325 Head Problem starrider 3-Series (E21, E30) 4 12-02-2004 03:29 PM
Code for fried stereo in 1988 325? guy_incognito 3-Series (E21, E30) 4 10-20-2003 10:04 PM

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