HELP! What are these..........

Right, after replacing my air filter today I looked down to the exhaust and see these (2) 'plugs/sensors' but with the wires chopped off! What are they and why would they be chopped are these integral for the car? I have PSE if that makes a difference? Also I have this mysterious switch located to the left of your left leg in the drivers footwell! Any ideas? Iv switched it to '1' and nothting happens in or outside the car? Last thing, I have this strange box located in the front bumper passenger side with a loom coming of ity just flopping around, what the hell is it? Any help with the above would be greatly appreciated.

my guesses... 1st one, lambda or oxygen sensors for the Cats? :dont know: 2nd one, umm, cut off switch, try switching to '0' and starting the car, does it start? Failing that just pop off the side panel and have a look where it goes, the panel comes off easily... :dont know: 3rd, not a clue, the only sensor I know in that area is the outside temp sensor and it doesn't look anything like that? As a side note though you need to clean out those rads, looks pretty messy in there, get a hoover in there or better still take the bumper off :thumb:

1st, lambda or oxygen sensors (has the car got sport cats?) 2nd, an engine cut out, an amp turn on (the CD22 does not this facility, so a turn on switch would be needed) 3rd, no idea ? is there a part number on it ?? I am not too sure of any of them !!

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Part of the extra emission controls involved in new cars involves having o2/lambda sensors before and after the cats to allow for determining when they have failed / working correctly. I've read a couple of threads on the US sites about people removing either the pre or post for some reason I can't remember. I doubt it will affect fuel economy assuming you still have one per side. Most people don't realise they actually have a limited life and replacement at around 60,000kms will improve fuel economy due to a better functioning sensor.

2. & 3. i have a similar arrangement for my after market 'parking' sensor So i can discreetly switch it off should it interfere with any law enforcement tech

Cool !

The last picture, of the little black box is a laser jamming device. You should have one present on the other side. I do wonder if that switch on the centre console is possibly connected to the hardware for the device. I have two present in the plastic mesh grill at each side of the number plate. The hardware for in the cabin is missing sadly in mine. See foto's.

Yes very James bond when i hit the stock porsche blank switch next to the sunroof and you get the arming beeps I had mine stealthed to the blank console switch on the turbo and the H/wash to the RSR

Interesting, my friend has this on his car, but wondered how to check that it was functioning correctly. anyone know :?: And yes he does have the box in the car with the beeper, but it's never gone off apart from switch on Ray :bandit:

Yep, laser jammers on the front I assume your car is pre 2002? I would emagine it has had the cats replaced with 2002 onwards type catalysts which have OBD-II requirement (rear Lambda). Upto 2002 does not have rear Lamda's hence the chopped wires.

My car is a 98,it has had PSE fitted 3 years ago..... SO should they be cut of or connected?

98 car is OBD and only has 2 Lambda sensors. It looks to me like at some point the car has had replacement cats taken off a 2001 onwards car which would be OBD-II this means 4 Lambda sensors. The physical cats are similar, the only difference is the 2 extra Lambda sensors hence they have been left in place (otherwise you'd have threaded holes!) Answer to question: Yes they should be cut. In my opinion that looks ugly. I can get proper bungs, take out the Lambdas, fit in these bungs and it will look factory again. £10 inc. postage for the pair.

thanks lloyd, all questions answered now, end of thread 8)