Code P1670 - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 4 (permalink) Old 03-17-2007, 08:19 AM Thread Starter
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Code P1670

Had technican perform a complete scan on 1999 f-250 Thursday following, a glow plug and injector test @ the harness which I performed for what appeared to be be a hard start condition. Technican performed a KOEO and KOER test with the SNAP-ON MIDUS including a buzz test. Everything appeared within range except a code P1670 EF Curcuit Short. Techician suggested replacing the EBP sensor and tube. Could someone provide additional insight on this issue would be greatly appreciated.

Early 99 (5/98) F250 4x4 Superduty XLT superchip
98 Jeep Grand Cherokee Lerado
96 Jeep Cherokee/Country
2004 E320 Mercedes Benz
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post #2 of 4 (permalink) Old 03-17-2007, 02:57 PM
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Re: Code P1670

[ QUOTE ]
Had technican perform a complete scan on 1999 f-250 Thursday following, a glow plug and injector test @ the harness which I performed for what appeared to be be a hard start condition. Technican performed a KOEO and KOER test with the SNAP-ON MIDUS including a buzz test. Everything appeared within range except a code P1670 EF Curcuit Short. Techician suggested replacing the EBP sensor and tube. Could someone provide additional insight on this issue would be greatly appreciated.

[/ QUOTE ]

Read here...

DTC P1668 and P1670 indicates that a communication error has occurred between the PCM and the IDM.
Possible causes:
Open fuse
IDM relay
Open or shorted IDM enable circuit
Open/short in EF circuit
Open/short in FDCS circuit
IDM powering circuits
PCM
Check for other codes.
Key on, engine off.
Perform KOEO On-Demand Self Test and retrieve Continuous DTCs.


Hope it helps...

Rick.....
97 F 350 ...Lucky 13
"Most stuff's just stuck & needs hittin with a hammer .Supporter/End user of ShiftSolutions THE CURE E4/4R Trans Control. Helping Cancer patients and families
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post #3 of 4 (permalink) Old 03-17-2007, 05:51 PM
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Re: Code P1670

there are 2 differant concerns w/ these codes. 1 is a harness issue where the pcm & idm wires y off from one another. 2 is the idm could be defective.

certified ford dealer 7.3L,6.0L & 6.4L diesel tech & foreman
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post #4 of 4 (permalink) Old 03-17-2007, 09:24 PM Thread Starter
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Re: Code P1670

Dieseltech50's....

Thanks for the input. Actually, I got two codes, P1316 and 1670.I cleared these codes and they have yet to return. Do you have any idea of what steps I shpuld take next.

Early 99 (5/98) F250 4x4 Superduty XLT superchip
98 Jeep Grand Cherokee Lerado
96 Jeep Cherokee/Country
2004 E320 Mercedes Benz
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