Share
Ask OBDII Question

19,432 questions

9,949 answers

626 comments

5,912 users

Top Users

Reynaldo (3681 Points)
G37driver (2744 Points)
OBDIITech (2389 Points)
milonajo1 (737 Points)
OBDtech2 (165 Points)
corvette-78 (127 Points)
knowledge 1488 (124 Points)
Samat Bekov (117 Points)
ptl (113 Points)
sabtele (112 Points)

P1670 FORD -

my truck f350 7.3 turns over but will not start? i am getting the code 1670 & 1280
asked Aug 3, 2011 by anonymous

1 Answer

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

P1280 indicates injector control signal circuit out of range low.

Possible causes:
-- biased ICP sensor/PCM
-- open ICP sensor circuit
-- short to SIG RTN or PWR GND on ICP sensor circuit
-- open in VREF circuit
 

answered Aug 5, 2011 by anonymous

Related questions

0 answers
18 views asked 2 days ago by shaun taitt
0 answers
17 views asked Aug 25 by roxann
...