Cuts out for a split second while accelerating PLEASE HELP!
1998 4 runner 3.4l motor
new parts Rebuilt motor (prem parts) new fuel pump New filter Changed maf to later model Plugs/wires Coil packs It idles decent maybe a touch rough and it has plenty of power but when I hit the gas it cuts out just for a split second and goes fine the rest of the gears. Like a vuh-ut-roooom haha! I do have a running lean code but I associate that with the new maf, or the crap temporary exhaust I whipped up just so I could get the 02 sensors in (stick welded 😂😂😂😂) maybe this is the issue?? Thanks guys |
Get your lean code fixed .
The NEW Style MAF or Exhaust will not give you a lean code . Maybe a PO420 if you have leaky exhaust. Sucking Air anyplace you should not be ?? Your sure more codes have no tripped?? |
So after 2 days and one screw it turned out to be the aftermarket air filter I had on, it was too restrictive. That's what I get for going cheap 😂 my word I feel stupid, thanks for the help man!!
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Originally Posted by Soumipukuu
(Post 52401167)
So after 2 days and one screw it turned out to be the aftermarket air filter I had on, it was too restrictive. That's what I get for going cheap 😂 my word I feel stupid, thanks for the help man!!
I'll try the air filter, it's probably due for one anyways...thanks for posting your fix! |
Guys,
Please others in the future by telling us which after-market filter you've had problems with so we can avoid them, too. That's what this forum is for; To help people solve their problems and to help others prevent problems. It could also be bad fuel leading to clogged injectors. It happened to my Sentra in 1986 - solved with STP fuel injector cleaner. It also recently happened to my 1986 truck upon leaving the back roads of Utah. Hesitation when accelerating. A few tankfuls of fuel from better sources combined with 2 treatments with FI cleaner and it's fixed. |
Twas a short Spectre one 😅😅 I just had it laying around haha!
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