Sputtering while holding a steady speed.

phill1965

New Member
I have a 2000 Toyota Tacoma 3.4 l. First off there are no codes available. I have this spitting and sputtering while holding a steady speed. I have replaced the maf sensor throttle position sensor O2 sensor new plugs and wires new air filter. Can someone help me as to what it could be. I'm not for sure if the fuel pump is going bad or the fuel pressure regulator.
 
Welcome to the forum.
Sounds like you’ve started the process.

Check for exhaust leak? Seals and gaskets along the exhaust system? Cracked manifold?

Check for vacuum leaks?

Clean the MAF?

Blocked or dirty injector(s)?

Failing catalytic converter?
Usually the check engine light will come on but it might not be there yet.
 
I had a little missing on my 2.7 02. I actually did get a miss fire code though. I finally changed the fuel filter after 350K miles. Seems to have stopped the miss. good luck.
 
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