Thread: 930 injectors
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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,265
I've seen guys put in lots of injector cleaner like techron, then rev the engine up and clamp off the fuel return line with needle nose vise grips and a thick rag around the jaws to raise pressure up as high as the pump will make it.

I havn't tried this but he said it seemed to help clean the injectors.

You will dilute the engine oil some with the extreme rich mixture while doing this so changing oil afterwards is a good idea.
Also if the return line is old and dry rotted it will probably be destroyed and leak from clamping it so a recent flexible return fuel line is also a good idea.

This was on a EFI car so I'm not sure if the increased return line pressure might do something bad to the CIS system.

This may be a bad idea so try it at your own risk if you want.
Old 11-11-2007, 06:20 AM
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