Fuel Injector Expert Needed
#11
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Good point. I route the o2 sensor cable such that ignition noise is not recorded with few exceptions and for those I can tell what is noise and what is the base signal. #7 does have some ignition noise at high rpm but the base o2 signal is evident and still way leaner than the others at that high rpm. The computer voltage is too low to influence the o2 signal.
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If you swap injectors, the easiest test, take a look at the input screen.. I have sprayed carb cleaner thru them backwards with 12v applied for a short time and washed out some junk.. Spray it on a white paper towel and you will see if there is anything there. If nothing shows up.. the injector may need cleaning or maybe replacing.
Was this a matched set when you started or just the stock injectors?
Was this a matched set when you started or just the stock injectors?
#14
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what if you sprayed carb cleaner around 5 or 7 cyl,,,while you do one of your test,,,,if you did have a leak wouldnt it drive the ratio rich,,,and maybe then you could say you dont have an air leak
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Well sorry I can not be sraying anything going down the lake at WOT with the engine hatch closed. What are yiou thinking?
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at dock ,two guys ,hatch open,,,do your test,,,,anyway you can ,,,just trying to drive the the 02 sensor rich to see if it is an air leak,,,,,,you wont need to look at the other cyl just those two,,,this can be done at the dock at idle
Last edited by TWIN-SPINS; 05-11-2009 at 05:41 AM.
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