PLEASE help 502 mag mpi efi dying out after run
Gold Member
07-31-2011, 01:18 PM
#15
Registered
Thread Starter
Join Date: Jul 2011
Location: Sorrycuse .N.y.
Posts: 48
Likes: 0
Received 0 Likes
on
0 Posts
Jwool thanks so so much all that makes sense for sure..
went out this morning and fired right up
read codes had none
fuel pressure at shrader valve was 35-40
pulled tank vent hose off to blow through seemed fine.
air filter screen is nasty gonna clean that and throttle body.
but makes sense about that bulletin everything makes sense.
gonna put new fuel hose from tank to mechanical on.
being new to 502 efi coming from 454 carb it could just be the way i am operating the boat.. i do sort of let idle some before shut off but prob not enough... and the motor compartment on the 271 is super qhuit i think so that make sense block radiating heat and heating compartment.. i do open hatch before starting but probably not long enough..
so next step for me is fuel hose and try operating it differently..
but sucks i loosing great great day on the water i cant risk stalling again the sides of my harbor channel are all huge rocks.. cant risk it with current yesterday sucked.... had to jump off to save it from drifting into the rock walls...
thanks everyone for input its great help and advise after switching boats to a totally differnt stlye
love the boat though 1996 formula sr1 271 502 mag
hit 60gps(wont lie 59.8) with a 21p at about 5050 rpm and about 64/65 on speedo was my best so far think i gonna try the 14 5/8 x 23p mirage plus see if anymore top end
went out this morning and fired right up
read codes had none
fuel pressure at shrader valve was 35-40
pulled tank vent hose off to blow through seemed fine.
air filter screen is nasty gonna clean that and throttle body.
but makes sense about that bulletin everything makes sense.
gonna put new fuel hose from tank to mechanical on.
being new to 502 efi coming from 454 carb it could just be the way i am operating the boat.. i do sort of let idle some before shut off but prob not enough... and the motor compartment on the 271 is super qhuit i think so that make sense block radiating heat and heating compartment.. i do open hatch before starting but probably not long enough..
so next step for me is fuel hose and try operating it differently..
but sucks i loosing great great day on the water i cant risk stalling again the sides of my harbor channel are all huge rocks.. cant risk it with current yesterday sucked.... had to jump off to save it from drifting into the rock walls...
thanks everyone for input its great help and advise after switching boats to a totally differnt stlye
love the boat though 1996 formula sr1 271 502 mag
hit 60gps(wont lie 59.8) with a 21p at about 5050 rpm and about 64/65 on speedo was my best so far think i gonna try the 14 5/8 x 23p mirage plus see if anymore top end
Last edited by IamEdZ; 07-31-2011 at 01:23 PM.
08-01-2011, 06:49 AM
#19
Charter Member #232
Charter Member
You could also try and put a 6 gallon tank on it for a test and go out for a rip. This will take out any issue that you may be having with gas, tank.....
__________________
Put your best foot forward!
Put your best foot forward!
08-01-2011, 11:32 AM
#20
Registered
Thread Starter
Join Date: Jul 2011
Location: Sorrycuse .N.y.
Posts: 48
Likes: 0
Received 0 Likes
on
0 Posts
that sound like good plan..was gonna try to rig a 5 gallon can to vst inlet gravity feed from there to see... new fuel line today then gonna pull the sender and see if any gell or gunk in the tank..
and gonna dump seperator filter into a glass and let that sit
anyone have opinion on the whole setup 2 fuel pumps? is thier and easier better way?
and gonna dump seperator filter into a glass and let that sit
anyone have opinion on the whole setup 2 fuel pumps? is thier and easier better way?
