Fordmods Logo

missing sensor? 

 

Page 2 of 2 [ 24 posts ] Go to page Previous  1, 2

 
 Post subject: Re: missing sensor?
Posted: Tue Jun 05, 2012 7:53 pm 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

hello again i got around to running the engine running test and i got back 2 error codes

172 System always lean HO2S(1) The engine is always running lean (V8)

176 System always lean HO2S(2) The engine is always running lean (V8) Can be caused by a faulty sensor, cold sensor, or exhaust manifold leak

could this possibly be a bad maf sensor? im unsure of what to look at first things ive changed myself are the coil, cap/rotor, leads/plugs, o2 sensors with vdo ones. would my extractors be causing these codes? :/
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Tue Jun 05, 2012 8:27 pm 
EFI Guru
Offline

Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Could be caused by all of those things and more.
Try a known good MAF on there. Check your HEGO ground and also check your block ground to the battery negative. Could also be your fuel pump and/or filter.
For lean running your ACT or ECT would be reading hot.
Headers are unlikely to cause this problem except if they are leaky.
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Tue Jun 05, 2012 9:05 pm 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

ah right i have a set of pacemaker PH4000's tri-y headers i took the fuel filter out and it was pretty dirty so hopefully ive found the cause of the error codes and miss. will let you know how i go. thanks
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Thu Jun 07, 2012 4:45 am 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

hello i got around to putting in the new fuel filter. it doesnt seem to be missing now but i havent taken it for a decent drive. so i will post back if the missing comes back. thanks for your help guys
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Thu Jun 07, 2012 11:03 am 
EFI Guru
Offline

Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

No worries,
Disconnect your battery for awhile to clear KAM as well Damian.
Be surprised if it's just the fuel filter but hopefully it is.
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Tue Jun 12, 2012 5:45 am 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

hey just thought id let you know how the fuel filter went. the missfire isnt as bad as it was but its still there.
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Wed Jun 13, 2012 6:10 pm 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

hey guys i regapped my spark plugs from 1.4mm to 1.1mm and the missing has gone. im sure the msd coil would of coped with a 1.4mm gap as it is the standard gap for these engines. thanks for the help :D
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Sun Jun 17, 2012 5:15 am 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

hello again. it seems the miss has come back and i dont know what to look at next. any suggestions?
Top
 Profile  
 
 
 Post subject: Re: missing sensor?
Posted: Sat Oct 13, 2012 3:20 am 
Parts Gopher
Offline

Age: 26

Posts: 58

Joined: 14th Jul 2011

Ride: Ef fairmont 96

Location: mandurah
WA, Australia

found the missing turned out to be my new o2 sensors i installed were busted.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 2 of 2  [ 24 posts ]  Go to page Previous  1, 2

Who is online

Users browsing this forum: Alexa [Bot] and 14 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum
cron

 

 

It is currently Mon Dec 18, 2017 1:39 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names