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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.

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Old 02-16-2016, 12:57 PM   #29
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Holding full throttle before and while cranking the engine triggers flood-clearing mode. Fuel is cut. We can listen for obvious valve and compression issues by cranking the engine this way. If there is a cylinder leaking, we'll hear an uneven lope as the starter motor fails to labor over that cylinder's compression stroke. If you want, maybe upload another clip.

I hear something leaking in your first vid but I think it's just a vacuum line disconnected.

Compression test would be a bitch because it involves a pressure gauge in place of a spark plug.
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Old 02-17-2016, 12:39 AM   #30
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Quote:
Originally Posted by Ultramaroon View Post
Holding full throttle before and while cranking the engine triggers flood-clearing mode. Fuel is cut. We can listen for obvious valve and compression issues by cranking the engine this way. If there is a cylinder leaking, we'll hear an uneven lope as the starter motor fails to labor over that cylinder's compression stroke. If you want, maybe upload another clip.

I hear something leaking in your first vid but I think it's just a vacuum line disconnected.

Compression test would be a bitch because it involves a pressure gauge in place of a spark plug.
I will be purchasing a MAF sensor this weekend from the local dealer, once I do that I will record a video in flood clearing mode. I will also have the MAF installed and hopefully both these diagnoses shall shed some light on the issues I'm facing.

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Old 02-19-2016, 07:43 PM   #31
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Hey guys,
Got some good news and more bad news.
The good: I used my existing MAF sensor as I didnt want to pay over $200 for a new one. Now i talked to the local dealership and they said my car should be able to start without a MAF and it will be fine just not optimal. I was also able to remove the MAF sensor attached to the car, remove the broken pieces of plastic it was attached to and today I plugged it back in the car and left inside the pipe instead leaving it hanging outside. I started the car in flood clearing mode first and it didnt start, so then i tried starting it normally and guess what? It did.

THE BAD NEWS: The car would stall immediately if i didn't continuously push the throttle to keep the RPMs high. As soon as I let go of the throttle it would immediately drop without idling and stall/die. I also have more problems now and I feel like I need to start a new thread (and link to it here) regarding new issues.

NEW THREAD FOR NEW ISSUES: http://www.ft86club.com/forums/showthread.php?p=2554492

Last edited by driftking96; 02-19-2016 at 08:21 PM.
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Old 02-19-2016, 10:49 PM   #32
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Quote:
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Hey guys,
Got some good news and more bad news.
The good: I used my existing MAF sensor as I didnt want to pay over $200 for a new one. Now i talked to the local dealership and they said my car should be able to start without a MAF and it will be fine just not optimal. I was also able to remove the MAF sensor attached to the car, remove the broken pieces of plastic it was attached to and today I plugged it back in the car and left inside the pipe instead leaving it hanging outside. I started the car in flood clearing mode first and it didnt start, so then i tried starting it normally and guess what? It did.

THE BAD NEWS: The car would stall immediately if i didn't continuously push the throttle to keep the RPMs high. As soon as I let go of the throttle it would immediately drop without idling and stall/die. I also have more problems now and I feel like I need to start a new thread (and link to it here) regarding new issues.

NEW THREAD FOR NEW ISSUES: http://www.ft86club.com/forums/showthread.php?p=2554492
The engine wasn't supposed to actually start. That's the whole reason for the flood-clearing mode. Without coolant, the critical parts of the engine will overheat in very short order: a minute or so.
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