[solarispete]

Hello all,

I have a 1985 930 Turbo (Euro version), no Computer box under the driver seat.
CIS, adjustable WUR, stock turbo replaced, Fabspeed intercooler, Fabspeed intake/exhaust
done last year.
Had the car since 2010, never had problems with cold starts. One crank will usually get it running.

Few months ago, had issue with fuel pressure when Turbo kicks in and stalling, replaced distributor, CDI/ECU box, and red relays. All was working ok in the summer.

Lately, noticed I have to crank many times (5+) before the engine will even catch. Once
it catches, it dies quickly and takes two more cranks to get it to run ok. Only happens when cold
(left over night). Once it starts, it runs a bit rough for 10 secs and then very smooth with
no problems afterwards.

My mechanic had spent a bit of time troubleshooting, great guy but a bit stumped on this issue.

Fuel pressure seems to drop to 0 overnight. After many cranks fuel pressure builds up and fires.
He found that the AAV wasn't opening so he replaced it with a working one.
Adjusted WUR at 30 psi and running perfect.
checked fuel pressure at and from WUR
checked all ground and power to all sensors on the engine
checked for loose air hoses and wires

He suspects something is leaking internally.

Can someone suggest where else to check?

Thanks in advance!