Hello:
I've recently noticed some pinging in my car at low RPM (less than 2000). I don't hear anything at RPM above 3000. I checked all the plugs, plug wires, timing and everything looks OK. I recently changed to BOSCH plugs instead of NGK.
Anyone have any ideas on likely causes of pinging? Thanks.
PK
Well, you could replace those crappy Bosch plugs with new NGK's.
It is possible that the Bosch plugs have hotter hot spots than the NGKs did. This is only a 50/50 thing, but since the symptoms showed up after the change I would start by retracing my steps and putting plugs which exactly match your prior NBKs.
John
PK, I have a 99 Accord and I know for a fact that my 99 accord has a "knock sensor". It's my guess that your car also has a knock sensor since it was also built in 99. It might be defective--just guessing. If you still have the old plugs--put them in to see if they solve the problem. I doubt that the bosch plugs are the source of the problem unless they are the wrong type plugs for your car. Jason
Sounds like the new plugs are the wrong heat range for your engine. Plugs in higher heat ranges reach farther into the combustion chamber and can get hot enough to pre-ignite the fuel.
Mike
always use ngk plugs in your honda. they're the highest quality. get the g-power platinum ones if you can or if you really can afford it get irridium ones. and make sure you dont buy generic plug wires. ngk plug wires meet the specs of honda also.
hondaman, Great post and great advice. I have NGK plugs in my 99 Accord and they are working great. I've seen several posts related to Bosch plugs. I don't know the reason--but they don't always work well in Honda cars. I don't know how they work in cars made by other companies. Several months ago, one of the subscribers used Bosch Platinum plugs in his Honda and ended up having to remove them due to the problems they caused--I hope that he was able to get his money back since Platinum plugs are expensive. Jason
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