Slow start problem
Discussion
My car is taking an age to start.
It's not a hot start problem as I've had all the old immobiliser and alarm replace by Karl baker.
The pump seems to take twice as long as usual to prime, it turns over no problem but it takes for ever to kick in.
I've started to pump the accelerator a couple of times and it starts but it can take 20 seconds or more.
It's almost as if the fuel has drained back to the tank.
Once started its fine.
Any ideas I'm scratching my head.
It's not a hot start problem as I've had all the old immobiliser and alarm replace by Karl baker.
The pump seems to take twice as long as usual to prime, it turns over no problem but it takes for ever to kick in.
I've started to pump the accelerator a couple of times and it starts but it can take 20 seconds or more.
It's almost as if the fuel has drained back to the tank.
Once started its fine.
Any ideas I'm scratching my head.
When your cranking the engine can you smell fuel around the engine bay,, you should so if there's a distinct lack of fumes then you might have a point re fuel rail pressure.
I'd maybe turn it over as your doing but before it fires stop and remove a spark plug,, it really should be wet if there's fuel getting there and it's still not firing, I'd also check the spark while I'm at it, nice fat bugger.
I'd maybe turn it over as your doing but before it fires stop and remove a spark plug,, it really should be wet if there's fuel getting there and it's still not firing, I'd also check the spark while I'm at it, nice fat bugger.
Fuel pump relay on its way out? Check the power supply at the pump terminals when you switch the ignition on and see if you get 12 volts or how long before you do get the 12 volts. If there is no delay then suspect the pump.
If there is a delay then check the switched (ignition on) power to the relay in the same way. If there is no delay to the relay then the relay has failed.
If there is a delay to the relay then possibly an ECU problem.
If there is a delay then check the switched (ignition on) power to the relay in the same way. If there is no delay to the relay then the relay has failed.
If there is a delay to the relay then possibly an ECU problem.
Pupp said:
What ECU are you using? Some have an ignition delay to allow oil pressure to rise before firing... obviously not likely unless you've been fettling maps or doing re-sets for any reason but worth checking maybe
I'm using an emerald, about 6 months old and mapped by Joolz so not expecting any issues thereClassiChimi said:
When your cranking the engine can you smell fuel around the engine bay,, you should so if there's a distinct lack of fumes then you might have a point re fuel rail pressure.
No fuel smell.
I'd maybe turn it over as your doing but before it fires stop and remove a spark plug,, it really should be wet if there's fuel getting there and it's still not firing, I'd also check the spark while I'm at it, nice fat bugger.
I'll give that a try tomorrow, thanks
No fuel smell.
I'd maybe turn it over as your doing but before it fires stop and remove a spark plug,, it really should be wet if there's fuel getting there and it's still not firing, I'd also check the spark while I'm at it, nice fat bugger.
I'll give that a try tomorrow, thanks
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