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Cylinder 4 misfire 2003 C4S

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Old 11-12-2017, 03:50 PM
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Schnell Gelb
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If one injector is 'dirty' how clean are the others? Maybe wise to eventually upgrade to the newer Bosch injectors? They are much cheaper now.
Old 11-12-2017, 04:18 PM
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curtsr
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https://seafoamsales.com/

There is one flavor that you can add either to the crankcase (oil) to remove gunk from the internals or to the gas to clean the fuel system.

https://seafoamsales.com/auto/

https://seafoamsales.com/faq-ask-jim/

The other product, a spray foam and a video below on using the spray foam to clean motor top end. I did not use this product, I used the tank additive but I have heard a lot of anecdotal positive reviews over the years:

Old 11-12-2017, 04:24 PM
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curtsr
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Originally Posted by Schnell Gelb
If one injector is 'dirty' how clean are the others? Maybe wise to eventually upgrade to the newer Bosch injectors? They are much cheaper now.
I guess they are all going to be about as clean as any other of them since they all are being fed the same treated fuel.
I'll search about the injectors you alluded to or you can advise me here. Better flow, more hp noted on the butt dyno / actual dyno before and afters?
Edit: I did find another thread where you mentioned upgrading from a one hole to four hole design. I also saw that you like RC injectors; me too, I run RC1000's in my Honda.
Old 11-13-2017, 06:14 PM
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Ahsai
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Good news it was just a dirty injector.



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