2.5 300 bogging question

[JSB]

engine is 2.5 300 drag.the engine starts fine & holeshot is good.the problem is as soon as it planes out it bogs and will die unless it is richened with the key.it does this 4 or 5 times & then everything is fine until engine cools down.any help appreciated....

[red hott]

check your spark first in all cyclinders. have you done a spray test on the injectors? what about filters? those checks are easy to do you can ohm the stator and switch boxes. and thats probably where the problem lies any way
stator trigger or switch boxes? hopefuly it isnt the computer but i would guess that that isnt it.
Tray

[MadTing]

Hook up a fuel pressure gauge and check the pressure. If there is a dip in the pressure when bogging, your fuel pump may need to be replaced.

[JSB]

fuel pressure is 56-58 & problem is only when engine is cold

[MadTing]

Are you using the right spark plugs, right heat range?

[JSB]

spark plugs are NGK buzhw

[us1]

Check your ECU temp sensors.

[JSB]

what and where are the ecu temp sensors

[us1]

Just use an ECU tester. It gives all the readouts on the sensors.