do efi 4age backfire?

[ash16valve]

kpretro84 Wrote:

Dave W Wrote:The throttle body has a vacuum pot that limits how quickly the throttle can return to the closed position. If it is defective or removed then the throttle plate closes tightly which causes a very high vacuum in the intake manifold, this draws all the fuel off the port walls of the intake. The raw fuel is then pump thru the cylinder into the exhaust manifold on the over run where there is sufficient oxygen in the exhaust system allowing the fuel burn i.e. back fire.
Dave W

hmmmmm Not sure what you mean. Vacuum pot? and whats S3 4age??????? is your guys timing set 10 degrees btdc? without TE1 and E1 jumped? i havnt jumped mine just 10 degrees btdc i think i should play around abit get it running at best

Series 3 Twincam 16 valve