Engine Cranks But Wont Start
- Thread starter Motorhead
- Start date
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Nick7602
Member
Hi Guys
Good Morning hope everyone is keeping safe
I have a concern, Ileft the car idling for about 30 mins last night while I mowed the lawn, oddly there was a very slight rise in revs as if someone had depressed the clutch momentarily, I decided a short while later to take the car for spin, turned on the sports mode, car chugged buffeted then died, 100yds from my house, re charged the battery, changed the battery in the key fob.....with the battery now fully charged....the car will still crank but no start
So Im at a loss really
Kind Regards
Nick
Good Morning hope everyone is keeping safe
I have a concern, Ileft the car idling for about 30 mins last night while I mowed the lawn, oddly there was a very slight rise in revs as if someone had depressed the clutch momentarily, I decided a short while later to take the car for spin, turned on the sports mode, car chugged buffeted then died, 100yds from my house, re charged the battery, changed the battery in the key fob.....with the battery now fully charged....the car will still crank but no start
So Im at a loss really
Kind Regards
Nick
Nick7602
Member
Hi Lads
Cayman 987.1 S Sport Edition
Mil Light on the dash saying check engine, fully fuelled car, fuel pump goes through the prime routine you can here the pump working, could it be the pumps on the way out brief rise in revs when idling?
115K mileage engine, sweet as a nut until last night oddly
Cayman 987.1 S Sport Edition
Mil Light on the dash saying check engine, fully fuelled car, fuel pump goes through the prime routine you can here the pump working, could it be the pumps on the way out brief rise in revs when idling?
115K mileage engine, sweet as a nut until last night oddly
Nick,
Fuel supply could be the problem but you’d need to confirm that you’re getting a spark before taking that route … not that easy on the F-6 layout! I suppose you could try disconnecting the MAF sensor to see if you can get the engine to start (the system reverts to a default setting), but I’m not hopeful.
As Dave says your best bet is to get some diagnostics on the case to give an indication where the problem lies since this will show if the fuel line pressure is OK and if the ignition is functioning.
Jeff
Fuel supply could be the problem but you’d need to confirm that you’re getting a spark before taking that route … not that easy on the F-6 layout! I suppose you could try disconnecting the MAF sensor to see if you can get the engine to start (the system reverts to a default setting), but I’m not hopeful.
As Dave says your best bet is to get some diagnostics on the case to give an indication where the problem lies since this will show if the fuel line pressure is OK and if the ignition is functioning.
Jeff
Nick,
On the subject of suitable diagnostic kit iCarsoft sell Porsche-specific devices and seem to be well respected, although I can’t speak from experience.
https://ljmcardiagnostics.co.uk/collections/icarsoft/brand_porsche
These cheap analysers are good for the basic DIY stuff, but for more complex problems it’s essential to have PIWIS or equivalent. You might also want to look at the more expensive Durametric offering.
https://www.gendan.co.uk/porsche.php?gclid=EAIaIQobChMIws7W0IHd7wIVge_tCh1AaA8TEAAYASAAEgJXQvD_BwE
Jeff
On the subject of suitable diagnostic kit iCarsoft sell Porsche-specific devices and seem to be well respected, although I can’t speak from experience.
https://ljmcardiagnostics.co.uk/collections/icarsoft/brand_porsche
These cheap analysers are good for the basic DIY stuff, but for more complex problems it’s essential to have PIWIS or equivalent. You might also want to look at the more expensive Durametric offering.
https://www.gendan.co.uk/porsche.php?gclid=EAIaIQobChMIws7W0IHd7wIVge_tCh1AaA8TEAAYASAAEgJXQvD_BwE
Jeff
Nick7602
Member
Thanks Jeff
Yes it would be beneficial for the rest of the guys if they were possibly thinking of purchasing a diag kit.
And I think ICarsoft is an affordable alternative for a quick heads up data capture, you can then supply this to your preferred Porsche Specialist or OPC to prime them prior to your visit.
Nick
Yes it would be beneficial for the rest of the guys if they were possibly thinking of purchasing a diag kit.
And I think ICarsoft is an affordable alternative for a quick heads up data capture, you can then supply this to your preferred Porsche Specialist or OPC to prime them prior to your visit.
Nick
Adrian Thompson
New member
To re-set PSM turn steering wheel lock to lock, and then drive at about 6-10 mph and it will re-establish where the wheels are pointing. To sort your windows, open fully both sides.. Close fully both sides and all should be sweet.
Its a Porsche thing - show it who is boss.
Sorry, didn't see that the engine won't start - can't help with that....
Its a Porsche thing - show it who is boss.
Sorry, didn't see that the engine won't start - can't help with that....
Do you not have membership of the AA or equivalent? I have Brittannia Rescue and also get it covered by insurance and with home start I would be phoning them. I would expect them to be able to give a diagnosis if it is a straightforward problem. Good luck.
It may be fully charged but not putting out the right voltage if it's old and worn? Old batteries have been known to throw up lots of faults as the electrical system is very sensitive.
I wouldn't rule out a faulty battery just yet unless you know it's only a couple of years old.
I wouldn't rule out a faulty battery just yet unless you know it's only a couple of years old.
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