fault code do you know this one

[gadgetman]

i have just code read my 2000 seat alhambra 1.9 tdi. because i am having probs starting and this fault has come up, 17656 injection commencement regulation intermittent.: any clues please can anyone help
robin

[Stabata]

im googgling and im finding a lot of info about that fault code on a VW TDi

assuming they use the same fault codes it appears to be, and i quote.

the 17656 is telling you that your dynamic timing on your pump is out of range, when was the timing belt last done or has someone been playing about with the pump???

i hope this helps

PS i have no idea what that means, i just got bored so decided to do some digging for you

PPS

something else i just stumbled upon which makes more sense

The fault codes are indicating that your fuel pump could be on its way out, or something is interfering with fuel supply.

basic jist is from what im reading id your fuel pump could be cream crackered

[DPJ]

From Ross Tech Wiki.......

17656/P1248/004680 - Start of Injection Timing Regulation: Control Deviation
Possible Symptoms

* Loss of Power at high Engine Speeds
* Engine difficult to Start

Possible Causes

* Start of Injection Timing Regulation not OK
* Injection Pump Control Range blocked/dirty (e.g. by Metal Particles)
* Engine has stalled / ran out of Fuel recently
* Wiring/Connectors from/to Injection Valve (N108) faulty

Possible Solutions

* Check/Adjust Injection Start
* Check Fuel Supply
* Check/Replace Fuse(s)
* Check/Repair Wiring/Connectors from/to Injection Valve (N108)

Special Notes

* Might by stored with other codes like 17654/P1246/004678.