Throttle cut , now No Start? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

teqnick · 08-08-2020, 02:07 AM

Hey all,

Just last week, was cruising at about 60mph, nothing out of the ordinary, when I lose throttle response, almost as if I had a faulty MAF. Luckily, I was able to pull over, but since then, have been unable to get the car to start. No store codes, swapped out MAF. Car has been driving fine up to this point. Any ideas?

Plan on getting it towed to my local 86 shop, but figured I would check here before that.

Car is a 2013 BRZ, Stage 2+ OFT on e85, 80k miles.

Thanks!

padillaricardo48 · 08-08-2020, 02:28 AM

Quote:

Originally Posted by teqnick

Hey all,

Just last week, was cruising at about 60mph, nothing out of the ordinary, when I lose throttle response, almost as if I had a faulty MAF. Luckily, I was able to pull over, but since then, have been unable to get the car to start. No store codes, swapped out MAF. Car has been driving fine up to this point. Any ideas?

Plan on getting it towed to my local 86 shop, but figured I would check here before that.

Car is a 2013 BRZ, Stage 2+ OFT on e85, 80k miles.

Thanks!

First they will tell you to tone it back to stock and plus early models 2013 have many issues with the engine, might wanna swap it to a 2016 and up engine

Sent from my SM-N975U1 using Tapatalk

KDad2 · 08-08-2020, 08:32 AM

Quote:

Originally Posted by teqnick

Hey all,

Just last week, was cruising at about 60mph, nothing out of the ordinary, when I lose throttle response, almost as if I had a faulty MAF. Luckily, I was able to pull over, but since then, have been unable to get the car to start. No store codes, swapped out MAF. Car has been driving fine up to this point. Any ideas?

Plan on getting it towed to my local 86 shop, but figured I would check here before that.

Car is a 2013 BRZ, Stage 2+ OFT on e85, 80k miles.

Thanks!

I had the same thing with my 2013 FRS a few years back. No codes or anything. It did start back up after a couple minutes. Only happened that one time.

p1l0t · 08-08-2020, 04:38 PM

Does the battery have voltage? If not your alternator might be shot. If it does I find it odd that nothing happens when you press the button. Or maybe something does? And you should explain what lights/sounds you get..

Sent from my SM-G975U using Tapatalk

humfrz · 08-09-2020, 12:59 AM

Quote:

Originally Posted by teqnick

Hey all,

Just last week, was cruising at about 60mph, nothing out of the ordinary, when I lose throttle response, almost as if I had a faulty MAF. Luckily, I was able to pull over, but since then, have been unable to get the car to start. No store codes, swapped out MAF. Car has been driving fine up to this point. Any ideas?

Plan on getting it towed to my local 86 shop, but figured I would check here before that.

Car is a 2013 BRZ, Stage 2+ OFT on e85, 80k miles.

Thanks!

When you say "it won't start", do you mean it won't turn over or it won't fire?

teqnick · 08-09-2020, 11:32 AM

Quote:

Originally Posted by humfrz

When you say "it won't start", do you mean it won't turn over or it won't fire?

Lights, and all electric work. The fuel pump is priming, but car just won't fire.

Thanks!

ls1ac · 08-09-2020, 12:30 PM

Still did not answer the question, will the engine turn over quickly? what kind of a noise will it make while trying to start? have you tried to jump the battery? (not booster cables but real jumpers)

teqnick · 08-09-2020, 12:45 PM

Quote:

Originally Posted by ls1ac

Still did not answer the question, will the engine turn over quickly? what kind of a noise will it make while trying to start? have you tried to jump the battery? (not booster cables but real jumpers)

Sorry, answered hurriedly this morning.

Turns over quickly, as normal - just not firing. Have tried jumping the battery as well, yes.

norcalpb · 08-09-2020, 04:34 PM

I had a similar issue that ended up being the fuel pressure regulator

humfrz · 08-09-2020, 07:21 PM

Quote:

Originally Posted by teqnick

Sorry, answered hurriedly this morning.

Turns over quickly, as normal - just not firing. Have tried jumping the battery as well, yes.

Welp, that leaves fuel, compression, air or spark - there I got ya started -

steve99 · 08-10-2020, 08:31 AM

Unplug MAF mass air flow sensor at air box , will car start with maf unplugged ?

Immaculate Fury · 08-13-2020, 04:18 AM

I had this exact thing happen to me when I owned a 2004 Lancer. All the same symptoms. All power worked, car cranks indefinitely, lost throttle response while driving on the highway. Car was running and continued to "run" while it slowly coasted to a stop and died. Could throttle all I wanted and no engine response

It ended up being the crankshaft position sensor

08-08-2020, 02:07 AM	#1
teqnick Junior Member Join Date: Apr 2014 Drives: N/A Location: Chicago, IL Posts: 4 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Throttle cut , now No Start? Hey all, Just last week, was cruising at about 60mph, nothing out of the ordinary, when I lose throttle response, almost as if I had a faulty MAF. Luckily, I was able to pull over, but since then, have been unable to get the car to start. No store codes, swapped out MAF. Car has been driving fine up to this point. Any ideas? Plan on getting it towed to my local 86 shop, but figured I would check here before that. Car is a 2013 BRZ, Stage 2+ OFT on e85, 80k miles. Thanks!

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08-08-2020, 04:38 PM	#4
p1l0t Senior Member Join Date: Jan 2016 Drives: 2016 Subaru BRZ Hyperblue Location: West Hartford, CT Posts: 8,478 Thanks: 22,741 Thanked 9,438 Times in 4,847 Posts Mentioned: 58 Post(s) Tagged: 1 Thread(s)	Does the battery have voltage? If not your alternator might be shot. If it does I find it odd that nothing happens when you press the button. Or maybe something does? And you should explain what lights/sounds you get.. Sent from my SM-G975U using Tapatalk

08-09-2020, 04:34 PM	#9
norcalpb Senior Member Join Date: Oct 2013 Drives: 2013 BRZ, 2023 Model 3 Location: SF Bay Area Posts: 2,345 Thanks: 1,256 Thanked 902 Times in 590 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I had a similar issue that ended up being the fuel pressure regulator

08-10-2020, 08:31 AM	#11
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,996 Thanks: 1,035 Thanked 4,994 Times in 2,984 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Unplug MAF mass air flow sensor at air box , will car start with maf unplugged ?

08-13-2020, 04:18 AM	#12
Immaculate Fury Member Join Date: Jun 2020 Drives: 2014 Red BRZ Premium Location: Alberta Posts: 22 Thanks: 2 Thanked 13 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I had this exact thing happen to me when I owned a 2004 Lancer. All the same symptoms. All power worked, car cranks indefinitely, lost throttle response while driving on the highway. Car was running and continued to "run" while it slowly coasted to a stop and died. Could throttle all I wanted and no engine response It ended up being the crankshaft position sensor

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