help please

[Nova_Dog]

my redtop gsi is holding back power till it get by 4000 rpm but sometimes it ok what can it be can any1 help plz:d

[swedge]

Any eml light?

[Nova_Dog]

yeh but only when it is holding back bud

[wwmnw]

Have you checked the cam/crank sensors, done a code check on the ECU?

[Danny s-p]

dose it hold back when it getting hammered and ok when driven normal

[AlexW]

Done a code check on the ECU?

Do this, like pissing in the wind otherwise.

Guide on topbuzz will help, but your prob need to do a bit of wire hunting for the correct colour to earth.