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pinging
My '93 325i automatic has a problem with pinging under a light load. For example, going up a slight grade at about 30-40 mph.
The car has had a tune up, the fuel injectors cleaned, and the fuel pump replaced (which improved the problem but did not eliminate it.) Is there anything else to check which might cause this? I thought these cars had detonation sensors which prevented this problem. The only other thing I can think of would be that the car has a vacuum leak somwhere - but it does not look obvious by looking at the vacuum gauge aka MPG gauge.) Any tips on what else to look for? Todd '93 325i |
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02-18-2007, 11:47 PM
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Join Date: Nov 2004
Location: Atlanta
Posts: 773
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Rubato,
Are you using 93 octane gasoline? If not, then try a tank-full. |
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02-19-2007, 05:29 AM
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pinging
I've been using 89 Octane Shell Plus grade.
I thought that was within the octane requirement sticker on the car. Is that not correct? |
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02-19-2007, 08:27 AM
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Join Date: Nov 2004
Location: Atlanta
Posts: 773
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I thought that it required at least a 91 octane rated gas. I would just try a tank-full, what can it hurt?
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02-19-2007, 09:27 AM
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