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[ricardo1500]

Hi All
I have had three codes pop up this week all at once on my 2001 2.2.  No change to running or performance just had the light on the dash 3 times in a week.

P0130
P0170
P1555

I am checking for intake leaks and wiring on the sensors mentioned by the codes.....except i dont know where to find the Heated oxygen Sensor (HO2S) which is mentioned in both P0130 and P0170.  Any one know where i can find it or have any other suggestions about what I may check.

Many thanks
Rich

[swamp rat]

I had the 0170 and 1555 codes on my last 2.2 at one stage. Same as you with no performance loss or other symptoms. P1555 refers to throttle body position, so removed the throttle body and gave it and the breathers a good clean with carb cleaner. Never saw the eml again. Might be coincidental and/or irrelevant but who knows.

[Abiton]

Oxygen sensor is the one in the exhaust system, just upstream of the cat IIRC.  Also known as a lambda sensor.  Check the wiring connector near it, as well as the wires themselves.

[Welung666]

Ricardo, I'm only down the road in Dudley if you need a hand and the codes clearing/re-reading. I'd have my money on the MAF though, they tend to throw up P0170 and P1555 codes with regularity

[ricardo1500]

Thanks for the replies and the offer of help Welung, will check and clean all the connections and the throttle body as I havnt done that for a while........if there is no problems with the engine running is there any reason why I cant ignore it if I cant cure the appearance of the codes