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From WIS..
Posted by Seung Min Yu (Mel) [Email] (more from Seung Min Yu (Mel)) on Sun, 19 Sep 2004 13:17:11
In Reply to: Help.. CEL, Mark, Sun, 19 Sep 2004 11:07:25
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On-Board Diagnostics
P1312
Combustion Detection Cyl. 1+2. Open Circuit / Short to B+.
Fault symptoms
• CHECK ENGINE.
Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.
Enable criteria
- General condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7°C.
- Engine running. Main relay voltage exceeding 10V. Ignition synchronized.
Fault criteria
Diagnostic help
Checking the wiring
- Voltage exceeding 5V continuously during 200 combustions.
Dependents
- None
System reaction to a fault
- None
OK report
- Enable criteria fulfilled. Fault criteria for P1312 or P1334 not fulfilled within 300
combustions.
Fault handling: (For more information, see .)
- Type III.
Fault diagnosis concerns an electrical fault in the connecting leads.
• Combustion Detection Cyl 1+2 / Bank 1, unit %
Jiggle the wiring harness at several points and in different directions to detect intermittent
breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the
check.
Seems like you have some problem in cyl 1&2. possibly for spark plug worst, you need new block.. you'd better stop by at dealership.
posted by 24.247.168...
Posts in this Thread:
- Help.. CEL, Mark, Sun, 19 Sep 2004 11:07:25
- From WIS.., Seung Min Yu (Mel), Sun, 19 Sep 2004 13:17:11 <-- Viewing This Message
- Re: From WIS.., buck, Sun, 19 Sep 2004 13:58:37
- Re: Mark,, t_mokes, Mon, 20 Sep 2004 12:35:23
- Re: Mark,, Scanwest, Tue, 21 Sep 2004 11:11:27
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