4L Octane Adjust Shorting Bar
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Post Fiend
Joined: Apr 2005
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From: Washington state
4L Octane Adjust Shorting Bar
may get one home on a long trip with predetonation/pinging problem
from Ford Tech. Serv. Pub. CD PCED
Octane Adjust Shorting Bar 4L
The Octane Adjust (OCT ADJ) shorting bar (Figure 25) is used to retard spark timing. Removal of the shorting bar from the in-line connector will typically retard spark three degrees. The purpose of the OCT ADJ self-test is to check the state of the OCT ADJ shorting bar. A Diagnostic Trouble Code (DTC) will be present if the shorting bar is removed or if there is an open circuit. The OCT ADJ shorting bar is similar in shape to the SPOUT in-line connector. On some applications the PSP circuit will also have a similar shorting bar connector. DO NOT remove the shorting bar unless directed by a Technical Service Bulletin (TSB).
from Ford Tech. Serv. Pub. CD PCED
Octane Adjust Shorting Bar 4L
The Octane Adjust (OCT ADJ) shorting bar (Figure 25) is used to retard spark timing. Removal of the shorting bar from the in-line connector will typically retard spark three degrees. The purpose of the OCT ADJ self-test is to check the state of the OCT ADJ shorting bar. A Diagnostic Trouble Code (DTC) will be present if the shorting bar is removed or if there is an open circuit. The OCT ADJ shorting bar is similar in shape to the SPOUT in-line connector. On some applications the PSP circuit will also have a similar shorting bar connector. DO NOT remove the shorting bar unless directed by a Technical Service Bulletin (TSB).
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