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Old 01-26-2014, 09:23 PM   #1
Crimson600+HP
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Default Blinking Check Engine Light

Today I had a new anomaly with my car. Was at a local raceway, then lost a huge amount of power and 10mph off my trap speed. Immediately greeted by a flashing check engine light that would flash for no more than 15 seconds than disappear. Obviously I was losing power so I decided to limp the car home. I figured that it may be tune related since I got new ones or possibly bad gas causing a misfire. My SCT tuner wasn't able to pick up and DTC Codes either. Eventually I was able to plug in a 91 octane tune instead of a 93 tune which is what I suspected as a problem.

On the drive back I was being cautious, monitoring my A/F ratio and other aspects. Check engine never came back on until I decided to give it a little gas on a freeway on ramp. Instantly got a blinking CEL again. Rest of the drive home, no issues. Figure I will try to run some newer 93 with a fuel system cleaner/octane booster to see if it was gas related. Then if this doesn't work my only thoughts would be a bad coil or spark plug.

I am just hoping I don't have a cylinder 8 issue looming or something bigger as I am sure the dealership won't warranty anything with my car. Anyone else experience something like this before.
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2013 GT Premium|Brembo|MT82
ProCharger P1SC Stage 2|Full Suspension|New Plans: NA CJ Intake Manifold/OR H Pipe/3.73 Gears
Road Raced|Auto-X'd
Drag Raced|12.4s @ 119.7
Texas Mile|1/2 Mile: 140.3|1 Mile: 166.4|She had more in her!
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Old 01-26-2014, 09:32 PM   #2
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Sounds like an air leak in the intake or charge piping letting unmetered air in
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Old 01-26-2014, 09:45 PM   #3
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Hoping for the best for you. But yeah, you are right I think. A dealership will not touch your motor.
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Old 01-26-2014, 09:46 PM   #4
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Sounds like spark plug to me.
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Old 01-26-2014, 10:17 PM   #5
Crimson600+HP
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Fu$k me. The light finally stayed on so I was able to read a DTC. I'm going to try a new spark plug tomorrow, but I'm thinking I am screwed on this one.



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2013 GT Premium|Brembo|MT82
ProCharger P1SC Stage 2|Full Suspension|New Plans: NA CJ Intake Manifold/OR H Pipe/3.73 Gears
Road Raced|Auto-X'd
Drag Raced|12.4s @ 119.7
Texas Mile|1/2 Mile: 140.3|1 Mile: 166.4|She had more in her!
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Old 01-26-2014, 10:23 PM   #6
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Damn that sucks. Hopefully it just needs a new spark plug and that's it.

How many miles you have on your 5.0? Total and since you went boost.
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Old 01-26-2014, 10:30 PM   #7
Crimson600+HP
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Yeah, not what I was hoping to find out with the tuner.

13,5xx miles right now. Went boosted at the 12k mile point, been running the ProCharger canned tune up until last week which I had a dyno tune done. A/F ratios were not dangerous on either tune...May have to start reading into some warranties here soon.

Tomorrow I will get it looked at if possible, don't want to go to a dealer right away since I know where that conversation will go.
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2013 GT Premium|Brembo|MT82
ProCharger P1SC Stage 2|Full Suspension|New Plans: NA CJ Intake Manifold/OR H Pipe/3.73 Gears
Road Raced|Auto-X'd
Drag Raced|12.4s @ 119.7
Texas Mile|1/2 Mile: 140.3|1 Mile: 166.4|She had more in her!
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Old 01-26-2014, 10:45 PM   #8
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Damn that sucks. Hopefully it's just a plug.
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Hypermotive Tune | Pypes Longtubes and O/R X | Corsa Sports | H&R Race Springs | Eibach panhard bar | BMR LCAs | BMR relo brackets | Koni yellows | Eibach sway bars | Ground Control CC plates | MGW shifter | SVE Drifts |
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Old 01-26-2014, 10:54 PM   #9
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Any smoke? Any water in the oil?
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Old 01-26-2014, 11:16 PM   #10
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Originally Posted by Darkhelmet22 View Post
Damn that sucks. Hopefully it's just a plug.
That's what I am hoping.

Originally Posted by BV600 View Post
Any smoke? Any water in the oil?
Didn't appear to be any smoke. Only thing I have is a real hard start, engine cranking but engine not turning over until after a couple seconds. Didn't have anyone following though to really see it. By the time I got back, it was too dark for me to see. Right now I am just hoping and will try to tackle some of the diagnosing tomorrow.
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2013 GT Premium|Brembo|MT82
ProCharger P1SC Stage 2|Full Suspension|New Plans: NA CJ Intake Manifold/OR H Pipe/3.73 Gears
Road Raced|Auto-X'd
Drag Raced|12.4s @ 119.7
Texas Mile|1/2 Mile: 140.3|1 Mile: 166.4|She had more in her!
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Old 01-26-2014, 11:27 PM   #11
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Boss 302 Crankshaft M-6303-M50B – $242.00
Boss 302R Piston/Rod/Ring Combo M-6100-M50BR – $759.00
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Old 01-27-2014, 12:04 AM   #12
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I hope it's a plug.

Ugh...$1k in parts plus labor...there goes my chances of affording a trailer. I just hope I can get this thing up before the Texas Mile.
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_____________________________________________
2013 GT Premium|Brembo|MT82
ProCharger P1SC Stage 2|Full Suspension|New Plans: NA CJ Intake Manifold/OR H Pipe/3.73 Gears
Road Raced|Auto-X'd
Drag Raced|12.4s @ 119.7
Texas Mile|1/2 Mile: 140.3|1 Mile: 166.4|She had more in her!
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Old 01-27-2014, 12:18 AM   #13
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Originally Posted by Crimson600+HP View Post
I hope it's a plug.

Ugh...$1k in parts plus labor...there goes my chances of affording a trailer. I just hope I can get this thing up before the Texas Mile.
I think those would be the cheapest upgrade route and should handle 700 easily its what I was thinking of doing. I guess your the guinea pig. there's actually a thread going on about these internals you could keep the stock crank and get billet oil pump gears
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Old 01-27-2014, 12:31 AM   #14
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Haha, glad I can help you out here.

I would have to get the stock crank rebalanced though and the boss crank is designed to work with those rods/pistons. I would love to have a forged bottom end...but this situation this sucks.
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2013 GT Premium|Brembo|MT82
ProCharger P1SC Stage 2|Full Suspension|New Plans: NA CJ Intake Manifold/OR H Pipe/3.73 Gears
Road Raced|Auto-X'd
Drag Raced|12.4s @ 119.7
Texas Mile|1/2 Mile: 140.3|1 Mile: 166.4|She had more in her!
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Old 01-27-2014, 01:25 PM   #15
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Just my personal opinion but if the motor is apart I would go ahead and put forged internals. There is no point in doing it twice.
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