96 Tacoma Stumbles off idle


unioncitychoppers
09-02-2009, 12:43 PM
Hi guys new to to forum and hoping like heck you guys can help!! I have a 96 tacoma 2.7ltr 4cyl It starts and runs however if you "blip" the throttle (accelerate quickly) it stumbles horribly, however if you slowly roll on the throttle it wont stumble. I replaced the plugs,wires, cap, rotor which did not help at all there is no codes and no pending codes. I checked the engine vacuum and it around 22inches of vacuum however the gauge is fluttering to 19 inches, this leads me to another question- Shouldnt there be vacuum to ALL the hose on top of the throttle body? All of the small diameter hoses have no vacuum at all I.E Egr valve, fuel pressure reg, etc.. I really dont know where else to go any help would greatly appreciated... Maybe its not even a vacuum issue I dont know!!

1978shovelhead
12-02-2009, 07:19 PM
try getting the catliac coverter checked .
did u change the fuel filter?

01LSIMPALA
04-25-2010, 09:41 PM
Fuel filter

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