Loren

The diagnosis of "oxygen sensor aging" helps to identify oxygen sensors that exceed emission limits because of aging.

During the diagnosis of oxygen sensor aging, the DME control module monitors the period of the sensor signal.

With an old sensor, the duration of the period is too long, i.e. it is more difficult for the sensor to diffuse oxygen into the exhaust gas. Reasons for this could be frequent driving in the lower load range (city driving, short distances, etc.) or a contaminated sensor.

Diagnosis conditions

Manual transmission

Engine speed between 1400 rpm and 2600 rpm. Engine load between 0.7 ms and 1.5 ms.

Calculated catalytic converter temperature greater than 350°C.

Oxygen sensing system active.

No faults for misfire recognition, throttle valve, oxygen sensor heating, camshaft position sensor, fuel tank ventilation

system, EVAP canister purge valve output stage, voltage supply or mixture adaptation.

The OBD II service book says erase the code and if comes back replace the sensor.

I don't remember exactly. But the parts list says 12 total - or 6 per side - or 2 per cylinder.

I seem to remember the GT3 has 18 total - or 9 per side - or 3 per cylinder.

i'll be installing my new headers this weekend and am looking for some tips.

do i need anything special for bolt removal, liquid wrench, wd 40, elbow grease ;) ?

do i need anything special for install, anti seize for the bolts?

any special procedures?

If you want to be safe then replace the manifold bolts (900 378 131 00). I think they are about $1.29 each retail.

Torque setting are here.

Like this?

This is a protective coating put on the underside of the car by the factory. Doesn't hurt anything - you can take it all off (a lot of work) or leave it as is.

I can get an ohm tester but what exactly do I measure if all four cables are new. Or of what do I take the measurement form the sensor inside the pad or inside the plug area?I am not clear how to test resistance.

I was not able to download the link.  I will try to get the picture up, basically it is all of the front bolts that bolt in from underneath to the body.  Thanks.

PNA 488 521 05.  There were none in the US last time I checked, since they were given to the mechanics when they went to 987 school.

Update.  There were 130 of them in the US as of yesterday.  If you want one then order it now.

How much does the dealer sell these for? Anyone know? Jim

The 3rd brake light in the rear deck lid should work. If the spoiler light is always on then they did not install the new wiring harness for the aerokit. See the note here.

It's a pretty simple circuit. All the sensors are wired in series - which means any break in a wire will cause the light to go on. If you have an ohm meter you should be able to trace it back one wheel at a time until you find the high resistance.

From TSB 6/04 4440 Summer Tire and Wheel Summary (dated 8-10-04)...

If new tires are to be mounted or the tires of one axle are to be replaced, tires of the same make, the same type and with the same specification code must always be used on each of the two axles. If tires are replaced on one axle only, the different tread depth from that on the other axle can cause a noticeable change in the familiar handling. This is especially the case if new tires are mounted on the rear axle. This effect decreses with increasing tire mileage.

When replacing a tire on an axle, make sure that the tread depth of the new tire does not differ from that of the other tire by more than 30 %.

If a tire is damaged and it cannot be determined with absolute certainty that there is no ply damage - with all of its consequences - or if the tire was thermally or mechanically overloaded due to a loss of pressure or other prior damage, we recommend replacement of the tire in question for safety reasons.

Repairs on 'ZR" tires are not allowed, as is the use of inner tubes in tubeless tires.Tires age due to chemical and physical processes, which can impair their function. Tires that are stored unused for an extended period harden and become brittle faster than tires that are in continual use. Hairline aging cracks can occur on older tires. On tires in continual use, the kneading action activates the plasticizer in the rubber and thereby prevents hardening and cracking.

Therefore, attention should be paid not only to the tread depth but also to the age of the tire. Tires should not be older than 6 years. The age of the tire can be determined via the DOT code on the sidewall, which indicates the production date of the tire: e.g. DOT 2201= 22nd week of 2001.

Tires/complete wheels must be stored in a cool, dry and dark room with adequate ventilation. They must never come into contact with fuel, oil, grease or chemicals.

Yes, looks like a cam cover or Variocam solenoid leak.

I assume this will also work with the pre-02 996?  Have any pointers where this can be purchased?

http://www.beckerautosound.com/soundadviceonline.html

The end play (if not excessive) should not hurt anything. Some folks go back in and adjust the end after a couple of years after things are well worn in. If it doesn't bother you then I would leave it as is - but if you start missing shifts you might want to tighten it up a bit. When we install them at our "Work on cars days" we adjust them so that the shifter is just loose enough to return to center on it's when released.

Have a look here.

Thanks for the reply, do you have the part number for the retrofit kit.

Thanks

Todd

Thank you for suggestion.  I did find 2 tsb "2/00 2601" & "5/04 2601".  How do you view them?

Front speed sensor (item 3)

Rear speed sensor (item 5)

You will need to take ALL the hardware off the old one and mount it on the new one. That includes the little clips that hold the trim on the sides.

The ABS and PSM share the same speed sensors on each wheel. A PST2 would tell you which sensor is likely triggering the fault - but you might just check and or clean the electrical connection on each wheel sensor. Be sure and do any plugging and unplugging with the ignition off.

IMHO - if you are getting new rotors then change the pads. The problem is your old pads have worn to fit the old grooved rotors so they would not be making full contact on a new rotor - as least not until they had worn enough.

What is the tool, the part number and the cost?

100 Time Units is one hour. So 1 TU is 0.6 minutes, or 36 seconds.

You may need to remove the mufflers if you can't maneuver the headers out. The torque for the header nuts is 19 ft-lb for each of the six bolts (per side) and 22 ft-lb for the 3 on the cat side.

996 613 119 10 A05 Targa Shade Switch - Retail price $33.84

The brake pad sensors are just wires. When they wear through they break the circuit. Most folks just use a tie-wrap to keep them out of the way with racing pads.

HI Loren,

I have DRL and would prefer them off, is it as simple as pulling the relay and can you tell me which one?

Its a Canadian car.

Thanks.