e36 OBD II error (P0442) Evap Leak Small
09-01-2012, 03:36 PM
#1
Race Director
Thread Starter
e36 OBD II error (P0442) Evap Leak Small
Small evap leak error
From first hand experience I've found the problem to be caused by:
1) Gas cap - cheap and easy first try fix
2) Evap canister - minor pain to remove, located above the right wheel liner between the liner and the fuel filler neck. have to remove the RR wheel and liner to get to it. 3 or 4 hoses attached, most likely one of the small hose nipples will be cracked at the canister. Can sometimes use plastic cement to (temp) repair it. My repair attempt lasted about 9 mos., next time I just replaced the canister.
3) Main fuel line hose between filler tube and fuel tank - about the size of a radiator hose w/ 90 deg bend. It loops over the RR axle and goes into the fuel tank. Found the filler end was loose by accident and hose clamp just couldn't get a tight fit. Replaced the hose ($55 - 80 depending on source) and error went away. Happened to be doing a major service on the car, when checking CV boots noticed fuel hose wasn't seated all the way on the (long) filler neck. Tried to tighten but it just wouldn't get a firm grip on the filler neck (tank end was fine), new hose fits nice and snug on both ends.
No more P0442 errors.
From first hand experience I've found the problem to be caused by:
1) Gas cap - cheap and easy first try fix
2) Evap canister - minor pain to remove, located above the right wheel liner between the liner and the fuel filler neck. have to remove the RR wheel and liner to get to it. 3 or 4 hoses attached, most likely one of the small hose nipples will be cracked at the canister. Can sometimes use plastic cement to (temp) repair it. My repair attempt lasted about 9 mos., next time I just replaced the canister.
3) Main fuel line hose between filler tube and fuel tank - about the size of a radiator hose w/ 90 deg bend. It loops over the RR axle and goes into the fuel tank. Found the filler end was loose by accident and hose clamp just couldn't get a tight fit. Replaced the hose ($55 - 80 depending on source) and error went away. Happened to be doing a major service on the car, when checking CV boots noticed fuel hose wasn't seated all the way on the (long) filler neck. Tried to tighten but it just wouldn't get a firm grip on the filler neck (tank end was fine), new hose fits nice and snug on both ends.
No more P0442 errors.
