Starting Issue, Will Only Start When I Stop Trying To Crank Over

[sifting-sideways]

Hi everyone, i'm having a starting issue with my a31 cefiro, it has a s1 rb25det in it, the issue is, the car has been working fine, but lately the car stopped starting when turning the key to start, it would just wind over happly not firing, the strange thing is as soon as i released the key it would start, like between start and on on the key barrel? its getting worse and some times won't even start after releasing key, any ideas? thanks

[DVS JEZ]

Could be a few things like

-fuel pressure/flow

-start signal to ecu is wired up incorrectly

-wombat in the airfilter

[t_revz]

Can only be one thing

-wombat in the airfilter

Or could be a power supply to Ecu fault. Not enough supply while the starter motor is running.

[mico]

dont start it, then it will start ?!?!!

[sifting-sideways]

Found the problem, turned out to be the 2 blue relays under the dash, they were faulty, put new ones in and she's a runner thanks for your ideas tho