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- '02 Mazda Protege5
Today my engine started pinging. I hear it when I'm going uphill or if I accelerate after it shifts into 3rd or OD. I do have to be driving under 40 to actually be able to hear it over the road noise, so it's not that loud.
Other posts have said to check the knock sensor. Is there a way to check it with a multimeter?
I don't want to just throw parts at it blindly, I'd like to test each sensor with the multimeter if there is a way to do so. (like the MAF, O2, etc).
I also read it could be a vacuum leak. in fact, last year i had ping, and it was cause of a cracked intake tube. I changed that and went away. so maybe there's air leaking somewhere else. Anyone have a diagram of all the vacuum lines?
I have no CEL codes (which is good because my NY inspection is due -lol), but the other day I changed the VTCS solenoid (or whatever the one on the right is-white connector) because it had a P0660 code. Not sure if it's related.
I suppose putting 89 octane in it will help, but that doesn't cure the underlying problem.
car only has 86k miles and there are no other symptoms at all (runs like new). changed spark plugs, wires, and coils last year.
is mild pinging going to damage the engine?
Other posts have said to check the knock sensor. Is there a way to check it with a multimeter?
I don't want to just throw parts at it blindly, I'd like to test each sensor with the multimeter if there is a way to do so. (like the MAF, O2, etc).
I also read it could be a vacuum leak. in fact, last year i had ping, and it was cause of a cracked intake tube. I changed that and went away. so maybe there's air leaking somewhere else. Anyone have a diagram of all the vacuum lines?
I have no CEL codes (which is good because my NY inspection is due -lol), but the other day I changed the VTCS solenoid (or whatever the one on the right is-white connector) because it had a P0660 code. Not sure if it's related.
I suppose putting 89 octane in it will help, but that doesn't cure the underlying problem.
car only has 86k miles and there are no other symptoms at all (runs like new). changed spark plugs, wires, and coils last year.
is mild pinging going to damage the engine?