Who Knows the Code? Do YOU Know the Code?
Thread Starter
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Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
Who Knows the Code? Do YOU Know the Code?
ok. so i got my 91 f250 to throw a check engine light at me again after being reset when i disconnected the battery. turns out it does this after idling around in low gears. pulled the codes, got 11, 11, 13, 14, 1. is that last one just letting me know that the check is complete? or is it supposed to be a 141? and what, for sure, are the 13 and 14? i looked em up, at my truck never did the thirteen, so i want some reassurance here. thanks!
Elder User
Joined: Feb 2007
Posts: 630
Likes: 1
I hate those blinking lights... I can never seem to read them right so I purchased me a OBD1 scanner. Makes life much easier. You can pic them up for 20-40 bucks on ebay every now and then.
http://cgi.ebay.com/ebaymotors/Digit...1%7C240%3A1318
http://cgi.ebay.com/ebaymotors/Digit...1%7C240%3A1318
Freshman User
Joined: Mar 2009
Posts: 46
Likes: 0
there is a OBD1 scanner available at amazon at the moment.
Amazon.com: Equus 3173 Import OBD1 Code Reader: Automotive
Amazon.com: Equus 3173 Import OBD1 Code Reader: Automotive
Tuned
Joined: Aug 2007
Posts: 287
Likes: 1
On my 1988 F250 I usually see two 11's followed by a long(er) pause then 1 blink, (the separator) another longer pause then the stored codes. Just like the two 11's before the separator, the stored codes repeat twice.
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Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
I agree with the single seperator blink, the KOEO codes start with a single blink then the code(s) then the code(s) repeated, single blink, then the CM code(s) and then the Code(s) repeated. So you should get four sets of codes with half being repeats of the stored codes.
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Posting Guru
Joined: Jun 2007
Posts: 1,394
Likes: 0
From: Des Plaines, Illinois
It can't be 141, as you'll only have 2 digit codes. 3 digit codes started in 93 (and some late 92s).
You can use a sweep multimeter to count codes as well, it might be a bit easier to interpret...I hate counting the lights too.
You can use a sweep multimeter to count codes as well, it might be a bit easier to interpret...I hate counting the lights too.
Posting Guru
Joined: Jan 2002
Posts: 1,346
Likes: 8
From: Baltimore
11 is not an error. Indicates a pass.
13 RPM out of range.
Check curb idle.
Check engine vacuum hoses.
Check that throttle plates can fully close.
Check throttle linkage and or speed control linkage for binding.
Clean IAC passages/clean throttle body.
If OK replace IAC (Idle speed control). Mounted on throttle body.
14 PIP Ignition profile pickup failure
Code 14 indicates two successive erratic profile ignition pickup pulses occurred resulting in a possible engine miss or stall. The PIP sensor is located inside the distributor. Looks like this. To replace it requires the distributor shaft be pressed off.
13 RPM out of range.
Check curb idle.
Check engine vacuum hoses.
Check that throttle plates can fully close.
Check throttle linkage and or speed control linkage for binding.
Clean IAC passages/clean throttle body.
If OK replace IAC (Idle speed control). Mounted on throttle body.
14 PIP Ignition profile pickup failure
Code 14 indicates two successive erratic profile ignition pickup pulses occurred resulting in a possible engine miss or stall. The PIP sensor is located inside the distributor. Looks like this. To replace it requires the distributor shaft be pressed off.
Elder User
Joined: Feb 2007
Posts: 630
Likes: 1
Tell me about it! My truck and 2 and 3 digit codes. I had two codes for TPS while back ago and i got all sort of codes even after doing it 4 times. It seems the more i read it the more codes i got... so i said screw this hopped in my little import and went across town and bummed a friends garage scanner which i later purchased.
Thread Starter
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Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
11 is not an error. Indicates a pass.
13 RPM out of range.
Check curb idle.
Check engine vacuum hoses.
Check that throttle plates can fully close.
Check throttle linkage and or speed control linkage for binding.
Clean IAC passages/clean throttle body.
If OK replace IAC (Idle speed control). Mounted on throttle body.
14 PIP Ignition profile pickup failure
Code 14 indicates two successive erratic profile ignition pickup pulses occurred resulting in a possible engine miss or stall. The PIP sensor is located inside the distributor. Looks like this. To replace it requires the distributor shaft be pressed off.
13 RPM out of range.
Check curb idle.
Check engine vacuum hoses.
Check that throttle plates can fully close.
Check throttle linkage and or speed control linkage for binding.
Clean IAC passages/clean throttle body.
If OK replace IAC (Idle speed control). Mounted on throttle body.
14 PIP Ignition profile pickup failure
Code 14 indicates two successive erratic profile ignition pickup pulses occurred resulting in a possible engine miss or stall. The PIP sensor is located inside the distributor. Looks like this. To replace it requires the distributor shaft be pressed off.
Lead Driver
Joined: Nov 2002
Posts: 9,555
Likes: 40
From: Concord, NC
I think it may be 11, 31, 41, which would be an all clear, EGR related code, and an O2 sensor switching not detected code, respectively.
Here is another website that may help to separate the blinks: EEC IV Self Test hookup
To each his own, but counting has never been much of a problem for me and I can put the $30 on something other than a code reader.
Here is another website that may help to separate the blinks: EEC IV Self Test hookup
To each his own, but counting has never been much of a problem for me and I can put the $30 on something other than a code reader.
Senior User
Joined: Mar 2009
Posts: 294
Likes: 0
From: metro detroit area...
when checking the egr check the vac resevior too... looks like a tomato juice can with two vac lines connected to it. I just did this the other day and when I took it off the whole bottom was rusted out. Looked ok from the top though. I've read that alot of the egr codes can be caused by this or by a vac line and not necessarily the egr valve itself. good luck with all that though