Re: vauxhall corsa C 2001 1.2 Z12XE P0170 Archived Message
Posted by Alan Kane on September 28, 2007, 3:26 pm, in reply to "vauxhall corsa C 2001 1.2 Z12XE P0170"
Hi Alan, Does it go lean at high idle in the workshop as well as under load? If it does it in the workshop it will be easier to work on. With the O2 sensor sticking low you should have a lot of O2 in the exhaust. What gas readings have you got? Have you confirmed the O2 sensor is working correctly. A faulty injector spray pattern or an ignition misfire will give excess O2. Are there any other codes? Cam timing will cause it too. What is the engine vac like? Could you have a cracked manifold? Tight tappets or wrong oil maybe. Sorry to be a bit vague with my suggestions but I don’t know this engine particularly well. Alan
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