Backfire Intake - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Accurate Race Shop · 12-09-2012, 07:07 PM

Quote:

Originally Posted by SherbFrs

Can i get in touch with him to ask some question and share progress!

Thks for let me now that i'm not alone

I asked and no one had his number if I see him around again I'll tell him to get on and message you.

FirestormFRS · 12-09-2012, 07:38 PM

Sounds like severe detonation to me. Can't be 100% without hearing it in person. Could be a fuel injector that isn't fully closing and allowing fuel to leak into the cylinder on the exhaust stroke.

Does sound terminal for the engine if they don't get it fixed before the piston explodes (if it is for sure detonation).

wbradley · 12-09-2012, 08:02 PM

Fuel getting to the intake and detonating. So, the intake valve must be staying open too long, no? I'm not a mechanic, just using logic. Somehow the fuel must be leaking in during the compression stroke.

Otherwise a fuel injector mis-timed or a leak in the valve maybe? There must be enough leak for hot gas to contact and ignite fuel vapour.

Aside from OBDII perhaps check compression to try and find offending cylinder and maybe check VVTi cam angles.

encity5 · 12-09-2012, 08:35 PM

yikesssss. good luck man seriously.

pheoxs · 12-09-2012, 08:56 PM

Quote:

Originally Posted by wbradley

Fuel getting to the intake and detonating. So, the intake valve must be staying open too long, no? I'm not a mechanic, just using logic. Somehow the fuel must be leaking in during the compression stroke.

Otherwise a fuel injector mis-timed or a leak in the valve maybe? There must be enough leak for hot gas to contact and ignite fuel vapour.

Aside from OBDII perhaps check compression to try and find offending cylinder and maybe check VVTi cam angles.

Could be one of the direct injection injectors leaking fuel in, or a valve problem where it opens early/late, or an ignition problem where it sparks at the wrong time. Could be a lot of things but hopefully they can diagnose it before any permanent damage happens.

OP please make sure to keep us up to date with the result in case this is a factory screw up or an actual failure and in case anyone has future similar issues.

sirhc · 12-09-2012, 10:36 PM

what kind of gas are you using?

Grip Ronin · 12-10-2012, 01:22 AM

sounds like a timing issue

Ravenlokk · 12-10-2012, 03:42 AM

Well if they don't want to service it under warranty- make sure you blow it up before your warranty expires... I wouldn't want to keep an engine thats gone through that much premature wear! Who knows how bad the heads look with all that detonation.

SherbFrs · 12-10-2012, 05:37 PM

I've got some news. The director finaly gave me a phone call after my call to another dealer of the region and my idiot complaint to Toyota Canada. He's kind of piss of about me because i he's thinking i'm not fair with them ...

Anyway they told me that it's not the exaust and it's not about the air comming into the engine. They tested a lot of electronic part to control the air flow and the injection system. So the toyota ingineer would probalby order to change the engine and ship the old one back to them for further investigation. Finaly after more then 2 weeks they think it's the engine

And to blame my lack of patience that seems that before my numerous complaint the owner told them that maybe they should pay my month for compensation. So now they are pushing it to me that i was not fair and maybe they will not pay my month cause i've called another dealer and toyota canada ... So we will see what happen really soon.

Thks guy for your support. Hope the best for me.

Gums · 12-10-2012, 06:01 PM

Quote:

Originally Posted by SherbFrs

And to blame my lack of patience that seems that before my numerous complaint the owner told them that maybe they should pay my month for compensation. So now they are pushing it to me that i was not fair and maybe they will not pay my month cause i've called another dealer and toyota canada

Wow! I personally would wait until you have your new engine and see if they compensate you. If not phone/talk to "the owner" giving him the option to reconsider compensation. If he's not forthcoming, go straight to Toyota Canada.

Good luck.

whtchocla7e · 12-10-2012, 07:47 PM

Don't let them make you out to be the bad guy.
They totally blew you off and it took a formal complaint for them to take action.

Tell them to shut the fuck the up and fix the car.

SherbFrs · 12-14-2012, 02:49 AM

Some news after excellent compression and leak test. They tested the injector and the #1 is faulty. So tha't was causing the bakcfire intake.

Finaly after 3 weeks they checked the injector

xjohnx · 12-14-2012, 09:50 AM

Quote:

Originally Posted by SherbFrs

And to blame my lack of patience that seems that before my numerous complaint the owner told them that maybe they should pay my month for compensation. So now they are pushing it to me that i was not fair and maybe they will not pay my month cause i've called another dealer and toyota canada ... So we will see what happen really soon.

Sounds like complete BS to me. I'd ask him if you need to call Toyota again inform them of his (and by proxy, the dealership's) thinly veiled threats.

FirestormFRS · 04-13-2013, 08:05 PM

Glad you got it fixed.

12-10-2012, 01:22 AM	#35
Grip Ronin The Mechanic Join Date: Mar 2012 Drives: Civic Turbo,FR-S Location: NJ Posts: 928 Thanks: 130 Thanked 171 Times in 119 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	sounds like a timing issue __________________ IG-Joey_Soul Progress Thread Ported billet 20G

12-10-2012, 07:47 PM	#39
whtchocla7e Senior Member Join Date: May 2012 Drives: 2013 FR-S Hot Lava Location: CT Posts: 424 Thanks: 30 Thanked 222 Times in 81 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Don't let them make you out to be the bad guy. They totally blew you off and it took a formal complaint for them to take action. Tell them to shut the fuck the up and fix the car. __________________ Live to drive another day

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12-09-2012, 07:38 PM	#30
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Sounds like severe detonation to me. Can't be 100% without hearing it in person. Could be a fuel injector that isn't fully closing and allowing fuel to leak into the cylinder on the exhaust stroke. Does sound terminal for the engine if they don't get it fixed before the piston explodes (if it is for sure detonation).

12-09-2012, 10:36 PM	#34
sirhc Senior Member Join Date: Jun 2012 Drives: fr-s Location: okc,ok Posts: 99 Thanks: 0 Thanked 45 Times in 20 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	what kind of gas are you using?

12-10-2012, 03:42 AM	#36
Ravenlokk Senior Member Join Date: Aug 2012 Drives: 2013 Raven FR-S Location: Vancouver, Canada Posts: 265 Thanks: 34 Thanked 68 Times in 47 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Well if they don't want to service it under warranty- make sure you blow it up before your warranty expires... I wouldn't want to keep an engine thats gone through that much premature wear! Who knows how bad the heads look with all that detonation.

04-13-2013, 08:05 PM	#42
FirestormFRS Senior Member Join Date: Jul 2012 Drives: 2013 FR-S Location: Anytown Posts: 920 Thanks: 73 Thanked 643 Times in 302 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Glad you got it fixed.

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