I have a 1987 924S and recently is stopped starting on first shot and now requires a bit of cranking before it starts. Usually it will start on the second attempt but sometimes requires a 3rd or 4th. This happens hot or cold, after sitting over night or immediately after starting. Sitting time and temperature appears to have no impact on this new issue.
New Parts (replaced after issue started):
DME Relay
Reference Sensors
Fuel Pump & check valve (old pump began wining)
Cap & Rotor
Idle Stabilizer
Fuel Pressure Regulator
Vacuum lines
Any thoughts? Thank you in advance for your help.
~Andrew
