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Author Topic: If I wanted to replace O2 sensors, what's the best way?  (Read 4018 times)

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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #30 on: 16 February 2013, 14:01:44 »
legend. Cheers Chris. Will do this all tomorrow really appreciative your help:)
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #31 on: 16 February 2013, 18:08:40 »
ok, developments....not good ones  :'(

all yesterdays convo was great, clear plan as to what i need to do... get a call from mum today.... ''something odd has happened''  ::) ::) ::) ::)

car was just above empty, she fills up to just over the quarter... then in 5 miles' time its just above the red  :-\ :-\ :-\

i was working on the wifes focus today so didnt have time to look in depth in to it but i looked all around the car quickly, checked the fuel filter, checked engine bay. no leaks. no smell of petrol.

WTF is going on?  :-\ do you reckon theres a sender unit problem?

cars doing my nut! lol

cheers folks  :y
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #32 on: 16 February 2013, 19:07:01 »
few google bits i read suggest sender. is there a guide as cant seem to find one  :-\
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Abiton

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #33 on: 16 February 2013, 19:15:24 »
If you find it to be an intermittent fault (i.e. the gauge sometimes 'recovers' and reads correctly) I'd say there may be an easy, free fix.

Search posts by me, using the three words: fuel gauge sender
You should get five results which might help you.  :y

Click the little magnifying glass icon to the left of the search box to get Advanced Search, where you can specify username as well as the search words.
« Last Edit: 16 February 2013, 19:19:40 by Abiton »
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #34 on: 16 February 2013, 19:20:02 »
Quote from: Abiton on 16 February 2013, 19:15:24
If you find it to be an intermittent fault (i.e. the gauge sometimes 'recovers' and reads correctly) I'd say there may be an easy, free fix.

Search posts by me, using the three words: fuel gauge sender
You should get five results which might help you.  :y

will do...cheers mate..... i suppose a way to test it would be to brim it and see how much it takes?!
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #35 on: 16 February 2013, 19:36:18 »
right mate, checked your posts... good work BTW  :y

i understand what you mean too with the ''resistance track'' as we've done them at school  :y

When you checked the sender due to it being bent slightly i presume you got no move in the resistance reading...until you bent it correctly and then resistance check worked correctly? :)
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feeutfo

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #36 on: 16 February 2013, 19:36:50 »
Do it the old fashioned way, set the trip when you fill up, then see how many miles you get per tank.  ...might be wise to keep a can with fuel in, in the boot. Just in case.
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #37 on: 16 February 2013, 19:46:21 »
Quote from: chrisgixer on 16 February 2013, 19:36:50
Do it the old fashioned way, set the trip when you fill up, then see how many miles you get per tank.  ...might be wise to keep a can with fuel in, in the boot. Just in case.

will do chris, cheers. but will this work to diagnose the new development re the gauge that i posted about today?
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Abiton

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #38 on: 16 February 2013, 19:55:50 »
Quote from: Webby the Bear on 16 February 2013, 19:36:18
right mate, checked your posts... good work BTW  :y

i understand what you mean too with the ''resistance track'' as we've done them at school  :y

When you checked the sender due to it being bent slightly i presume you got no move in the resistance reading...until you bent it correctly and then resistance check worked correctly? :)

Yep, You'll see if you get the sender out of the tank that if the 90-degree bend has opened up a bit, it takes very little effort to lift the 'wiper' off the track, which obviously breaks the circuit causing the gauge to drop out.

I'd monitor it for a while before diving in there though (keep a spare can or two of fuel in the boot). If it isn't intermittent, then it probably isn't the same problem I had.
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #39 on: 16 February 2013, 20:03:26 »
Quote from: Abiton on 16 February 2013, 19:55:50
Quote from: Webby the Bear on 16 February 2013, 19:36:18
right mate, checked your posts... good work BTW  :y

i understand what you mean too with the ''resistance track'' as we've done them at school  :y

When you checked the sender due to it being bent slightly i presume you got no move in the resistance reading...until you bent it correctly and then resistance check worked correctly? :)

Yep, You'll see if you get the sender out of the tank that if the 90-degree bend has opened up a bit, it takes very little effort to lift the 'wiper' off the track, which obviously breaks the circuit causing the gauge to drop out.

I'd monitor it for a while before diving in there though (keep a spare can or two of fuel in the boot). If it isn't intermittent, then it probably isn't the same problem I had.

nice one mate. i'm sure i fully understand  :y

basically the metal part arrowed is easily liftable breaking the circuit?

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Abiton

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #40 on: 16 February 2013, 20:10:46 »
Yep, and the 90-degree bend I'm on about is at the one at the top end (as oriented in your pic) of that metal rod, not the one halfway to the float (which isn't and shouldn't be 90). 
You have to unclip the metal bit out of the plastic bits to correct the bend.
« Last Edit: 16 February 2013, 20:15:30 by Abiton »
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #41 on: 16 February 2013, 20:14:52 »
Quote from: Abiton on 16 February 2013, 20:10:46
Yep, and the 90-degree bend I'm on about is at the one at the top end (as oriented in your pic) of that metal rod, not the one halfway to the float (which isn't and shouldn't be 90).   
You have to unclip the metal bit out of the plastic bits to correct the bend.

got ya mate ;) .....


one way to ''quickly'' check would be to fill up to the brim i'm thinking.....should it take 70 litres i know the fuel has gone somewhere but if it only took say 40 litres then that would confirm gauge and/or sender fubared, right? :)
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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #42 on: 16 February 2013, 20:15:18 »
ps mate thanks very much for the info... really appreciated  :y :y :y
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Abiton

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #43 on: 16 February 2013, 20:17:18 »
Quote from: Webby the Bear on 16 February 2013, 20:14:52
Quote from: Abiton on 16 February 2013, 20:10:46
Yep, and the 90-degree bend I'm on about is at the one at the top end (as oriented in your pic) of that metal rod, not the one halfway to the float (which isn't and shouldn't be 90).   
You have to unclip the metal bit out of the plastic bits to correct the bend.

got ya mate ;) .....


one way to ''quickly'' check would be to fill up to the brim i'm thinking.....should it take 70 litres i know the fuel has gone somewhere but if it only took say 40 litres then that would confirm gauge and/or sender fubared, right? :)

Sounds like a good plan.  :)
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Webby the Bear

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Re: If I wanted to replace O2 sensors, what's the best way?
« Reply #44 on: 16 February 2013, 20:19:15 »
Quote from: Abiton on 16 February 2013, 20:17:18
Quote from: Webby the Bear on 16 February 2013, 20:14:52
Quote from: Abiton on 16 February 2013, 20:10:46
Yep, and the 90-degree bend I'm on about is at the one at the top end (as oriented in your pic) of that metal rod, not the one halfway to the float (which isn't and shouldn't be 90).   
You have to unclip the metal bit out of the plastic bits to correct the bend.

got ya mate ;) .....


one way to ''quickly'' check would be to fill up to the brim i'm thinking.....should it take 70 litres i know the fuel has gone somewhere but if it only took say 40 litres then that would confirm gauge and/or sender fubared, right? :)

Sounds like a good plan.  :)

cheers matie  :y :y :y :y :y
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