www.imoc.co.uk

Thanks for your response guys, Just got my car back shall work through these potential solutions tomorrow

It had a nasty made subaru muffler with a cat when I bought it, swapped it with a decat powerflow that came with the car, may be a possibility however I do get full power on a cold start up for about 30 seconds

Hi Nic,

Yup, ive checked the diagnostics and its telling me its under normal system operation. Im pretty stumped tbh

Afternoon you lot of intelligent beings. Any assistance would be appreciated. I have a Jap Imported Rev3 3sge . Long story short, after experimenting, on a cold start my car operates normal, revs quickly and pulls good (cold start - bad I know but just a test). However after about 30 seconds of driv...