Quote:
Originally Posted by DannoXYZ
You can confirm injector issue my moving suspect injector to different cylinder. If the fouled plug moves to different cylinder, that'll confirm it.
RC Engineering and Witch Hunter does injector-cleaning. They'll clean and test flow-rates to match them up. If beyond repair, then you should get a complete new set to ensure they're the same.
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Not a big fan of sending 27 y/o injectors out for a cleaning. I did this when I was having an injector problem, and when the post cleaning report came back telling me that all the injectors were good, it had me second-guessing my diagnosis. Put the cleaned injectors back in and still had the same issue. Finally bought a set of Bosch "new old stock" injectors off of ebay and it has been running great for the past five years. Four new injectors didn't cost a whole lot more than the cleaning service. I suppose the cleaning has a usefulness if you want to do semi-annual preventative maintenance. Also, match flowing injectors involves testing a large batch of injectors and picking out ones that have identical flow rates. As far as I'm aware, there is nothing on an injector that is adjustable.