Z22YH throttle fault codes

grumans

Hi, can anyone help, I have a 2.2 yh direct and having replaced the chain because it had jumped I'm getting the following faults:
Starts on the key but runs rich, hunts badly and won't rev over 3k
I'm getting 2 faults relating to the throttle
P1526 Electronic Throttle Control
P1550 Electronic Throttle Power Management

I would really appreciate it if anyone can help
Regards Grumans cheers

astra22bertoneauto

Check Tb connections, earth connections to start with

grumans

Thanks for that, I fitted a used throttle body tonight and it now runs much better but not quite there yet, starts and idles mint and revs if you are gentle with the throttle, when you plant your foot it splutters ans stinks rich, I will plug it in tomorrow and see what shows, think I might have an airleak problem and or goosed airflow meter.