Evo Down, but not out!
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Biggiesacks (May 21, 2018)
May 21, 2018, 08:31 AM
#32
EvoM Guru
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Its a diy cop, coils are fine I manually triggered all of them using the tool LGTD suggested.helpful tip to anyone who stumbles on this, don't hold the tool while you fire the coil. Unless you like tazzing yourself and getting laughed at by your SO. By fouled I mean they are covered in black sooty crap, 2 and 3 almost look cleaner every time I pull them out (probably because they are getting an alcohol bath). They are all soaked when I pull them. New plugs went in and same thing is happening to them.
breathe
HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA HAHAHAHAHA.
Sorry...lmao
MAF won't cause spark issues. The car would also run with a bad MAF. To verify it's not the MAF, he can just unplug the MAF and start the car. It will start and idle fine with the MAF unplugged if the MAF is bad.
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Biggiesacks (May 21, 2018)
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Biggiesacks (May 21, 2018)
May 21, 2018, 08:39 AM
#34
EvoM Guru
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He confirmed he's getting erratic spark, and no spark on certain cylinders. That would not be caused by the MAF.
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2006EvoIXer (May 21, 2018),
Biggiesacks (May 21, 2018)
May 21, 2018, 12:57 PM
#35
EvoM Community Team Leader
Thread Starter
My logged MAF hertz are on the money with all the previous logs during cranking (nice advantage to having an openport 2.0 stand alone logging all the time), so im pretty sure its working, also it was giving out good data even when the initial event when the car died.
No worries, she was dying. The way she is with social media I'm just glad there isn't a gif of it on the interwebs.
May 21, 2018, 01:40 PM
#37
EvoM Community Team Leader
Thread Starter
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Biggiesacks (May 21, 2018)
May 21, 2018, 03:24 PM
#40
EvoM Community Team Leader
Thread Starter
Actually there is a bit of a story behind the battery. It took 3 hours for the tow truck to arrive and apparently 2 of the cells where already on the way out so they died while i was waiting. I had to remove the pack replace the 2 bad cells discharge test all the remaining cells, and then rebalance the pack. I have been recharging it in between starting attempts to keep it topped off and monitoring each cells voltage before and after each starting attempt. The pack is rated for 400 amps continuous draw and 16 amp hours, im not sure what that translates to in CCA, but its having no trouble cranking the engine and maintaining sufficient voltage for all the subsystems.
May 21, 2018, 05:19 PM
#41
Just theory. We have no clue.
May 21, 2018, 07:21 PM
#42
EvoM Community Team Leader
Thread Starter
Funny you mention that. My friend owns a stereo shop, so I put a Stinger battery in my car. When I start the car, it runs lean for a few seconds. We're guessing it's due to the car drawing so much on startup, then the battery has to catch up to supply full voltage to the injectors, ETC. We came to that conclusion because the car almost wants to die when I roll up the windows. He said his Evo reacted to the draw from windows, also, no matter how the tune was changed. It would seem the Evo may not have the best system for compensating for the power draws.
Just theory. We have no clue.
Just theory. We have no clue.
May 21, 2018, 08:00 PM
#43
The "Injector Battery Voltage Latency Compensation" table in ecuflash is specifically to deal with this issue. You could try bumping it up a bit in the lower voltage cells and see if that helps. You could also put a DMM on the battery during start up and see what the voltage dips to at the terminals.
Thanks for the advice. I will be trying just that! {bigthumb}
May 22, 2018, 08:46 PM
#44
EvoM Community Team Leader
Thread Starter
Quick update, I think the exhaust camshaft might have snapped. proceeding to pull the valve cover.