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OFT OTS TUNE= Coilpack killer??
So heres an email I just sent to the nice people at Open Flash, does anyone have any insight on this?
Also I don't post that often so please don't slay me if someone out there has already posted the same EXACT topic as me, I DID search haha. "Hello there, I recently purchased an Open Flash Tablet within the last 2 months, and with it I'm running a stage 2 Uel 93 octane tune. Since having the tune on my car I have experienced a P0351 code for the correlating coilpack failure, thankfully I've had that replaced under warranty being under 36K miles. About two days after that repair was done I got a code for P0352, which seems to relate to another coilpack failure. Is there any reason my car is killing coilpacks with this tune? My engine related mods are HKS intake duct, TRD cold air intake, Tomei UEL header, Tomei over pipe, HKS dual resonated front pipe, and a TRD catback. Any feedback would be greatly appreciated." Thank You |
Never heard of this linked to OFT...
Maybe you just have bad luck? Any logs with you on the setup you mentioned? |
While it is very odd that you've fried two coil packs within a few days of each other, mere months after your tune, I don't think this is due to your tune. I've been running stage 1 and 2 tunes on my car for over 6 months and have had no issues.
A possibility though, is that if your header isn't wrapped or coated, your driving habits may be causing the packs to heat up more than usual, causing the failure. |
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Things that appear to increase you chances of coil pack failue are Heavy track use, or extended periods of hard driving in hot conditions, people with tunes and aftermarket mods like headers generally drive harder so it can increase your chances, but its not directly attributable to headers or tunes. your just unlucky some guys get failures some dont, see here http://www.google.com.au/#q=coil+pac...w.ft86club.com |
Current speculation is that coil packs are failing prematurely due to heat, if you have accelerated wear on one coilpack it is likely that (if the heat concept is to be believed) then you have accelerated wear on ALL coil packs, some more than others due to the thermal characteristics of the engine bay. OFT may or may not play into this, many cars have failed coilpacks stock, ots tuned, custom tuned, FI etc.
http://www.ft86club.com/forums/showthread.php?t=30879 I've fried one coipack and replaced it with no issues since. All stock powertrain and anything attached to it. Just a thought, how was the coilpack 'fixed'? Is it plausible that if you did not do it yourself, that the mechanic swapped coil packs between cylinders and so in reality you have only one failed coil pack to date? Might be worth checking over the shop order, I've seen it done before and suggested as a stop gap if it fails during a track day or road trip as a quick fix. |
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I don't drive any differently now than how I did before the exhaust work and tune, I've also never tracked the car. My bad coil that came up with code P0351 was replaced completely, no swapping done to diagnose the issue. It is summer time and it has been in the upper 90's recently, I probably should log my daily driving to see what happens when the code gets thrown. |
If you search that code you will see that the coil packs are a weakness for this engine and there is a long thread on it. The tune may work the coilpacks harder but plenty of people are throwing those codes without a tune. The general consensus is that they start to fail from the heat of the exhaust manifold. You may also find that the dealership just swapped the coils for cyl 1 and 2 around as that is also a common fix for the issue and that is why you are now getting a code on cyl 2.
Links to relevent threads: http://www.ft86club.com/forums/showthread.php?t=30879 http://www.ft86club.com/forums/showthread.php?t=81613 http://www.ft86club.com/forums/showthread.php?t=79798 http://www.ft86club.com/forums/showthread.php?t=52688 |
Is your header wrapped or coated?
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Neither, strongly considering it after all the reading I've done recently. |
My coil pack issues turned out to be nothing more than a loose connection. Make sure all connections are tight and have dielectric grease.
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This has nothing to do with the OFT.
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Don't worry you're not going to be slayed for not doing enough research. The coil-pack failure is slightly common and as everyone else is saying it's not totally known why but its attributed to high engine bay temps. You can't say for certain whether or not it's the tune because technically your engine temps should be higher with those mods and the tune, so all the coil packs get effected by the temps hence why this time coil #2 has failed. Honestly I think you could prolong the life by wrapping the header in maybe a high quality exhaust wrap, and changing the radiator fan activation point to attempt to lower the temps in the bay at least, but only after replacing the coil packs. |
had UEL 93 oct tune for over 10,000km now, no wrapped or coated headers, drive like a maniac everyday and never had a coil pack failure...
hope this helps eliminated any reason to blame OFT+headers! |
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Did the dealer repair it under warranty inspite of the header and tune? I thought it was a straight void of warranty if you messed with anything preCAT or anything that adds power or any changes to calibration. Can you throw some light on this? I am considering an OFT tune myself but not sure if I want to throw away my 6yr 100K warranty on powertrain Thanks in advance |
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