New answers tagged o2-sensor
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It's the pre-cat sensors that are used to determine the mixture departing the engine, the post-cat ones are there to monitor cat function. Since the fuel trims adapt to maintain the value at the pre-cat sensor, it'll look good, if it's producing a fairly rational but off-calibrated to the lean side signal, even though the real mix is too rich, per the plug ...
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Sorry for the late update, and thanks for all the help. We finally got the issue fixed: injectors. The old ones had basically no flow at all, except for one, which had way too much flow. I think this weird combination was what contributed to it being so hard to diagnose from the logs. In hindsight the massive boost to fuel was a big sign, but I only ...
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Incidentally, are you sure of those gear ratios, especially of it revving out in 4th?
150k at 4500rpm is 33.3km/h per 1000rpm, a bit short for the power but not uncommon for sportier models. If it revs out at 6400, it'd be doing 213km/h; 200k would be bang on 6000rpm, which I expect is probably the stated max power. The 186k that others mention is more like ...
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If we go just by the speedometer rather than GPS or laser timing rigs, I've had decidedly north of 200km/h from a 106 BHP car (a Megane Sport, which is maybe more aerodynamic than a Corsa but has a larger frontal area/body skin area and more weight) which what sound like similar gear ratios. I think officially it was rated for somewhere in the low 190s, but ...
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It probably wouldn't be too harmful, if it's just a bit of soot suspended in there, and diluting the dirty stuff would at least help reduce any ill effects. Even so, the carbon particles most likely still act as some kind of minor abrasive, and unless you're extremely cash-strapped, the difference between a partial top-up and a full drain and replace (which, ...
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