Odd starting issue when car is warm
#1
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Odd starting issue when car is warm
So after a long drive, if I stop and shut the car off and go back to start it again within minutes, it will not start unless I give it a little gas and it's a hard start. When the engine is cold or even sits for 20 mins or on freezing day, the engine start up without hesitation.
Anyone hear of this or know where I should start looking? This only happens after a good drive in traffic and the engine is warm. Not when it's cold.
Anyone hear of this or know where I should start looking? This only happens after a good drive in traffic and the engine is warm. Not when it's cold.
#2
#3
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Could it be that intake temp sensor near the battery that most just "dangle" when they remove the stock air box?
Last edited by TDotMax; 01-22-2015 at 11:22 AM.
#4
it could be the sensors, on my 3.5 when the bank 2 sensor went bad, sometimes I would need to start it with a bit of gas or else it would die when the sensor was warm. Doesn't hurt to clean it up & try
the intake temp sensor may be but im not too familiar with the VQ30
Last edited by Mateen995; 01-22-2015 at 11:27 AM.
#5
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what is starting issue like? Does it fire right-up if you give it gas or trembles a bit into starting?
it could be the sensors, on my 3.5 when the bank 2 sensor went bad, sometimes I would need to start it with a bit of gas or else it would die when the sensor was warm. Doesn't hurt to clean it up & try
the intake temp sensor may be but im not too familiar with the VQ30
it could be the sensors, on my 3.5 when the bank 2 sensor went bad, sometimes I would need to start it with a bit of gas or else it would die when the sensor was warm. Doesn't hurt to clean it up & try
the intake temp sensor may be but im not too familiar with the VQ30
#8
So after a long drive, if I stop and shut the car off and go back to start it again within minutes, it will not start unless I give it a little gas and it's a hard start. When the engine is cold or even sits for 20 mins or on freezing day, the engine start up without hesitation.
Anyone hear of this or know where I should start looking? This only happens after a good drive in traffic and the engine is warm. Not when it's cold.
Anyone hear of this or know where I should start looking? This only happens after a good drive in traffic and the engine is warm. Not when it's cold.
The only tricky part is how to go about it- you need to ask ECU nicely to open butterfly plate for you otherwise you'd get into all the trouble of it losing reference point. The easiest way is to shut the engine when in gear and then disconnect the air box, turn the key back to ON (not START), press accelerator and hold it with something and you'd have access to the plate. Basically as long as you use stock means to control plate position you're going to be fine. 15 minutes job, literally.
If your car is 2000 then it's even simpler as it has mechanically controlled plate, you just open it with your hand and clean using some carb cleaner. I'd disconnect negative battery terminal for 2k model, just in case.
Last edited by Max_5gen; 01-22-2015 at 03:27 PM.
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