02 225 EFI merc. help

[blackcloud]

225 Merv 225 EFI idles perfect but if you open throttle it starts popping and skipping and finally shuts down. Replaced fuel pump diaphram and cleaned cannister and no change.

[Pearce]

Check your t.p.s. votage. should be around 0.96 at idle.

[blackcloud]

Put new set of spark plugs and rpm increased but still sirges and pops like its lean on fuel. Would injectors be causing this problem? Thanks for any help. This motor runs perfect below 2500 rpms and compression is good on all cylinders.