Thread: fuel regulator hose

There are only 2 hoses (on mine anyway 93 V8i) on the stepper valve, 1 is a large dia. (approx. 13mm ID) hose that connects to the plenum inlet just behind the throttle body. Second hose is a small dia. (3 to 4mm ID) which goes from the stepper valve body plate to the fuel regulator, you may wish to check the tightness of the 3 allen head bolts that hold the stepper to the plenum, they have a bad habit of coming loose, Regards Frank.

Originally Posted by Tank

There are only 2 hoses (on mine anyway 93 V8i) on the stepper valve, 1 is a large dia. (approx. 13mm ID) hose that connects to the plenum inlet just behind the throttle body. Second hose is a small dia. (3 to 4mm ID) which goes from the stepper valve body plate to the fuel regulator, you may wish to check the tightness of the 3 allen head bolts that hold the stepper to the plenum, they have a bad habit of coming loose, Regards Frank.

ok thanks Frank , all the hex bolts are tight just had it all off and put a new stepper gasket on, cleaned stepper and all surrounds useing crc co contact cleaner, when i removed the hex bolts to change gasket i removed the large hose and a small hose(small hose from outlet or nipple on top of cover) the smallhose ran to the drivers side to a light blue plug. bottom nipple on cover had no hose at all, so i take it that the fuel reg hose goes there ? like i said earlier just want hoses in right place.

dwhat does the hose to the drivers side do?

Have no idea what your third hose does, as I said mine has only 2 hoses, maybe someone with your model may be able to help, Regards frank.

Anyone with a 94 v8i help out ?

There was a mod to that plate and 1 hose should go to the charcoal canister for evaprortive emissions. it was to prevent stalling when hot

thanks very much woko , just hope i have the two small hoses on the right connector nipple now ? fuel regulator on bottom one at moment and hose to cannister on top . is it going to make a difference if they are around the other way i wonder....