Ignition coil testing

SouthArk370Z · 08-10-2020, 08:41 AM

When was the last time you cleaned your MAFs? May not be your problem but it's a very easy job and probably needs to be done anyway - screwdriver, MAF spray, and about 5 minutes per side. At least one DIY thread on this site.

Edit: If your air filter is more than 2-3 years old, go ahead and replace it.

Wilson2608 · 08-11-2020, 09:36 AM

Quote:

Originally Posted by SouthArk370Z

When was the last time you cleaned your MAFs? May not be your problem but it's a very easy job and probably needs to be done anyway - screwdriver, MAF spray, and about 5 minutes per side. At least one DIY thread on this site.

Edit: If your air filter is more than 2-3 years old, go ahead and replace it.

Went ahead and ordered new filters and will clean the MAFs just in case. I hopefully think I figured out the issue. Inspecting spark plugs showed fresh oil covered all over the plug threads, replacing spark tube seals and valve cover gaskets. I’m hoping the oil caused the misfire.

JSON · 01-23-2021, 11:51 PM

Any updates? I'm having random misfire out of the blue. Changed all spark plugs and cleaned TB to no avail. Wondering if a coil pack is bad, because car is vibrating even at idle like a cylinder isn't firing. Only P0300 tho

08-10-2020, 08:41 AM	#1 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	When was the last time you cleaned your MAFs? May not be your problem but it's a very easy job and probably needs to be done anyway - screwdriver, MAF spray, and about 5 minutes per side. At least one DIY thread on this site. Edit: If your air filter is more than 2-3 years old, go ahead and replace it. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

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01-23-2021, 11:51 PM	#3 (permalink)
JSON Base Member Join Date: Jul 2015 Location: Houston Posts: 50 Drives: 09 AW 370Z Sport 6MT Rep Power: 10	Any updates? I'm having random misfire out of the blue. Changed all spark plugs and cleaned TB to no avail. Wondering if a coil pack is bad, because car is vibrating even at idle like a cylinder isn't firing. Only P0300 tho