secondary fuel injectors, how hard to change
remove upper intake manifold
unbolt secondary fuel rail
remove injectors
replace injectors
check for fuel leaks with fuel pump check (yellow two wire plug)
replace uim gasket (clean old surface)
reinstall uim
reconnect throttle cables
done
unbolt secondary fuel rail
remove injectors
replace injectors
check for fuel leaks with fuel pump check (yellow two wire plug)
replace uim gasket (clean old surface)
reinstall uim
reconnect throttle cables
done
on a non turbo s4 (probably s5 too) you can change your secondary injectors by just removing the intake pipe for access, it's very easy.
Last edited by arghx; Jul 19, 2008 at 04:54 PM. Reason: but I see you have a T2 in your sig...
No you don't remove the UIM...they're practically staring at you. The secondary fuel rail is right below the intake pipe/hose...or towards the passenger side of the throttle body. I'm not sure if there is any difference from N/A to Turbo...if there is then disregard.
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1st Generation Specific (1979-1985)
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