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Old 06-04-2003, 03:56 PM
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Join Date: Jan 2002
Posts: 16
'85 190 E-16 euro fuel air mixture wire

Having trouble getting the answer to this: I have an '85 Euro 190E 16 valve. The fuel air mixture sensor wire (running below/near the front muffler) was severed at some point, probably by hitting a rock. It hasn't been hooked up in the one year I've owned the car. I've been told that the Euro 16V "brain" doesn't have the capability to utilize this sensor anyway - that in fact it was probably only hooked up to pass the visual smog test. I live mostly in Utah, where I don't have to pass an emissions test. The car runs fine, gets great mileage - so I don't want to "fix" it if in fact it's not broken. Is there a compelling reason to re-connect the severed wire?
Thanks a lot. Randy
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Old 06-04-2003, 04:21 PM
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Join Date: Nov 2002
Location: Scottsdale, Arizona
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Based on your description, probably not. Euro cars in the US pose interesting diagnosis problems, particularly if you don't know what was done to get the car registered in the US, ie. what part of the engine systems were changed. For instance, the Euro 16V had a different fuel pump relay that had a higher RPM cutoff than the US version.

If the O2 sensor was operational in your engine and was now disconnected, the fuel injection system would likely run extremely rich and you'd likely have some very wet plugs.
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