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Unread 05-28-2010, 10:02 AM   #1
oren77
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which engine code is this?



1998 TJ 4.0, engine code PO138, O2 sensor circuit high volts (bank 1 sensor 2). any pics of which sensor it is? is there a part number for the sensor?

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Unread 05-28-2010, 10:12 AM   #2
TheBoogieman
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You should replace both of them at the same time if they haven't been replaced before.
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Unread 05-28-2010, 10:14 AM   #3
Wheelin98TJ
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That is the downstream 02 sensor which is located right in the cat converter.

The part # for a dealer replacement is 56041213AB and it lists for $95.30. If you can get a discount, price will be around $63.44.

Have you tried clearing the code and see if it comes back?
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Unread 05-28-2010, 10:17 AM   #4
oren77
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Quote:
Originally Posted by Wheelin98TJ View Post
That is the downstream 02 sensor which is located right in the cat converter.

The part # for a dealer replacement is 56041213AB and it lists for $95.30. If you can get a discount, price will be around $63.44.

Have you tried clearing the code and see if it comes back?

Tried clearing the code and keeps coming back. Seems a bit pricey, is it suggested I replace both of them? Is there a place online that has them for less than the dealer?
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Unread 05-28-2010, 10:20 AM   #5
biffgnar
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Quote:
Originally Posted by oren77 View Post
Tried clearing the code and keeps coming back. Seems a bit pricey, is it suggested I replace both of them? Is there a place online that has them for less than the dealer?
Best place I have found for OEM sensors is Mopar Parts for Dodge, Chrysler and Jeep: MoparPartsAmerica
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Unread 05-28-2010, 10:25 AM   #6
Wheelin98TJ
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Quote:
Originally Posted by oren77 View Post
Tried clearing the code and keeps coming back. Seems a bit pricey, is it suggested I replace both of them? Is there a place online that has them for less than the dealer?
$63 is a decent deal, but yea, $90+ is getting a little expensive.

An 02 sensor from Autozone is $75 and it will be a piece of junk Bosch sensor.

I would look it up at Mopar Parts America (the link provided above by biffgnar) , print the page, and take it to your local dealer. Tell them you want an 02 sensor for $63 or you are ordering it online.
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Unread 05-28-2010, 10:26 AM   #7
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Car Part Wholesale - Auto Parts and Accessories Catalog - Oxygen Sensor For 1998 Jeep Wrangler Sport 6 Cyl 4.0L
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Unread 05-28-2010, 10:35 AM   #8
Wheelin98TJ
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I'm not sure if that one will work.

The stock downstream sensor is a heated sensor, so it uses a 4 wire connection.
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Unread 05-28-2010, 10:41 AM   #9
oren77
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so if I were to replace both of them, is it the same part number, 56041213AB?
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Unread 05-28-2010, 10:41 AM   #10
oren77
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looking at the oem one
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Unread 05-28-2010, 10:50 AM   #11
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I agree the Bosch are junk, NAPA carries the TGK sensors which work well (and they may be the ones to make the oem)
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Unread 05-28-2010, 10:52 AM   #12
oren77
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Quote:
Originally Posted by Wheelin98TJ View Post
That is the downstream 02 sensor which is located right in the cat converter.

The part # for a dealer replacement is 56041213AB and it lists for $95.30. If you can get a discount, price will be around $63.44.

Have you tried clearing the code and see if it comes back?
is it the same part number to replace both of them?
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Unread 05-28-2010, 10:53 AM   #13
Wheelin98TJ
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They have different part numbers, but coincidentally the same price.

Upstream 02 sensor
56041212
List price $95.30


Downstream 02 sensor
56041213AB
List price $95.30
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Unread 05-28-2010, 12:45 PM   #14
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try RockAuto Auto Parts
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Unread 07-02-2010, 10:55 AM   #15
oren77
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Just purchased both sensors from the dealer, took them a printout from moparpartsamerica and they gave me a discount. Just went under the jeep to locate both sensors, and i only see one it is located just after the exhaust manifold. Where is the other sensor?
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02 sensor , oxygen sensor , p0138

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