2001 Toyota Tacoma Starts Then Dies?

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Noah

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Hi, my 2001 Tacoma 2.7 L has been doing this lately, its not all the time, just maybe once every 5-10 times i go to start it: When its already warmed up (never when its cold) the engine will turn over and catch and run for about one second (always at very low rpms) then it will choke and die. When i go to start it back up I have to give it a lot of gas and rev it up to get it to run again then it will typically idle fine. Once however, i had to keep my foot on the gas for about 5 minutes or else the rpms would drop and it would die. I've replace the fuel filter and spark plugs, and checked the fuel pump which is fine. There is no service light that comes on. I have no clue what this is, any help would be GREATLY appreciated!! Thanks for your time!
 
Try cleaning the MAF sensor with Carb Cleaner first off....
I do know a bad O2 sensor will do EXACTLY What you stated, But it's to my understanding a check engine light should come on??

Basically when the motor is cold the ECU runs on a controlled loop program "Which is why your car starts and runs fine"

Once the car reached operational temp the loop program is disengaged and your car starts to receive readings from your sensors and balances out air/fuel. Your O2 sensor is most likely giving out a bad signal and is throwing off your air/fuel mix causing your motor to die at idle.

My best advise replace the O2 sensor. Well let me be specific the 1st O2 sensor on your exhaust manifold.

Best of luck!!!

Edit--- What that Toyota Tech guy said Kinda Makes sense too.... Like I stated IF it was an O2 sensor you should have seen a code. My diagnosis was good but .. Well he's a Toyota Tech lol

Don't be fooled what he told you to do is really not that difficult do not let it temp you to hire someone with basic skills you can do this.

Like he sated get to the TB remove it, remove the sensor clean and lube it, New TB gasket bolt it back on.

The hose he speaks of runs the warm coolant through your TB to loosen it up on cold days, you will lose coolant but nothing to crazy.

To bleed your coolant system park on a hill, or jack the front of your car up remove your cap and run the car till it's warm, you should get air bubbles keep topping it off till the bubbles stop.

Hopefully through this whole precedure your tps should not need to be reset.

again..... BEST OF LUCK!!!!
 
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