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rssteiny

06-15-2011 06:30 PM

cutting out

25 sunsation w/ 454mpi cuts out under load replaced feul water seperator, plugs, cap, rotor, wires, coil, moduel in distributer, charging system working fine, all grounds are good, runs on hose fine but when getting on plane it misses and if running with trim down not to bad but trim up and misses, started all at once he pulled into my docks one day running perfect few hours later went to leave andf it was there.

Thanks For Any input.

firehawkcat

06-16-2011 07:30 PM

Check fuel preasure, might be ok on hose load is alot different

johnlaskowski

06-16-2011 09:33 PM

check for plugged injector screens had the same prob on my 502 mpis

FIXX	06-16-2011 10:23 PM

fixx

Quote:

Originally Posted by johnlaskowski (Post 3431223)

check for plugged injector screens had the same prob on my 502 mpis

skydog

06-17-2011 10:24 AM

Quote:

Originally Posted by johnlaskowski (Post 3431223)

check for plugged injector screens had the same prob on my 502 mpis

Took words right out of mouth!!! That's about all that's left! Or just dirty or bad injector. If screens are good.

+2. P.s. check fuel psi under load for sure too!!!

johnny b good

06-18-2011 07:41 AM

Always good to check and rule out anti-siphon vave at the fuel tank....

skydog

06-18-2011 07:43 AM

For sure and checking fuel psi under load will do just that.

Quote:

Originally Posted by johnny b good (Post 3432143)

Always good to check and rule out anti-siphon vave at the fuel tank....

rssteiny

06-18-2011 12:06 PM

Thanks guys ill let you know what it was.

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