P1275 - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 02-20-2009, 10:25 AM Thread Starter
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P1275

my truck was running rough i ran a koeo test got a
P1275 Cylinder #5 High to Low Side Open

what does this mean and how it it fixed

15 F350 RC 4x4
14 F550 CC 4x4
05 2500HD CCSB 4x4 Duramax
02 F250 CCSB 4x4 ZF6 Swap
- aFe Stage II, 4" TB Exhaust, P.I.S. 160cc/30%, GTP38R, T500, DP-Tuned
- ITP Overboost Annihilator, Regulated Return
02 F250 CCLB 4x4 (Parting Out)
02 F250 SCSB 4x4
- Ford AIS Intake, 4" TB Exhaust
- ITP Overboost Annihilator, DP-Tuned
01 F250 SCLB 4x4
- DIY Intake 4" TB Exhaust
99 F550 RC 2x4 ZF6
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post #2 of 5 Old 02-21-2009, 04:56 AM
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Check your UVC harness for bank 2, I believe left side, for a loose connection. Ford offers plastic wedges to help retain connector if that's your problem. Also find a good scantool and perform a buzz test and cylinder contribution test to confirm. Otherwise sounds like #5 injector needs to be replaced.

Russ
Late '99 F-350 7.3l 6sp 2wd aftermarket dually kit 255,000mi STOCK
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post #3 of 5 Old 02-21-2009, 04:24 PM Thread Starter
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i have an AE the only problem is as of now its intermitten so cylinder contribution and buzz tests are good.

today i had it start running rough again, light came on, scanned it and no more P1275 this time it was:
P1316 Injector Driver Module Codes Detected

15 F350 RC 4x4
14 F550 CC 4x4
05 2500HD CCSB 4x4 Duramax
02 F250 CCSB 4x4 ZF6 Swap
- aFe Stage II, 4" TB Exhaust, P.I.S. 160cc/30%, GTP38R, T500, DP-Tuned
- ITP Overboost Annihilator, Regulated Return
02 F250 CCLB 4x4 (Parting Out)
02 F250 SCSB 4x4
- Ford AIS Intake, 4" TB Exhaust
- ITP Overboost Annihilator, DP-Tuned
01 F250 SCLB 4x4
- DIY Intake 4" TB Exhaust
99 F550 RC 2x4 ZF6
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post #4 of 5 Old 04-29-2009, 08:18 PM
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Any resolve to this issue ???

Delmar Expedited Transport
Oil Field Freight & Hot Shot Services
DelmarExpTrans@gmail.com
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post #5 of 5 Old 05-03-2009, 09:15 PM Thread Starter
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yea the pass. side uvc harness connector was loose just pushed it back together and no problems since

15 F350 RC 4x4
14 F550 CC 4x4
05 2500HD CCSB 4x4 Duramax
02 F250 CCSB 4x4 ZF6 Swap
- aFe Stage II, 4" TB Exhaust, P.I.S. 160cc/30%, GTP38R, T500, DP-Tuned
- ITP Overboost Annihilator, Regulated Return
02 F250 CCLB 4x4 (Parting Out)
02 F250 SCSB 4x4
- Ford AIS Intake, 4" TB Exhaust
- ITP Overboost Annihilator, DP-Tuned
01 F250 SCLB 4x4
- DIY Intake 4" TB Exhaust
99 F550 RC 2x4 ZF6
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