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Trying to track down a vacuum leak on my supercharged ls3. I just installed FIC1000 injectors purchased from a member on the CF. I have had an idle issue since the change. Checked all vacuum lines and can not find the leak. The original injectors pulled had RED o rings were they seat in the intake manifold. The FIC injectors have a green o ring were they seat in the intake manifold. Could the green o rings be to small? There are no fuel leaks were they seat.
Thanks, Michael
Trying to track down a vacuum leak on my supercharged ls3. I just installed FIC1000 injectors purchased from a member on the CF. I have had an idle issue since the change. Checked all vacuum lines and can not find the leak. The original injectors pulled had RED o rings were they seat in the intake manifold. The FIC injectors have a green o ring were they seat in the intake manifold. Could the green o rings be to small? There are no fuel leaks were they seat.
Thanks, Michael
you got the wrong o ring on the bottom. the red ones are 15mm used on ls2,3,7,9 and a intakes the green are 14mm used on the ls1,6 and all the truck intakes.. ours id are identical cases of the Bosch ev14. 1 mm smaller o ring will cause a vac leak. call me to get the right o rings.
Thanks for all the advice. I really apriciate it. The red o rings fixed the vacuum leak. Form the pics you can not tell a big differance in size but there is. Amazing how you overlook the easy fixes when in your head your thinking it is something major.
05-20-2015, 11:24 PM
FIC1000 Injectors source of vacum leak?
