Big Glanza Issue


Fresh Recruit
Hi there hope all is well, I have owned starlets for a number of years now and have yesterday purchased another glanza. I have purchased this glanza with a spluttery like issue. The previous owner was overtaking a car and went to plant it when engine management light came on and car dies in power. The code is reading no igf signal to ECU, when you half throttle it the car is fine but when you full throttle it feels like a splutter as such. He has replaced the following leads, plugs injectors, dizzy and ecu with nothing changing. Any help on this is appreciated thanks in advance.