Hi,
Got a dreaded issue with my 95 Spi. My first forum post so apologies for vagueness etc.
My mini is struggling to maintain idle. On startup from cold it takes a decent few cranks before finally firing up. once it has started, it fails to self-regulate at idle, often stalling near enough instantly unless you feather the throttle a little. Sometimes it can keep itself going for over 30 secs as it hunts before dying but it does vary.
Regarding the cranking, once its up and going it takes less effort to restarting off stalling. However this long cranking reoccurs when back to cold.
You can drive it fine...until you hit a red light and have to go back to feathering the throttle to stop itself from stalling. Once it warms up, it struggles far less, although still not near stable.
Done a lot of digging around on here, read Sprocket's brilliant and detailed guide on Spi's.
I have checked vacuum lines, replaced lambda sensor and checked relay, indexed throttle, replaced air temp sensor.
And that's where I'm up to.
I realise using a scanner can make it far easier to isolate a problem like this on the spi.However, before I consider that investment at all, is there anything you guys can think of that would be best to check next and how?
I'm going to do further checks on the stepper motor as I know that is an area that could be at fault.
Thanks,
Alex