Anybody know where you can find the O2 sensors needed for a 1995 xj6. I’ve posted abt the engine codes coming up and I need to replace all the sensors but can’t find any for sale online.

 

This has come up a couple times in the last year or so. It appears to be a North American thing. I dunno what the snag is.

I did some looking around 2-3 months ago and there are some UK vendors with verified stock on hand.

Cheers
DD

 

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# 14 / 10 amp right engine bay fuse box

is the 1 fuse for all 4 to heat before they will read properly

The aft 2 sensors are for engine regulation and the fwd 2 are for efficiency comparison code P0430 and P0420

So you have a swapping option

Do not twist the wires on removal as they are brittle galvanized coated , mine had broken wires sticking out of the insulation

 

im only replacing the 2 upstream ones because that’s what my engine codes said the issues were. Are you saying that I have to replace the fuse when I replace the 2 O2 Sensors ?

 

Check the fuse

What was your codes and symptoms again ?

Codes are a paper thing subject to.................................wallet

 

No symptoms only check engine light
P0101
P0132
P1187

 

Codes are for MAF sensor and O2 sensor upstream only bank 1

Wallet

A common denominator ( on paper ) between code P0101 and P1187 is the MAF sensor

Vee had the suggestion to slightly twist the blades / pins of the MAF sensor connector to make better contact

To know if the MAF is alive but not calibrated it will read 1.2 volts DC on the middle wire of the MAF connector still connected at the proper idle speed

With a ELM - 327 device it should be a little over 4 grams / second flowrate although some devices have a software error where you have to multiply by a factor of 10 or 100 to see your 4

There is a splice and relay that power the MAF sensor

To clean up the O2 sensor signals clean the O2 sensor connector if green corrosion , the 2 small ground post on the rear engine fire wall below the larger B + post above with the battery cables , the dedicated external ground strap on the ECU case , and the large ground strap on the starter to car frame ground

There are the Papa Indy 1 and 61 connectors subject to a TSB on corrosion but lately haven't heard of anyone having that

Effects heaters so the sensors will read correctly . Papa Indy 61 position 12 White / Greem color wire , P1187 is all sensors heaters

Although the O2 sensor's are age limited and don't last forever

But you still have a swapping option to tell you something if the codes follow to the new bank 2

There is a O2 connector hook up map as the connections get swapped and cause problems










pics coming

 

Alright sounds good I’ll do some research and look into it tomorrow morning I appreciate the help

 

I edited some on the above post and target is the MAF sensor ( 2 codes ) and O2 sensors heaters ( last code )

Free check

 

If you swap the sensors it may take some time for the ECU to learn the differences and learn the new sensors " suppleness " so this would effect your codes showing immediately

No two O2 sensors are exactly alike / respond the same

 

I would recommend:

1. Checking the oxygen sensor heater circuit fuse(s).
2. Clean MAF sensor.
3. Replacing the oxygen sensors. The upstream ones are simply there to check the downstream sensors. (Personally, I would swap all four, if the upstream one has failed, then it would make sense that the other ones will soon be there as well.)
4. Replace MAF sensor.

In that order.

p0132 is telling you that Bank 1, Sensor 1 is failing. So that needs to be replaced.
P0101 is telling you something is wrong with the MAF.... I'm not sure that the oxygen sensor issue isn't creating this issue maybe?
p1187 could really be caused by a poor MAF or failing oxygen sensors....

 

p0132 is telling you there’s a lack of switching action and it’s pegged rich. an inoperative heater does not help

you need to do some datalogging

 

I'm just repeating what the Jaguar DTC Summary Chart says.

Please head over to JagRepair.com - Jaguar Repair Information Resource and check the codes yourself?

 

Some good old MAF cleaner on the inside MAF sensor tube ?

It has to be labeled as MAF cleaner

It is a flammable spray so down the intake not advisable

Bosch O2 sensor # 13789 is connector ready so is an exact fit , all 4 sensors are exactly alike

 

Question on the O2 sensor switching , is that done with the ECU ?

The California ECU's are special for emissions so there is a separate ECU #

Genuine Electronic Control Module-4.0 Litre (4.0 Litre,4.0 Litre (california)) For Jaguar Xj 1995 - 1997 (from 720125 To 812255) (x300) Classic | Jaguar Land Rover Classic Parts

 

yes I used maf cleaner actually last week on friday and I tried to buy the Bosch o2 sensor but couldn’t find one for sell for the life of me so I settled with buying the Walker Products O2 sensor

 

What was your Walker # for reference ?

I got a couple of spare O2 sensors and a MAF sensor from a X300 at a salvage yard

They have a tendency to cut the O2 sensors out and sell them to a precious metal ( platinum ) melter without knowing how special they are

They sell for 5 dollars US but they cut them out as soon as the donor car arrives at the salvage yard so you have to call

There is a way to test the salvaged O2 sensor off car including the suspect one you have

 

Walker Products 350-34561 Oxygen Sensor For 95-97 Jaguar Vanden Plas XJ6 XJR XJS

I got only 2 for the 2 upstream sensors.

 

I think I would seriously consider using the new ones for the downstream, and moving the existing old downstream ones to the upstream...