Octane Adjust Shorting Bar.... C110
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From: FLA
Octane Adjust Shorting Bar.... C110
Does anyone knows were this connects to? I was reading the Elec/Vaccum Service Manual becuase I found this connector loose in my engine bay, the manual makes reference as the Octane Adjust Shorting Bar, but don't know were to plug it.
Post Fiend
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From: Connecticut
It doesn't connect to anything. It is an in-line connector. If you pull out the little bar located at the end of it, this will "short" the connection, sending a signal to the PCM which will in turn retard your engine timing 3 degrees.
You might find more information about the Octane Adjust bar in the Powertrain Control/Emissions Diagnosis (PCED) part of your Service Manual.
You might find more information about the Octane Adjust bar in the Powertrain Control/Emissions Diagnosis (PCED) part of your Service Manual.
Post Fiend
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From: Connecticut
Originally posted by Ranger95
Pardon my ignorance, but how the heck you use that connector?
Right know is just a loose connector with two wires and wide open, no jumpers between the connectors or anything. I read that this is used by the PCM to retard the timing 3 degrees, but does it works by putting a jumper across the pins or removing the jumper? Please help!!!!. I really want to learn about this just to test a possible pinging problem. If anyone have a pitucre or a diagram that shows this it will be greatly appreciated. BTW this is for a '95 Ranger V6 3.0.
Pardon my ignorance, but how the heck you use that connector?
Right know is just a loose connector with two wires and wide open, no jumpers between the connectors or anything. I read that this is used by the PCM to retard the timing 3 degrees, but does it works by putting a jumper across the pins or removing the jumper? Please help!!!!. I really want to learn about this just to test a possible pinging problem. If anyone have a pitucre or a diagram that shows this it will be greatly appreciated. BTW this is for a '95 Ranger V6 3.0.
The Octane Adjust (OCT ADJ) shorting bar 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 Power Steering Pressure (PSP) circuit will also have a similar shorting bar connector. DO NOT remove the shorting bar unless directed by a Technical Service Bulletin (TSB).
If you don't have the bar, your timing has been retarded.
Post Fiend
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From: Connecticut
Ranger95,
Let us know what happens when you jumper it ...if you notice a difference in performance, etc.
It's interesting that it was shorted already...maybe the motor had a previous pinging problem?
And I wonder if the TSB referenced in the service manual was performed on your motor, since I presume you had no CEL?
Let us know what happens when you jumper it ...if you notice a difference in performance, etc.
It's interesting that it was shorted already...maybe the motor had a previous pinging problem?
And I wonder if the TSB referenced in the service manual was performed on your motor, since I presume you had no CEL?
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From: FLA
One thing I noticed is that the idle is smoother, I didn't had any CEL before I found the connector nor right know after I jumpered it. No ping or anything, plus I'm using 93 Octane and Super 104. Also I noticed a better fuel management (more MPG) than before. Power wise, I haven't seen much difference, but I did a mistake and forgot to shifht back to 1st and started driving using 3rd and the truck only pinged slightly (of course) and it took off nicely, when before it would not even do it while on second gear. Don't know maybe a fluke. I'll keep you guys posted if any more changes.
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Post Fiend
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From: Connecticut
Originally posted by fordman1994
Thanks for the welcome
Where can i find the octane bar at on my 99 Ranger?
Thanks
Thanks for the welcome
Where can i find the octane bar at on my 99 Ranger?
Thanks
Just wondering, are you planning on pulling the bar and retarding the timing on your engine? Or are you thinking that maybe it's been retarded already, and you want to put it back to factory set?
Senior User
Joined: May 2003
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From: Baton Rouge, LA
Hey Rock,
I am thinking of trying the shorting bar on my '00 3.0. Just wondering if this is reversable in case i doesnt change my pinging? Also, how do i remove the shorting bar...do i just pull it out or pry it out with a screwdriver? Also, how can i be sure that its the shorting bar wire and not the power steering shorting bar? thanks
I am thinking of trying the shorting bar on my '00 3.0. Just wondering if this is reversable in case i doesnt change my pinging? Also, how do i remove the shorting bar...do i just pull it out or pry it out with a screwdriver? Also, how can i be sure that its the shorting bar wire and not the power steering shorting bar? thanks
Last edited by bassaway; Nov 6, 2003 at 09:40 PM.
Post Fiend
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From: Connecticut
Originally posted by bassaway
Hey Rock,
I am thinking of trying the shorting bar on my '00 3.0. Just wondering if this is reversable in case i doesnt change my pinging? Also, how do i remove the shorting bar...do i just pull it out or pry it out with a screwdriver? Also, how can i be sure that its the shorting bar wire and not the power steering shorting bar? thanks
Hey Rock,
I am thinking of trying the shorting bar on my '00 3.0. Just wondering if this is reversable in case i doesnt change my pinging? Also, how do i remove the shorting bar...do i just pull it out or pry it out with a screwdriver? Also, how can i be sure that its the shorting bar wire and not the power steering shorting bar? thanks
AFAIK, the plug is simply pulled out...