Quote:
Originally Posted by ThatT4RGuy
From your description and the pictures the hole is at the MAF sensor, so the clean side of the filter. Meaning it goes to the engine not back to the air box. This hole will effect performance as the MAF reading will be incorrect. You will likely be pushing more air and possibly running a little lean on your Air to Fuel ratio. Not sure if 4Runners run rich A/F ratio stock but lean is not advisable. This might also be boosting performance but you're also letting unfiltered/unclean air into the engine. Bad idea.
Duct tape should work. You can also get plastic putty to cover it up permanently. You can find a plastic repair kit anywhere.
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Ya, that was my thought. I was chasing a misfire on cylinder two and noticed this when I took the airbox off. Definitely doesn’t look like it would help my A/F ratio changed the plugs and one ignition coil for the cheap Chinese one that was in there and it did the trick. I normally don’t post stuff because there is always a post about any problem I’ve ever encountered. This site is great. Had this truck for under a year and bought it for $700
03 V8 limited. Bilsteins, rear OME 895e springs. 285/75/16 Nitto Terra Grapplers Tacoma Wheels.
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