Engine check light on. Ran OBD2 scanner.

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04-26-2013, 05:20 PM

XJTAO

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Year: 1996

Model: Cherokee

Engine: 4.0L

Engine check light on. Ran OBD2 scanner.

Help.. the check light on. I ran OBD II scanner. It said oxygen sensor circurit fuse. I looked for emission maintenance timer under dash. There are nothing I can find with gears or black box. I checked fuses . All are good. Also both Oxygen sensor plugs and catback are new. It run ok but transmission shifting strange. And Battery Amp increased. Any advice where I should check? Thanks..

1996 XJ sport 4.0L with cruise control.

Last edited by XJTAO; 04-26-2013 at 05:23 PM.

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04-26-2013, 05:56 PM

BEETROOT

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Model: Cherokee

o2 sensor fuse is under the hood.

It's the one the pen is pointing to.

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04-26-2013, 06:12 PM

XJTAO

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Year: 1996

Model: Cherokee

Engine: 4.0L

Yes its 15 amp and its good. It run poor and.shaky on uphill. Ita o2 sensor.problem defentily.

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04-26-2013, 06:55 PM

tjwalker

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Year: 1999

Model: Cherokee

Engine: 4.0

Post the EXACT code number here, not a description. With codes, the devil is in the details.

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05-07-2013, 08:13 PM

XJTAO

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Year: 1996

Model: Cherokee

Engine: 4.0L

Quote:

Originally Posted by tjwalker

Post the EXACT code number here, not a description. With codes, the devil is in the details.

Here it is..
PO 0141 MOD $D1

Oxygen Sensor
Heater Circuit Bank
1 Sensor 2

It is exact what scanner said..

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05-08-2013, 12:14 AM

Metmknice

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Year: 1989

Model: Cherokee

Engine: 4.0L I6

New O2's can be bad also, get it replaced tell them its faulty. IF the code comes back, then something in the circuit is screwy.

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05-08-2013, 12:26 AM

Radi

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Model: Cherokee

Quote:

Originally Posted by XJTAO

I looked for emission maintenance timer under dash. There are nothing I can find with gears or black box.

That was long gone by '96, replaced by the OBD systems.
What do you mean by "Battery amp increased"?

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05-08-2013, 04:48 AM

tjwalker

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Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by XJTAO

Also both Oxygen sensor plugs and catback are new.

What do you mean by plug? Do you mean that you replaced the connector to the sensors or the sensors themselves?

If you haven't replaced the sensor, it is the primary suspect.

http://www.obd-codes.com/p0141

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