Subject	just did a little investigative work... >
Posted by	WE350Z on August 24, 2015 at 3:41 PM
	This message has been viewed 374 times.
In Reply To	Loud pop / crack sound from engine bay, dash lights on, >> posted by WE350Z on August 23, 2015 at 11:17 PM
Message	See video links below. Car started right up and throttle revved fine right away in neutral. Once warm I backed her up then as soon as I put her in first and tried to drive forward and hit the gas pedal the engine stutters and wants to fall flat on its face. If I let go of the throttle returns to normal idle. I reset the ECU by disconnecting the battery and now everything seems fine. Drove it around the parking lot I am getting positive boost pressure (was only able to boost a couple PSI due to the amount of runway - I still need to make sure it's not in safety boost mode just afraid of getting stranded). Also definitely not the charging system. Battery read >12V with surface charge removed and >14V consistently at idle according to my VOM. Video #1 - after starting and letting warm up, then backing up and attempting to drive forward in first gear Video #2 - stopped and started engine with ignition key, attempted to drive forward in first gear again same issue Video #3 - in neutral pushing throttle cable by hand Video #4 - after resetting ECU by disconnecting batter cable throttle seems fine Wondering if this has been a problem for a while. I regularly disconnect the battery because sometimes I don't drive the car for 2 weeks at a time. _____________________ 2006 Yamaha R1 Anniversary Edition 2006 Scion tC (Sold) 2004 Yamaha YZF-R6 (Sold) 2003 Nissan 350Z Track (Sold) 2000 BMW X5 4.4i 1993 300ZX Twin Turbo 1985 Nissan 300ZX NA (Sold) http://WE350Z.com>v WE350Z at gmail dot com
Follow Ups	Loud pop / crack sound from engine bay, dash lights on, >> - WE350Z 23:17:42 08/23/15 Re: Loud pop / crack sound from engine bay, dash lights on, >> - ZUL8TR 06:07:15 08/24/15 Was the car boosting at the time this happened? Just - jzack 18:07:23 08/24/15 i think it was boosting - WE350Z 20:09:47 08/24/15 Good point....post updates on the shop findings. (n/m) - jzack 08:06:57 08/25/15 Could not reproduce issue. I checked the ECU for codes >> - WE350Z 13:50:58 08/25/15 just did a little investigative work... > - WE350Z 15:41:45 08/24/15 Re: Loud pop / crack sound from engine bay, dash lights on, >> - WazTTed 18:13:39 08/25/15 Re: Re: Loud pop / crack sound from engine bay, dash lights on, >> - WazTTed 18:15:00 08/25/15 Re: Loud pop / crack sound from engine bay, dash lights on, >> - MaxxAction 18:52:22 08/25/15 Ran fine all day today so don't think its CAS or Alternator> - WE350Z 00:18:53 08/26/15 Wouldn't hurt to put some MAF cleaner through the MAFs - Polish 01:44:14 08/27/15 Good idea - how do you apply it / where on the MAF do you >> - WE350Z 17:25:52 08/27/15 You have to remove the MAFs from the intake plumbing - Polish 22:37:19 08/27/15 Also if you have further issues, returning to a single MAF - Polish 00:07:29 08/28/15 yep this also came to mind - need to isolate the issue... (n/m) - WE350Z 02:44:32 09/02/15 CRC safe for plastic electronics spray cleaner. - ttz'in (norcal) 15:15:02 08/29/15 yeah was eyeing CRC available at Home Depot / Walmart (n/m) - WE350Z 02:43:42 09/02/15
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