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post #1 of 8 (permalink) Old 10-21-02, 11:17 PM Thread Starter
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Question Sensors...

Hey guys,

Just wondering how much would it cost me to change the sensors in my CFI 3.9? (including thermostat)

Could someone give me a list of how much each sensor costs?

If you can that would be great..

BTW, is it hard to swap over most of the sensors? Where are the sensors in the engine bay, and how do you replace them?

I want to change all my sensors just for piece of mind, also I think my Engine Temp gauge doesn't work properly as it never goes above the O in NORMAL, even when it's 30+ degrees outside..


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post #2 of 8 (permalink) Old 10-22-02, 12:31 AM
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my EF gauge never gos above M amd usually never above A.the sensors can cost a bit.I know the oxygen sensor for my EF is approx $130.most of them seem pretty sturdy to me and are reasonably easy to remove the hard bit is getting to them in the first place.I have heard that the oxygen sensor and the coolant temp sensor are 2 of the most crucial ones .
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post #3 of 8 (permalink) Old 10-23-02, 05:28 AM
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i reckon you would be wasting time and money swapping them.

usually if a sensor goes it goes in one hit and the car runs like crap, they dont kinga degenerate slowly.

you would be up for maybe $300 at a guess at least to replace all sensors, (coolant tempX2, O2 sensor, etc) plus the time it takes to swap them, and if you break one putting it cost/benifit and i really dont think its worth it.

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post #4 of 8 (permalink) Old 10-23-02, 06:41 AM Thread Starter
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Oh ok, so how can I tell if one is broken? Can you look at it physically, and if so, where are they in the engine bay so I can have a look at them.

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post #5 of 8 (permalink) Old 10-23-02, 07:20 AM
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The only one you can look at is the air temp, on top of cfi at the back, easy to spot. Not that it'll do you much good.
Coolent temp is on themostat housing and the oxy sensor is on the back of the exhaust up against the fire wall.
The only way to test is with a multimeter.
Have fun.
post #6 of 8 (permalink) Old 10-23-02, 08:19 AM
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What sensors ya need? I've mail them all to you for like $20 + Postage.

Have a whole CFI motor in the mates garage taking up space, it needs to go...
post #7 of 8 (permalink) Old 10-23-02, 06:12 PM Thread Starter
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Oh sorry, can't buy them off you know, got my rego due early november, and i'm on a tight budget. I know it's only twenty bucks, but I'm counting all the coins i've got so I can pay the damn thing. Thanks for the offer anyway donuts. If you've still got them in a month or so, i'd be glad to buy them off you.

Air Temp.. isn't that on the left had side of the block (when looking into engine bay from front of car). It's like a plug??

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post #8 of 8 (permalink) Old 10-23-02, 06:28 PM
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On the intake manifold, at the back on no. 6.
MPFI is buried under everything next to the map sensor pickup
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