Quote:
Originally Posted by Icecreamfoo
Updating an open item - shop found the old injectors that came off my car months ago and finally had them flow tested; see attached pic of the shop readout below for results. in a nutshell, the original injectors were def in bad shape, with 2 of them operating at capacity as low as ~60%. no wonder I was getting bad knocking/pre-detonation under many different driving situations.
Just to share. If anyone is also experiencing the metallic engine knocking/pre detonation noise at low speed or when getting on the gas to push the car, and has tried replacing the cheaper items such as spark plugs, coils, low pressure fuel sensors, etc, fouled injectors could be the real culprit
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Cleaning performed on existing injectors with how many miles/years use? Super exciting to see that your vendor was able to get the flows so closely balanced.