how likely is damage, and of what kind, from driving, especially tracking, a naturally aspirated car with the condition indicated by the lean code?
Get it fixed?how likely is damage, and of what kind, from driving, especially tracking, a naturally aspirated car with the condition indicated by the lean code?
its saying it can't maintain the air fuel ratio it wants in closed loop, without adding lots of corrections to the base settings.
so its over 17% correction, because of a leak or fuel pressure issue.
how much damage it might cause will depend on how lean its getting on load and if whatevers causing it to overcorrect is big enough for it to lean out enough on load as well.
a small leak off load can make it throw the code, but it might not be big enough to upset it on load.
otherwise their is no way to know the damage potential since you don't know how much of a problem there is, but running much too lean can cause damage, especially in high load, high temp scenarios.
best to have it checked.
i had been trying to get it fixed by myself but was not successful:Get it fixed?
Anyway, if it's an actual problem, it can heat your engine up and cause some damage, if it's severe enough.
yeah if the 02 is damaged, more than likely you'd see a no activity first. since the op was a few weeks ago it could be the maf sensor, people often over oil the filters, not uncommon at all.
when the maf sensor reads low it does read the wrong breakpoint and the fueling is leaner, however it also reads the base afr table incorrectly too, so the mixture is being demanded to read leaner too, and since its in closed loop its always looking for 14.6 in that area, so i'd expect it running in the low to high mid 15's. the stock ecu has a fairly large area for when it wants to be in closed loop. if the maf is way off it'll end up reading in the decel/off throttle area of the map which is much richer than it'd be at idle.
so its looking for 14.6 , getting over 17% short term CLC fuelling and throws a code.
maf, cold air intake or a vacuum leak is the usual cause.
bad injector would cause rougher running and misfires.