now a starting problem...argh!!!

[ringfeder3]

For some reason i left the key on acc until the battery on my v6 vp drained down to absolutely nothing. i replaced the battery and now cannot get it to start. it will crank all day but just won't kick over.

this is what i have checked:

fuel pump relay- ok
fuel pump fuse- ok
spark- ok
fuel pump- whirring happily
fuel- yes

the car is on dual fuel. i have not run it on gas during the month i have owned it.

i have been trying to start it on petrol but it won't start on gas either.

the security option in the left hand door jamb is 'off'. this hasn't changed.

as stated, it ran perfectly before the battery died. that's the only thing i have changed.

any advice will be much appreciated.

 

[Deuce]

Spark strong or just ok?

 

[ringfeder3]

strong

 

[HarryHoudini]

That happened to me many years ago,fuel pump packed it in and the NRMA guy left the ignition on as he tested to see what was wrong.
It wasn't noticed until the tow truck dropped it off about 2+ hours later,anyway after fuel pump was replaced it would crank but not start,had spark and fuel,eventually we replaced the DFI module & Coil Pack and it fired first turn of the key.Something had burnt out or shorted in the Coil Pack or DFI unit.
Good luck with it.

 

[FXST01]

Auto? In Park or Neutral?

 

[ringfeder3]

auto. in park. just how i have always started. checked tonight using noid light....no pulse at injectors. hence no fuel to start.... thoughts? i suppose if there is no pulse, then the signal is being blocked somewhere...

oh, and i drove 230 km return to a donor vp to get a dfi and coil pack with 200k less km on it.

 

[ringfeder3]

mate is bringing a tech 1 around on saturday to try and work out any error codes.

 

[VPRob]

Grey man said it first: safety position switch. That's where my money is.

 

[vc commodore]

Grey man said it first: safety position switch. That's where my money is.

How will that effect it starting? I have very limited EFI experience, but having the car in neutral or park shouldn't effect it not starting....Or will it?

 

[VPRob]

At the base of the transmission shifter, under the covers, there is a safety switch that senses when the car is in P or N and can therefore safely start, ie, not in gear. The contacts wear, the supports bend/fatigue, compromise the contact and don't sense that the car is in P or N and therefore disable firing. Frequent problem, easy DIY fix, usually no cost. Try moving the shifter around and it may/should make good enough contact to allow starting. If so, that confirms the diagnosis.
Use the search function you'll find a post on fixing the switch. Keep us posted