Car slow to start? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ericmpena · 08-25-2013, 04:22 PM

I have less than 5k miles and had only had my car since June. Today when I tried to start it up the engine just stayed cranking for about 5 seconds and then it finally started. This is the first time it's happened. I've already had my first oil change at 3250 miles.

Should this be happening so soon? I'm thinking about taking it to the dealership just to be safe. Has anyone else had this happen so early on?

xjohnx · 08-25-2013, 06:17 PM

Quote:

Originally Posted by ericmpena

I have less than 5k miles and had only had my car since June. Today when I tried to start it up the engine just stayed cranking for about 5 seconds and then it finally started. This is the first time it's happened. I've already had my first oil change at 3250 miles.

Should this be happening so soon? I'm thinking about taking it to the dealership just to be safe. Has anyone else had this happen so early on?

It happened to me once or twice when stock (out of hundreds of starts). Both times it happened the engine was cold parked on an incline (nose pointed down). Never really pursued it since it was so intermittent and not repeatable.

Wo6M · 08-25-2013, 08:58 PM

You could bring it in and have your battery load tested. If it fails it would be replaced under warranty. Although what they dont tell you is the replacement batter is NOT under warranty and next batter change will be out of pocket but that battery WILL be covered .
LOL crazy huh...

BRZnut · 08-25-2013, 09:40 PM

I have had the car since Nov and it has happened to me twice but both times it was a warm re-start. (parked for 15 min)

pheoxs · 08-26-2013, 12:57 AM

This happened to me 3 times over the winter. It only seems to do it if I turn the key all the way in one motion. If I turn the ignition on, let the tac sweep then start, it's never done it. Maybe the fuel pump isn't priming the direct infection pump? No idea

Sent from my Nexus 4 using Tapatalk 4

Porsche · 08-26-2013, 02:51 AM

Port injection fuel pressure may be around 40-60 psi, while the direct injection fuel pressure may be 2000-3000 psi, quite a bit higher. The high pressure fuel pump takes a little while to build that much pressure in the system – it needs time.

When I get into my BRZ, I first turn all the electronics to ON (I press my START button twice), then adjust my seat and put on my seatbelt. By then my fuel pump has had time to build the required pressure. The engine starts immediately, now.

finch1750 · 08-26-2013, 05:16 AM

Quote:

Originally Posted by Porsche

Port injection fuel pressure may be around 40-60 psi, while the direct injection fuel pressure may be 2000-3000 psi, quite a bit higher. The high pressure fuel pump takes a little while to build that much pressure in the system – it needs time.

When I get into my BRZ, I first turn all the electronics to ON (I press my START button twice), then adjust my seat and put on my seatbelt. By then my fuel pump has had time to build the required pressure. The engine starts immediately, now.

This. I had the same problem, and now turning it to "ON" for a few seconds and have not had an issue since.

FRSBRZGT86FAN · 08-26-2013, 07:47 PM

Quote:

Originally Posted by Porsche

Port injection fuel pressure may be around 40-60 psi, while the direct injection fuel pressure may be 2000-3000 psi, quite a bit higher. The high pressure fuel pump takes a little while to build that much pressure in the system – it needs time.

When I get into my BRZ, I first turn all the electronics to ON (I press my START button twice), then adjust my seat and put on my seatbelt. By then my fuel pump has had time to build the required pressure. The engine starts immediately, now.

Wait, doesn't the HPFP require the engine to be running to work? I though it ran off the camshaft or something? Or maybe its not required on start ups so the electronic fuel pump does all the heavy lifting?

mav1178 · 08-26-2013, 08:44 PM

[ame="http://en.wikipedia.org/wiki/Common_rail"]Common rail - Wikipedia, the free encyclopedia[/ame]

Keep in mind there's two pumps on our car.

-alex

FRSBRZGT86FAN · 08-28-2013, 01:00 AM

Quote:

Originally Posted by mav1178

Common rail - Wikipedia, the free encyclopedia

Keep in mind there's two pumps on our car.

-alex

I am aware of that but he mentioned High pressure lines and what not

andrew20195 · 08-28-2013, 03:29 PM

Quote:

Originally Posted by Porsche

Port injection fuel pressure may be around 40-60 psi, while the direct injection fuel pressure may be 2000-3000 psi, quite a bit higher. The high pressure fuel pump takes a little while to build that much pressure in the system – it needs time.

When I get into my BRZ, I first turn all the electronics to ON (I press my START button twice), then adjust my seat and put on my seatbelt. By then my fuel pump has had time to build the required pressure. The engine starts immediately, now.

The engine starts using port injection only, as the high pressure fuel pump is mechanical. It switches to dual mode after a few seconds.

If you have a long crank time, it may be related to the cam sensor signal issue, for which there is a Subaru TSB.

08-25-2013, 08:58 PM	#3
Wo6M Keep Calm And Drift On~ Join Date: May 2013 Drives: Scion FR-S WhiteOut 6 Speed Manual Location: Boca Raton ,FL Posts: 268 Thanks: 202 Thanked 114 Times in 61 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	You could bring it in and have your battery load tested. If it fails it would be replaced under warranty. Although what they dont tell you is the replacement batter is NOT under warranty and next batter change will be out of pocket but that battery WILL be covered . LOL crazy huh... __________________ 2013 Scion FR-S White Out Six Speed Manual Name: Deava Mods:

08-26-2013, 12:57 AM	#5
pheoxs Hold my beer n watch this Join Date: Nov 2012 Drives: '14 Fiesta ST / '91 240sx Location: Calgary, Alberta Posts: 782 Thanks: 214 Thanked 301 Times in 177 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	This happened to me 3 times over the winter. It only seems to do it if I turn the key all the way in one motion. If I turn the ignition on, let the tac sweep then start, it's never done it. Maybe the fuel pump isn't priming the direct infection pump? No idea Sent from my Nexus 4 using Tapatalk 4 __________________ Nolan

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08-25-2013, 09:40 PM	#4
BRZnut Senior Member Join Date: Oct 2012 Drives: BRZ DGM Limited Location: USA Posts: 1,237 Thanks: 5 Thanked 431 Times in 250 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	I have had the car since Nov and it has happened to me twice but both times it was a warm re-start. (parked for 15 min)

08-26-2013, 02:51 AM	#6
Porsche Senior Member Join Date: Jan 2013 Drives: 2013 BRZ Ltd. MT Location: USA Posts: 847 Thanks: 399 Thanked 660 Times in 377 Posts Mentioned: 39 Post(s) Tagged: 1 Thread(s)	Port injection fuel pressure may be around 40-60 psi, while the direct injection fuel pressure may be 2000-3000 psi, quite a bit higher. The high pressure fuel pump takes a little while to build that much pressure in the system – it needs time. When I get into my BRZ, I first turn all the electronics to ON (I press my START button twice), then adjust my seat and put on my seatbelt. By then my fuel pump has had time to build the required pressure. The engine starts immediately, now.

08-26-2013, 08:44 PM	#9
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,099 Times in 3,030 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	[ame="http://en.wikipedia.org/wiki/Common_rail"]Common rail - Wikipedia, the free encyclopedia[/ame] Keep in mind there's two pumps on our car. -alex

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