Pulled codes need info
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From: Central PA
Pulled codes need info
Info: 94 F150 302 Maf (factory setup) e4od 4x4
The other day I thought I got a bad batch Gas. Pinging and the like .Add lucas additive. Helped. This truck is picky out gas any way. Or I get ping issues. Spent a weekend checking sensors while back .
Well I was washing truck and the exhaust is Black way to rich . Pull codes Got 1-2 (12) 1-2 (12) and 1-3 (13) 1-2 (12 ) .Right?? Used Fordfuelinjection.com To see if I did right
Did them 6 times same every time. So whats up ? I had a tester that would throw the code right at you but it died. So help
So I am going to replace plugs 20000 mile tune up anyway The ford racing wires MDS cap rotor and MSD Coil have 5000 miles on em. Clean throttle body up and reset timing.
What would cause the rich running ?
I say its the Fuel presure reg (did searches ) Sounds like it . But what about ping issue ??
Changing the timing up or down has no major effect. Its not bad just longhills with load on. So while I'm under hood I'll check any ideas . Thanks
The other day I thought I got a bad batch Gas. Pinging and the like .Add lucas additive. Helped. This truck is picky out gas any way. Or I get ping issues. Spent a weekend checking sensors while back .
Well I was washing truck and the exhaust is Black way to rich . Pull codes Got 1-2 (12) 1-2 (12) and 1-3 (13) 1-2 (12 ) .Right?? Used Fordfuelinjection.com To see if I did right
Did them 6 times same every time. So whats up ? I had a tester that would throw the code right at you but it died. So help
So I am going to replace plugs 20000 mile tune up anyway The ford racing wires MDS cap rotor and MSD Coil have 5000 miles on em. Clean throttle body up and reset timing.
What would cause the rich running ?
I say its the Fuel presure reg (did searches ) Sounds like it . But what about ping issue ??
Changing the timing up or down has no major effect. Its not bad just longhills with load on. So while I'm under hood I'll check any ideas . Thanks
Last edited by lostin90s; Aug 4, 2007 at 04:57 PM.
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From: Central PA
Originally Posted by bobcf
12= system cannot rais engine speed= check the IAC valve it may be stuck or sticking
13=idle Rpm out of specification=idle is too low or too high
13=idle Rpm out of specification=idle is too low or too high
As for the idle 13 well see what happens.
Thanks
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From: Central PA
Originally Posted by EPNCSU2006
I'd re-check those codes. I thought that Ford had switched over to 3 digit codes by 94.
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Joined: Nov 2002
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From: Concord, NC
Good to know. I wonder how Ford decided which trouble code set to use...
unless you got a 111 111 separator pulse then a 312. A 312 could mean that air is being pumped upstream of the O2 sensor, giving a false lean reading, causing the mixture to be richened, which would give the soot in the tailpipe.
Here is another "how to" if others are interested in something other than fordfuelinjection.com: http://www.thorssell.net/hbook/eectest.html
unless you got a 111 111 separator pulse then a 312. A 312 could mean that air is being pumped upstream of the O2 sensor, giving a false lean reading, causing the mixture to be richened, which would give the soot in the tailpipe.
Here is another "how to" if others are interested in something other than fordfuelinjection.com: http://www.thorssell.net/hbook/eectest.html
Last edited by EPNCSU2006; Aug 11, 2007 at 08:49 AM.
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From: Central PA
Originally Posted by EPNCSU2006
Good to know. I wonder how Ford decided which trouble code set to use...
unless you got a 111 111 separator pulse then a 312. A 312 could mean that air is being pumped upstream of the O2 sensor, giving a false lean reading, causing the mixture to be richened, which would give the soot in the tailpipe.
Here is another "how to" if others are interested in something other than fordfuelinjection.com: http://www.thorssell.net/hbook/eectest.html
unless you got a 111 111 separator pulse then a 312. A 312 could mean that air is being pumped upstream of the O2 sensor, giving a false lean reading, causing the mixture to be richened, which would give the soot in the tailpipe.
Here is another "how to" if others are interested in something other than fordfuelinjection.com: http://www.thorssell.net/hbook/eectest.html
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From: Central PA
Thanks buy the way . I have yet to take off egr etc and clean . But I'll see whats up the emmisions down tube (from the rear of heads to convertor is after the 02. Any ideas what might be up
Lead Driver
Joined: Nov 2002
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From: Concord, NC
I'm not saying I'm right, just something to think about. The 12 and 13 don't seem like they are related to the sooty tail pipe. I'm just speculating to make sure you aren't chasing something that isn't really wrong. I'm sure you have a good handle on how to get the codes.
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From: Central PA
No problem I asked question because I want to know. Since I ran 4 tanks trough it it seems to be ok . Just must have been really bad gas. Now the ping issue ,I'll recheck timing and plugs etc.