Hi Everyone,
I know there are several posts on here in respect of starting problems, and I think I have previously posted one myself, when the symptoms were slightly different, but having replaced many suspect parts, and the problem still persisting; im hoping im not too far away from working out the root cause.
The Problem: Simply Inconsistent POOR Starting! - whether Cold, warm or hot? - Press the clutch, turn the Key, engine Cranks, but wont fire? - typically takes 2-3 attempts when encountering the problem (otherwise starts immediately when not encountering the problem?)
- There are NO Error Codes being logged
- It has had New Fuel Pump & Sender Unit
- It has a New Battery
- It has a New Starter Motor
- It has a New Starter/Alternator/Battery Lead
- It has a New Crank Position Sensor
- It has just had a FULL Service (New Plugs, etc)
Following the Service, the issue went away for about 2 weeks, but has now returned?
Other possibilities I have sourced from different threads but not managed to eliminate yet include...
...Battery -> Board Earth Strap
...Relay #8 (Under Dashboard)
...Relay #11 (Under Dashboard)
...Ignition Switch Assembly?
I dont know whether the fact the vehicle cranks but does not fire would eliminate any the above 4 items?
History wise, the vehicle appears to have only had this issue following the replacement of the Fuel Pump & Sender Unit by OPC last year (although the fuel pressure has been checked by porsche OPC & confirmed fine). - Not sure if this relevant or coincidental?
Once the vehicle is running, it is PERFECT! - Starting is either Immediate when issue not present, or can be 2-3 attempts to start when is present.
Any help or ideas greatly appreciated?
:?
I know there are several posts on here in respect of starting problems, and I think I have previously posted one myself, when the symptoms were slightly different, but having replaced many suspect parts, and the problem still persisting; im hoping im not too far away from working out the root cause.
The Problem: Simply Inconsistent POOR Starting! - whether Cold, warm or hot? - Press the clutch, turn the Key, engine Cranks, but wont fire? - typically takes 2-3 attempts when encountering the problem (otherwise starts immediately when not encountering the problem?)
- There are NO Error Codes being logged
- It has had New Fuel Pump & Sender Unit
- It has a New Battery
- It has a New Starter Motor
- It has a New Starter/Alternator/Battery Lead
- It has a New Crank Position Sensor
- It has just had a FULL Service (New Plugs, etc)
Following the Service, the issue went away for about 2 weeks, but has now returned?
Other possibilities I have sourced from different threads but not managed to eliminate yet include...
...Battery -> Board Earth Strap
...Relay #8 (Under Dashboard)
...Relay #11 (Under Dashboard)
...Ignition Switch Assembly?
I dont know whether the fact the vehicle cranks but does not fire would eliminate any the above 4 items?
History wise, the vehicle appears to have only had this issue following the replacement of the Fuel Pump & Sender Unit by OPC last year (although the fuel pressure has been checked by porsche OPC & confirmed fine). - Not sure if this relevant or coincidental?
Once the vehicle is running, it is PERFECT! - Starting is either Immediate when issue not present, or can be 2-3 attempts to start when is present.
Any help or ideas greatly appreciated?
:?