starting problems...HELP!

[hawker182]

hmmmm....that could be plausable, let me know if you come up trumps though cause have the day off tomro and gonna get up and have a good dig around out there, as long as the rain holds off. Cheers Stu

Yeah will get on the case with that in the morn, will prob be posting up anything i find throughout the day

[grinder]

these might not help but you never know :

http://www.rx7club.com/showthread.php?t=598202&highlight=AFM

http://www.rx7club.com/showthread.php?t=596522&highlight=AFM

http://www.rx7club.com/showthread.php?t=595055&highlight=AFM

http://www.rx7club.com/showthread.php?t=578747&highlight=AFM

http://www.rx7club.com/showthread.php?t=592404&page=1&pp=15&highlight=AFM

http://howto.globalvicinity.com/gv_wiki.php?wi=95&co=1&vi=1

try the last link first

[Prof]

If you have the round type - this is the one with the cone shaped airflow meter.  The AFM unit also houses the inlet temperature sensor.
 
If the inlet temp sender is not working the ECU assumes 20 degrees I believe.  The AFM itself is meant to measure airflow so that fuelling can be set correctly.  When the car idles, the O2 sensor on the exhaust is responsible for correcting fuel, along with the wax thermo thingy and the BAC valve (load dependancy - lights, aircon etc)  which explains why it runs ok on idle with the AFM unplugged.
 
When you blip the throttle and pull in more air - without the AFM it can\'t map fuelling - so the engine will die.  It does sound like the AFM is broke.
 
The induction kits on ebay are meant to be used with the stock AFM - if you want to eliminate it, you need to map it out somehow (with a replacement ECU or piggy back).  This is done by using the MAP sensor and the RPM to work out the airflow.

[hawker182]

Stu, Prof thankyou very much sounds like the AFM is knackered, those links all point to the same thing too. Just need to find one now, am i correct in saying that the round cone shaped one is from an S5 and i will be needing it to be from a TurboII and not an EGI.