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92 Mazda Protege stalling, help reading codes


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wcollins73
Novice

Jan 6, 2011, 8:57 AM

Post #1 of 5 (6153 views)
92 Mazda Protege stalling, help reading codes Sign In

1992 Mazda Protege SOHC, 1.8, AT, 140k

Need help diagnosing; not sure if I'm reading codes correct.
I get: 2 short, pause, 6 short, pause, 1 long, pause, 7 short.
I assume this is 26 (purge solenoid) and 17 (feedback system)???

Symptoms:
During acceleration or coasting, car will randomly stall or almost stall. Example: I'm going about 35mph, tach reads about 2k rpm, suddenly and briefly the rpms will drop to 0 and I will lose power, then it will bounce back to normal. It will repeat this several times in as many seconds. Accelerating, coasting, switching to neutral or lower gear all seem to make no difference. Half the time, the car will completely stall. I'll shift to neutral and restart (it always restarts, but not always on the first try). Sometimes the process repeats after restart and other times it goes away.

Any help appreciated.

Wes

UPDATE:
Turned out to be oil in the distributor. Replaced distributor with one from a junk yard. Running fine for several months now.


(This post was edited by wcollins73 on Sep 29, 2011, 2:09 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 6, 2011, 1:46 PM

Post #2 of 5 (6139 views)
Re: 92 Mazda Protege stalling, help reading codes Sign In

  
The purge solenoid is just emission control so that isn't causing any driveabilty issues.

Here is the flow chart for 17










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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Jan 6, 2011, 1:51 PM)


wcollins73
Novice

Jan 14, 2011, 1:16 PM

Post #3 of 5 (6105 views)
Re: 92 Mazda Protege stalling, help reading codes Sign In

Thanks for the help. Replace O2 sensor; code 17 hasn't come back in 3 days, but car is still acting the same (stalling). Code 26 hasn't returned either.

Exhaust smells like car is running rich. Some gray smoke.

Replace recently: fuel pump, distributor, cap, plugs, wires, IAC, air filter.

Today it stalled and wouldn't start. I was checking vacuum lines and accidentally broke a vacuum line nipple running from the the Pressure regulator solenoid to the Pressure regulator. I just let the line dangle there, but the care started despite. I drove the mile back to my office without problems, but when I went to leave 30 minutes later the car wouldn't start.

Thanks for any suggestions.


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Jan 19, 2011, 6:35 PM

Post #4 of 5 (6085 views)
Re: 92 Mazda Protege stalling, help reading codes Sign In

wc; The pressure regulator must have full manifold vacuum to it, or the computer will see a loss of vacuum (thinking you are under heavy demand) and go full rich.
Of course, this will cause an O2 trouble code.
Loren
SW Washington


Timthecarguy719
User

Apr 1, 2011, 9:24 PM

Post #5 of 5 (6007 views)
Re: 92 Mazda Protege stalling, help reading codes Sign In

Where did you get this information?
I never could find wave patterns.






 
 
 






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