Is cleaning injectors easy, or worth it? (archive)
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Posted by Stew on October 28, 2001 at 20:10:34:
(posted from: 70.66.252.64.snet.net (64.252.66.70))
My 87 535 is having problems with NOx emissions and appears to run slightly lean. All rubber induction and vacuum hoses have been replaced as well as the fuel pressure regulator. I replaced the catalytic converter and oxygen sensor and am still high on NOx. I've run about 4 bottles of TechRon through in the last year. About the only items left to inspect and/or repair are the injectors and injector O-rings. Are these easy to remove after 170,000 miles? If I can remove them, is there a preferred method or fluid for cleaning them? For varnished carburetors, I've always soaked them in Chem-Dip (gallon can with strainer included) with good results. Is this fluid OK or will it damage them?
I can get new injectors for $50 each at BavAuto. Is it worth trying to clean them or should I just get new ones?
Any thoughts or past experience?
Thanks.
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